一、硬件设备以及连接
1、设备名称
NodeMcu x 1
DHT11 x 1
OLED(0.91) x 1
继电器 x 1
杜邦线若干
面包板 x 1
2、传感器连接
硬件连接图.png
二、软件部分代码以及库的引用
1、库函数引用
ESP8266【WiFi开发板】
①文件-首选项-修改附加开发板管理器网址
开发板管理器.png
http://arduino.esp8266.com/stable/package_esp8266com_index.json
②工具-管理库
库文件.png
SimpleDHT【DHT11】
PubSubClient【MQTT】
ArduinoJson【Json】
2、程序流程图
流程图.png
3、代码部分
- DHT11模块使用了SimpleDHT这个库,使用这个库可以加快开发速度。不需要编写协议时序,使用库之后代码也非常简单。
#include
int DHT_01_pin = D4; //D4引脚
int read_temp = 0;
int read_hum = 0;
SimpleDHT11 dht11_01(DHT_01_pin);
byte temperature_01 = 0, humidity_01 = 0;
if (dht11_01.read(&temperature_01, &humidity_01, NULL) == SimpleDHTErrSuccess)
{
read_temp = (int)temperature_01;
read_hum = (int)humidity_01;
}
- OLED(0.91)模块此模块我使用了软件模拟了I2C的时序,此方法比较困难不适合初学者学习
-
- 字模代码
const unsigned char F6x8[][6] =
{
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},// sp
{0x00, 0x00, 0x00, 0x2f, 0x00, 0x00},// !
{0x00, 0x00, 0x07, 0x00, 0x07, 0x00},// "
{0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14},// #
{0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12},// $
{0x00, 0x62, 0x64, 0x08, 0x13, 0x23},// %
{0x00, 0x36, 0x49, 0x55, 0x22, 0x50},// &
{0x00, 0x00, 0x05, 0x03, 0x00, 0x00},// '
{0x00, 0x00, 0x1c, 0x22, 0x41, 0x00},// (
{0x00, 0x00, 0x41, 0x22, 0x1c, 0x00},// )
{0x00, 0x14, 0x08, 0x3E, 0x08, 0x14},// *
{0x00, 0x08, 0x08, 0x3E, 0x08, 0x08},// +
{0x00, 0x00, 0x00, 0xA0, 0x60, 0x00},// ,
{0x00, 0x08, 0x08, 0x08, 0x08, 0x08},// -
{0x00, 0x00, 0x60, 0x60, 0x00, 0x00},// .
{0x00, 0x20, 0x10, 0x08, 0x04, 0x02},// /
{0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E},// 0
{0x00, 0x00, 0x42, 0x7F, 0x40, 0x00},// 1
{0x00, 0x42, 0x61, 0x51, 0x49, 0x46},// 2
{0x00, 0x21, 0x41, 0x45, 0x4B, 0x31},// 3
{0x00, 0x18, 0x14, 0x12, 0x7F, 0x10},// 4
{0x00, 0x27, 0x45, 0x45, 0x45, 0x39},// 5
{0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30},// 6
{0x00, 0x01, 0x71, 0x09, 0x05, 0x03},// 7
{0x00, 0x36, 0x49, 0x49, 0x49, 0x36},// 8
{0x00, 0x06, 0x49, 0x49, 0x29, 0x1E},// 9
{0x00, 0x00, 0x36, 0x36, 0x00, 0x00},// :
{0x00, 0x00, 0x56, 0x36, 0x00, 0x00},// ;
{0x00, 0x08, 0x14, 0x22, 0x41, 0x00},// <
{0x00, 0x14, 0x14, 0x14, 0x14, 0x14},// =
{0x00, 0x00, 0x41, 0x22, 0x14, 0x08},// >
{0x00, 0x02, 0x01, 0x51, 0x09, 0x06},// ?
{0x00, 0x32, 0x49, 0x59, 0x51, 0x3E},// @
{0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C},// A
{0x00, 0x7F, 0x49, 0x49, 0x49, 0x36},// B
{0x00, 0x3E, 0x41, 0x41, 0x41, 0x22},// C
{0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C},// D
{0x00, 0x7F, 0x49, 0x49, 0x49, 0x41},// E
{0x00, 0x7F, 0x09, 0x09, 0x09, 0x01},// F
{0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A},// G
{0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F},// H
{0x00, 0x00, 0x41, 0x7F, 0x41, 0x00},// I
{0x00, 0x20, 0x40, 0x41, 0x3F, 0x01},// J
{0x00, 0x7F, 0x08, 0x14, 0x22, 0x41},// K
{0x00, 0x7F, 0x40, 0x40, 0x40, 0x40},// L
{0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F},// M
{0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F},// N
{0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E},// O
{0x00, 0x7F, 0x09, 0x09, 0x09, 0x06},// P
{0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E},// Q
{0x00, 0x7F, 0x09, 0x19, 0x29, 0x46},// R
{0x00, 0x46, 0x49, 0x49, 0x49, 0x31},// S
{0x00, 0x01, 0x01, 0x7F, 0x01, 0x01},// T
{0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F},// U
{0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F},// V
{0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F},// W
{0x00, 0x63, 0x14, 0x08, 0x14, 0x63},// X
{0x00, 0x07, 0x08, 0x70, 0x08, 0x07},// Y
{0x00, 0x61, 0x51, 0x49, 0x45, 0x43},// Z
{0x00, 0x00, 0x7F, 0x41, 0x41, 0x00},// [
{0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55},// 55
{0x00, 0x00, 0x41, 0x41, 0x7F, 0x00},// ]
{0x00, 0x04, 0x02, 0x01, 0x02, 0x04},// ^
{0x00, 0x40, 0x40, 0x40, 0x40, 0x40},// _
{0x00, 0x00, 0x01, 0x02, 0x04, 0x00},// '
{0x00, 0x20, 0x54, 0x54, 0x54, 0x78},// a
{0x00, 0x7F, 0x48, 0x44, 0x44, 0x38},// b
{0x00, 0x38, 0x44, 0x44, 0x44, 0x20},// c
{0x00, 0x38, 0x44, 0x44, 0x48, 0x7F},// d
{0x00, 0x38, 0x54, 0x54, 0x54, 0x18},// e
{0x00, 0x08, 0x7E, 0x09, 0x01, 0x02},// f
{0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C},// g
{0x00, 0x7F, 0x08, 0x04, 0x04, 0x78},// h
{0x00, 0x00, 0x44, 0x7D, 0x40, 0x00},// i
{0x00, 0x40, 0x80, 0x84, 0x7D, 0x00},// j
{0x00, 0x7F, 0x10, 0x28, 0x44, 0x00},// k
{0x00, 0x00, 0x41, 0x7F, 0x40, 0x00},// l
{0x00, 0x7C, 0x04, 0x18, 0x04, 0x78},// m
{0x00, 0x7C, 0x08, 0x04, 0x04, 0x78},// n
{0x00, 0x38, 0x44, 0x44, 0x44, 0x38},// o
{0x00, 0xFC, 0x24, 0x24, 0x24, 0x18},// p
{0x00, 0x18, 0x24, 0x24, 0x18, 0xFC},// q
{0x00, 0x7C, 0x08, 0x04, 0x04, 0x08},// r
{0x00, 0x48, 0x54, 0x54, 0x54, 0x20},// s
{0x00, 0x04, 0x3F, 0x44, 0x40, 0x20},// t
{0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C},// u
{0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C},// v
{0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C},// w
{0x00, 0x44, 0x28, 0x10, 0x28, 0x44},// x
{0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C},// y
{0x00, 0x44, 0x64, 0x54, 0x4C, 0x44},// z
{0x14, 0x14, 0x14, 0x14, 0x14, 0x14},// horiz lines
};
const unsigned char F8X16[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0
0x00, 0x00, 0x00, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x30, 0x00, 0x00, 0x00, //! 1
0x00, 0x10, 0x0C, 0x06, 0x10, 0x0C, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //" 2
0x40, 0xC0, 0x78, 0x40, 0xC0, 0x78, 0x40, 0x00, 0x04, 0x3F, 0x04, 0x04, 0x3F, 0x04, 0x04, 0x00, //# 3
0x00, 0x70, 0x88, 0xFC, 0x08, 0x30, 0x00, 0x00, 0x00, 0x18, 0x20, 0xFF, 0x21, 0x1E, 0x00, 0x00, //$ 4
0xF0, 0x08, 0xF0, 0x00, 0xE0, 0x18, 0x00, 0x00, 0x00, 0x21, 0x1C, 0x03, 0x1E, 0x21, 0x1E, 0x00, //% 5
0x00, 0xF0, 0x08, 0x88, 0x70, 0x00, 0x00, 0x00, 0x1E, 0x21, 0x23, 0x24, 0x19, 0x27, 0x21, 0x10, //& 6
0x10, 0x16, 0x0E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //' 7
0x00, 0x00, 0x00, 0xE0, 0x18, 0x04, 0x02, 0x00, 0x00, 0x00, 0x00, 0x07, 0x18, 0x20, 0x40, 0x00, //( 8
0x00, 0x02, 0x04, 0x18, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x40, 0x20, 0x18, 0x07, 0x00, 0x00, 0x00, //) 9
0x40, 0x40, 0x80, 0xF0, 0x80, 0x40, 0x40, 0x00, 0x02, 0x02, 0x01, 0x0F, 0x01, 0x02, 0x02, 0x00, //* 10
0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x1F, 0x01, 0x01, 0x01, 0x00, //+ 11
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xB0, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, //, 12
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, //- 13
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, //. 14
0x00, 0x00, 0x00, 0x00, 0x80, 0x60, 0x18, 0x04, 0x00, 0x60, 0x18, 0x06, 0x01, 0x00, 0x00, 0x00, /// 15
0x00, 0xE0, 0x10, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x00, 0x0F, 0x10, 0x20, 0x20, 0x10, 0x0F, 0x00, //0 16
0x00, 0x10, 0x10, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //1 17
0x00, 0x70, 0x08, 0x08, 0x08, 0x88, 0x70, 0x00, 0x00, 0x30, 0x28, 0x24, 0x22, 0x21, 0x30, 0x00, //2 18
0x00, 0x30, 0x08, 0x88, 0x88, 0x48, 0x30, 0x00, 0x00, 0x18, 0x20, 0x20, 0x20, 0x11, 0x0E, 0x00, //3 19
0x00, 0x00, 0xC0, 0x20, 0x10, 0xF8, 0x00, 0x00, 0x00, 0x07, 0x04, 0x24, 0x24, 0x3F, 0x24, 0x00, //4 20
0x00, 0xF8, 0x08, 0x88, 0x88, 0x08, 0x08, 0x00, 0x00, 0x19, 0x21, 0x20, 0x20, 0x11, 0x0E, 0x00, //5 21
0x00, 0xE0, 0x10, 0x88, 0x88, 0x18, 0x00, 0x00, 0x00, 0x0F, 0x11, 0x20, 0x20, 0x11, 0x0E, 0x00, //6 22
0x00, 0x38, 0x08, 0x08, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, //7 23
0x00, 0x70, 0x88, 0x08, 0x08, 0x88, 0x70, 0x00, 0x00, 0x1C, 0x22, 0x21, 0x21, 0x22, 0x1C, 0x00, //8 24
0x00, 0xE0, 0x10, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x00, 0x00, 0x31, 0x22, 0x22, 0x11, 0x0F, 0x00, //9 25
0x00, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, //: 26
0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x60, 0x00, 0x00, 0x00, 0x00, //; 27
0x00, 0x00, 0x80, 0x40, 0x20, 0x10, 0x08, 0x00, 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x00, //< 28
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x00, //= 29
0x00, 0x08, 0x10, 0x20, 0x40, 0x80, 0x00, 0x00, 0x00, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, //> 30
0x00, 0x70, 0x48, 0x08, 0x08, 0x08, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x30, 0x36, 0x01, 0x00, 0x00, //? 31
0xC0, 0x30, 0xC8, 0x28, 0xE8, 0x10, 0xE0, 0x00, 0x07, 0x18, 0x27, 0x24, 0x23, 0x14, 0x0B, 0x00, //@ 32
0x00, 0x00, 0xC0, 0x38, 0xE0, 0x00, 0x00, 0x00, 0x20, 0x3C, 0x23, 0x02, 0x02, 0x27, 0x38, 0x20, //A 33
0x08, 0xF8, 0x88, 0x88, 0x88, 0x70, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x11, 0x0E, 0x00, //B 34
0xC0, 0x30, 0x08, 0x08, 0x08, 0x08, 0x38, 0x00, 0x07, 0x18, 0x20, 0x20, 0x20, 0x10, 0x08, 0x00, //C 35
0x08, 0xF8, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x10, 0x0F, 0x00, //D 36
0x08, 0xF8, 0x88, 0x88, 0xE8, 0x08, 0x10, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x23, 0x20, 0x18, 0x00, //E 37
0x08, 0xF8, 0x88, 0x88, 0xE8, 0x08, 0x10, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x03, 0x00, 0x00, 0x00, //F 38
0xC0, 0x30, 0x08, 0x08, 0x08, 0x38, 0x00, 0x00, 0x07, 0x18, 0x20, 0x20, 0x22, 0x1E, 0x02, 0x00, //G 39
0x08, 0xF8, 0x08, 0x00, 0x00, 0x08, 0xF8, 0x08, 0x20, 0x3F, 0x21, 0x01, 0x01, 0x21, 0x3F, 0x20, //H 40
0x00, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //I 41
0x00, 0x00, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x00, 0xC0, 0x80, 0x80, 0x80, 0x7F, 0x00, 0x00, 0x00, //J 42
0x08, 0xF8, 0x88, 0xC0, 0x28, 0x18, 0x08, 0x00, 0x20, 0x3F, 0x20, 0x01, 0x26, 0x38, 0x20, 0x00, //K 43
0x08, 0xF8, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x20, 0x30, 0x00, //L 44
0x08, 0xF8, 0xF8, 0x00, 0xF8, 0xF8, 0x08, 0x00, 0x20, 0x3F, 0x00, 0x3F, 0x00, 0x3F, 0x20, 0x00, //M 45
0x08, 0xF8, 0x30, 0xC0, 0x00, 0x08, 0xF8, 0x08, 0x20, 0x3F, 0x20, 0x00, 0x07, 0x18, 0x3F, 0x00, //N 46
0xE0, 0x10, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x0F, 0x10, 0x20, 0x20, 0x20, 0x10, 0x0F, 0x00, //O 47
0x08, 0xF8, 0x08, 0x08, 0x08, 0x08, 0xF0, 0x00, 0x20, 0x3F, 0x21, 0x01, 0x01, 0x01, 0x00, 0x00, //P 48
0xE0, 0x10, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x0F, 0x18, 0x24, 0x24, 0x38, 0x50, 0x4F, 0x00, //Q 49
0x08, 0xF8, 0x88, 0x88, 0x88, 0x88, 0x70, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x03, 0x0C, 0x30, 0x20, //R 50
0x00, 0x70, 0x88, 0x08, 0x08, 0x08, 0x38, 0x00, 0x00, 0x38, 0x20, 0x21, 0x21, 0x22, 0x1C, 0x00, //S 51
0x18, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x18, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x00, 0x00, //T 52
0x08, 0xF8, 0x08, 0x00, 0x00, 0x08, 0xF8, 0x08, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x20, 0x1F, 0x00, //U 53
0x08, 0x78, 0x88, 0x00, 0x00, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x07, 0x38, 0x0E, 0x01, 0x00, 0x00, //V 54
0xF8, 0x08, 0x00, 0xF8, 0x00, 0x08, 0xF8, 0x00, 0x03, 0x3C, 0x07, 0x00, 0x07, 0x3C, 0x03, 0x00, //W 55
0x08, 0x18, 0x68, 0x80, 0x80, 0x68, 0x18, 0x08, 0x20, 0x30, 0x2C, 0x03, 0x03, 0x2C, 0x30, 0x20, //X 56
0x08, 0x38, 0xC8, 0x00, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x00, 0x00, //Y 57
0x10, 0x08, 0x08, 0x08, 0xC8, 0x38, 0x08, 0x00, 0x20, 0x38, 0x26, 0x21, 0x20, 0x20, 0x18, 0x00, //Z 58
0x00, 0x00, 0x00, 0xFE, 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x7F, 0x40, 0x40, 0x40, 0x00, //[ 59
0x00, 0x0C, 0x30, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x38, 0xC0, 0x00, //\ 60
0x00, 0x02, 0x02, 0x02, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x40, 0x7F, 0x00, 0x00, 0x00, //] 61
0x00, 0x00, 0x04, 0x02, 0x02, 0x02, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //^ 62
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, //_ 63
0x00, 0x02, 0x02, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //` 64
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x19, 0x24, 0x22, 0x22, 0x22, 0x3F, 0x20, //a 65
0x08, 0xF8, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x11, 0x20, 0x20, 0x11, 0x0E, 0x00, //b 66
0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0x20, 0x11, 0x00, //c 67
0x00, 0x00, 0x00, 0x80, 0x80, 0x88, 0xF8, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0x10, 0x3F, 0x20, //d 68
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x1F, 0x22, 0x22, 0x22, 0x22, 0x13, 0x00, //e 69
0x00, 0x80, 0x80, 0xF0, 0x88, 0x88, 0x88, 0x18, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //f 70
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x6B, 0x94, 0x94, 0x94, 0x93, 0x60, 0x00, //g 71
0x08, 0xF8, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x3F, 0x21, 0x00, 0x00, 0x20, 0x3F, 0x20, //h 72
0x00, 0x80, 0x98, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //i 73
0x00, 0x00, 0x00, 0x80, 0x98, 0x98, 0x00, 0x00, 0x00, 0xC0, 0x80, 0x80, 0x80, 0x7F, 0x00, 0x00, //j 74
0x08, 0xF8, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x20, 0x3F, 0x24, 0x02, 0x2D, 0x30, 0x20, 0x00, //k 75
0x00, 0x08, 0x08, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //l 76
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x3F, 0x20, 0x00, 0x3F, //m 77
0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x3F, 0x21, 0x00, 0x00, 0x20, 0x3F, 0x20, //n 78
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x20, 0x1F, 0x00, //o 79
0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x80, 0xFF, 0xA1, 0x20, 0x20, 0x11, 0x0E, 0x00, //p 80
0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0xA0, 0xFF, 0x80, //q 81
0x80, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x20, 0x20, 0x3F, 0x21, 0x20, 0x00, 0x01, 0x00, //r 82
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x33, 0x24, 0x24, 0x24, 0x24, 0x19, 0x00, //s 83
0x00, 0x80, 0x80, 0xE0, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x00, 0x00, //t 84
0x80, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x10, 0x3F, 0x20, //u 85
0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x01, 0x0E, 0x30, 0x08, 0x06, 0x01, 0x00, //v 86
0x80, 0x80, 0x00, 0x80, 0x00, 0x80, 0x80, 0x80, 0x0F, 0x30, 0x0C, 0x03, 0x0C, 0x30, 0x0F, 0x00, //w 87
0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x31, 0x2E, 0x0E, 0x31, 0x20, 0x00, //x 88
0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x81, 0x8E, 0x70, 0x18, 0x06, 0x01, 0x00, //y 89
0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x21, 0x30, 0x2C, 0x22, 0x21, 0x30, 0x00, //z 90
0x00, 0x00, 0x00, 0x00, 0x80, 0x7C, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x40, 0x40, //{ 91
0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, //| 92
0x00, 0x02, 0x02, 0x7C, 0x80, 0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x3F, 0x00, 0x00, 0x00, 0x00, //} 93
0x00, 0x06, 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //~ 94
};
-
- I2C端口模拟
//I2C管脚的定义
#define SDA D1
#define SCL D2
//输出电平的宏定义
#define I2C_SCL_L digitalWrite(SCL,LOW)//SCL
#define I2C_SCL_H digitalWrite(SCL,HIGH)
#define I2C_SDA_L digitalWrite(SDA,LOW)//SDA
#define I2C_SDA_H digitalWrite(SDA,HIGH)
//管脚模式的宏定义
#define SCL_OUT pinMode(SCL, OUTPUT) //SCL
#define SDA_OUT pinMode(SDA, OUTPUT) //SDA
//初始化
void I2C_Init()
{
SDA_OUT;
SCL_OUT;
I2C_SDA_H;
I2C_SCL_H;
}
//I2C开始
void I2C_Start()
{
I2C_SCL_H;
I2C_SDA_H;
I2C_SDA_L;
I2C_SCL_L;
}
//I2C结束
void I2C_Stop()
{
I2C_SCL_L;
I2C_SDA_L;
I2C_SCL_H;
I2C_SDA_H;
}
//检查应答信号
void I2C_Wait_Ack()
{
I2C_SCL_H;
I2C_SCL_L;
}
-
- I2C数据发送
//I2C写入一个字节
void Write_I2C_Byte(unsigned char IIC_Byte)
{
unsigned char i;
unsigned char m, da;
da = IIC_Byte;
I2C_SCL_L;
for (i = 0; i < 8; i++)
{
m = da;
m = m & 0x80;
if (m == 0x80)
I2C_SDA_H;
else
I2C_SDA_L;
da = da << 1;
I2C_SCL_H;
I2C_SCL_L;
}
}
void Write_I2C_Command(unsigned char IIC_Command)
{
I2C_Start();
Write_I2C_Byte(0x78); //Slave address,SA0=0
I2C_Wait_Ack();
Write_I2C_Byte(0x00); //write command
I2C_Wait_Ack();
Write_I2C_Byte(IIC_Command);
I2C_Wait_Ack();
I2C_Stop();
}
// IIC Write Data
void Write_I2C_Data(unsigned char IIC_Data)
{
I2C_Start();
Write_I2C_Byte(0x78); //D/C#=0; R/W#=0
I2C_Wait_Ack();
Write_I2C_Byte(0x40); //write data
I2C_Wait_Ack();
Write_I2C_Byte(IIC_Data);
I2C_Wait_Ack();
I2C_Stop();
}
void OLED_WR_Byte(unsigned char dat, unsigned char cmd)
{
if (cmd)
{
Write_I2C_Data(dat);
}
else
{
Write_I2C_Command(dat);
}
}
-
- OLED操作函数
//坐标设置
void OLED_Set_Pos(u8 x, u8 y)
{
OLED_WR_Byte(0xb0 + y, OLED_CMD);
OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
OLED_WR_Byte((x & 0x0f), OLED_CMD);
}
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
void OLED_Clear(void)
{
u8 i, n;
for (i = 0; i < 8; i++)
{
OLED_WR_Byte (0xb0 + i, OLED_CMD); //设置页地址(0~7)
OLED_WR_Byte (0x00, OLED_CMD); //设置显示位置—列低地址
OLED_WR_Byte (0x10, OLED_CMD); //设置显示位置—列高地址
for (n = 0; n < 128; n++)OLED_WR_Byte(0, OLED_DATA);
} //更新显示
}
// 局部刷新 x:0~127 y:0 ~ 3
// 部分刷新 例如 需要刷新OLED 最后一行OLED_Clear_Local(0,3);
void OLED_Clear_Local(u8 x , u8 y)
{
u8 i, n;
for (i = y; i < 4; i++)
{
OLED_WR_Byte (0xb0 + i, OLED_CMD); //设置页地址(0~7)
OLED_WR_Byte (0x00, OLED_CMD); //设置显示位置—列低地址
OLED_WR_Byte (0x10, OLED_CMD); //设置显示位置—列高地址
OLED_Set_Pos(x, i);
for (n = x; n < 128; n++)OLED_WR_Byte(0, OLED_DATA);
} //更新显示
}
//显示单个字符
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t Char_Size)
{
unsigned char c = 0, i = 0;
c = chr - ' '; //得到偏移后的值
if (x > Max_Column - 1) {
x = 0;
y = y + 2;
}
if (Char_Size == 16)
{
OLED_Set_Pos(x, y);
for (i = 0; i < 8; i++)
{
OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
}
OLED_Set_Pos(x, y + 1);
for (i = 0; i < 8; i++) {
OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
}
}
else
{
OLED_Set_Pos(x, y);
for (i = 0; i < 6; i++)
OLED_WR_Byte(F6x8[c][i], OLED_DATA);
}
}
//-----------------------------------
//|x→[0,127] |
//| OLED显示坐标 |
//|y 范围 |
//|↓ |
//|[0,3] |
//-----------------------------------
void OLED_ShowString(uint8_t x, uint8_t y, uint8_t *chr, uint8_t Char_Size)
{
unsigned char j = 0;
while (chr[j] != '\0')
{
OLED_ShowChar(x, y, chr[j], Char_Size);
x += 8;
if (x > 120)
{
x = 0; y += 2;
}
j++;
}
}
uint32_t oled_pow(uint8_t m, uint8_t n)
{
uint32_t result = 1;
while (n--)result *= m;
return result;
}
//显示数字
void OLED_ShowNum(uint8_t x, uint8_t y, uint32_t num, uint8_t len, uint8_t size2)
{
uint8_t t, temp;
uint8_t enshow = 0;
for (t = 0; t < len; t++)
{
temp = (num / oled_pow(10, len - t - 1)) % 10;
if (enshow == 0 && t < (len - 1))
{
if (temp == 0)
{
OLED_ShowChar(x + (size2 / 2)*t, y, ' ', size2);
continue;
} else
enshow = 1;
}
OLED_ShowChar(x + (size2 / 2)*t, y, temp + '0', size2);
}
}
// 此函数仅供0.91寸使用
void OLED_Init(void)
{
I2C_Init(); //初始化I2C 管脚输出高电平
delay(200);
OLED_WR_Byte(0xAE, OLED_CMD); //关闭显示
OLED_WR_Byte(0x40, OLED_CMD); //---set low column address
OLED_WR_Byte(0xB0, OLED_CMD); //---set high column address
OLED_WR_Byte(0xC8, OLED_CMD); //-not offset
OLED_WR_Byte(0x81, OLED_CMD); //设置对比度
OLED_WR_Byte(0xff, OLED_CMD);
OLED_WR_Byte(0xa1, OLED_CMD); //段重定向设置
OLED_WR_Byte(0xa6, OLED_CMD); //
OLED_WR_Byte(0xa8, OLED_CMD); //设置驱动路数
OLED_WR_Byte(0x1f, OLED_CMD);
OLED_WR_Byte(0xd3, OLED_CMD);
OLED_WR_Byte(0x00, OLED_CMD);
OLED_WR_Byte(0xd5, OLED_CMD);
OLED_WR_Byte(0xf0, OLED_CMD);
OLED_WR_Byte(0xd9, OLED_CMD);
OLED_WR_Byte(0x22, OLED_CMD);
OLED_WR_Byte(0xda, OLED_CMD);
OLED_WR_Byte(0x02, OLED_CMD);
OLED_WR_Byte(0xdb, OLED_CMD);
OLED_WR_Byte(0x49, OLED_CMD);
OLED_WR_Byte(0x8d, OLED_CMD);
OLED_WR_Byte(0x14, OLED_CMD);
OLED_WR_Byte(0xaf, OLED_CMD);
OLED_Clear();
}
- 继电器控制
-
- 继电器初始化
int relay = D6;
pinMode(relay, OUTPUT);
delay(200);
digitalWrite(relay, LOW);
-
- 继电器控制 此方法和mqtt_callback函数以及Json配合使用
如果上位机通过MQTT协议向ESP8266发送数据,这些数据会经过mqtt_callback函数进行接收,使用ArduinoJson进行Json解析。
- 继电器控制 此方法和mqtt_callback函数以及Json配合使用
String relayState = "OFF";
if (strcmp("ON", relayState.c_str()) == 0)
{
digitalWrite(relay, HIGH);
reflashFlag = 1; //OLED 刷新标志
Serial.println(Relay_01_State);
}
if (strcmp("OFF", relayState.c_str()) == 0)
{
digitalWrite(relay, LOW);
reflashFlag = 1; //OLED 刷新标志
Serial.println(Relay_01_State);
}
- SmartConfig
智能硬件处于混杂模式下,监听网络中的所有报文,手机 APP 将 SSID 和密码编码到 UDP 报文中,通过广播包或组播报发送,智能硬件接收到 UDP 报文后解码,得到正确的 SSID 和密码,然后主动连接指定 SSID 的路由完成连接。
#include
bool wifiConnectState = false;
void WIFISmartConfig() { //wifi配置
int testConnectCount = 0;
Serial.println("\nAuto for connection ...");
while (WiFi.status() != WL_CONNECTED) {
if (!wifiConnectState) {
LEDStartInfo(500);
testConnectCount++;
if (testConnectCount >= 10 ) {
wifiConnectState = true;
Serial.println("Linked Faied ! Jump to SmartConfig...");
}
Serial.println("Linking ...");
} else {
WiFi.mode(WIFI_STA); //设置WIFI模块为STA模式
Serial.println("Waiting for connection ...");
WiFi.beginSmartConfig();
while (true) {
Serial.print(".");
LEDStartInfo(500);
if (WiFi.smartConfigDone()) {
Serial.println("\nSmartConfig Successed !");
for (int i = 0; i < 20; i++) {
LEDStartInfo(200);
}
break;
}
}
}
}
Serial.printf("\nSSID: %s", WiFi.SSID().c_str());//输出账号
Serial.printf("\nPassword: %s", WiFi.psk().c_str());//输出密码
Serial.printf("\nIP address: "); Serial.print(WiFi.localIP()); //输出IP地址
ipinfo = "IP:" + ip2Str(WiFi.localIP());
}
SmartConfig.png
- 此图为乐鑫ESPTouch软件 选择组播进行数据包的发送
APP下载地址:https://www.espressif.com/zh-hans/support/download/apps?keys=&field_type_tid%5B%5D=14
app.png
- ArduinoJson6函数及方法
注:ArduinoJson5版本和ArduinoJson6版本部分方法不一致,具体需要查询文档。
ArduinoJson6 文档:https://blog.csdn.net/weixin_30546933/article/details/96227470 -
- Json拼接
#include
String JSONmessageBuffer = ""; // 储存Json数据
StaticJsonDocument<200> json; //创建实例
JsonObject json_root = json.to(); // 创建Json根节点
json_root["roomLocation"] = "LivingRoom";
JsonObject device_name = json_root.createNestedObject("DeviceName");
JsonObject DHT11_01_values = device_name.createNestedObject("DHT11_01");
DHT11_01_values["Temperature:"] = read_temp;
DHT11_01_values["Humidity:"] = read_hum;
JsonObject Relay_01_state = device_name.createNestedObject("Relay_01");
Relay_01_state["State"] = relayState;
serializeJson(json, JSONmessageBuffer); // 将Json转化为String
//拼接之后
{
"roomLocation":"LivingRoom",
"DeviceName":{
"DHT11_01":{
"Temperature:":24,
"Humidity:":34
},
"Relay_01":{
"State":"OFF"
}
}
}
-
- Json解析
// 接收的Json数据
{
"Relay_01_State": "ON"
}
#include
StaticJsonDocument<200> docParser;
char receiveDataChar[length];
deserializeJson(docParser, receiveDataChar); //将char* 转化为Json数据
const char* Relay_01_State = docParser["Relay_01_State"];
Relay_01_State 的内容为 ON
RecMsg.png
- MQTT函数及方法
- boolean connect (clientID, [username, password], [willTopic, willQoS, willRetain, willMessage], [cleanSession])
client_Id 是当前设备的唯一标识,并且不能重复
username 是服务器的用户名【可不写】
password 是服务器的密码【可不写】
mqttClient.connect(client_Id, "admin", "public");
- boolean publish (topic, payload, [length], [retained])
topic 是一主题,如果其他设备订阅此主题,就可以接收到消息。
payload 需要发送的消息负载 【接收char数组】
mqttClient.publish(topic, JSONmessageBuffer.c_str());
3.boolean subscribe (topic, [qos])
topic 需要订阅的主题 【可以是自己的主题也可以是其他主题】
mqttClient.subscribe(subTopic);
4.boolean loop () 应该在循环中用它,以允许客户端处理传入的消息并维持其与服务器的连接。
void loop()
{
mqttClient.loop(); // 循环
}
- PubSubClient* setCallback(callback) 设置消息回调函数。
callback function* 指向消息回调函数的指针,当消息到达此客户端创建的预订时调用。
void mqtt_callback(char* topic, byte* payload, unsigned int length)
{
// 需要实现的方法
}
- MQTT实现
#include
#include
const char* mqtt_ServerIP = "192.168.1.195"; // MQTT服务器IP
const char* topic = "mqtt_NodeMucu";
const char* client_Id = "mqtt_client_NodeMcu_Device_01"; // 设备名称
const char* subTopic = "NodeMcu_Rec_Msg";
const int mqtt_ServerPort = 1883; //端口
WiFiClient espClient;
PubSubClient mqttClient(espClient);
void connection_mqtt_server() {
while (!mqttClient.connected()) {
Serial.println("\nAttempting MQTT connection...");
if (mqttClient.connect(client_Id, "admin", "public")) { // 连接成功
Serial.println("MQTT Server Connceted ! ");
mqttClient.subscribe(subTopic); // 订阅主题
} else { // 连接失败
Serial.println("failed, rc=");
Serial.print(mqttClient.state());
}
}
}
void setup() {
//此时WIFI以及成功连接
mqttClient.setServer(mqtt_ServerIP, mqtt_ServerPort);
mqttClient.setCallback(mqtt_callback);
connection_mqtt_server();
}
void loop(){
mqttClient.loop();
}
void mqtt_callback(char* topic, byte* payload, unsigned int length) {
//Callback回调函数
}
三、完整代码
#include
#include
#include
#include
/************************* OLED SET *********************************/
//I2C管脚的定义
#define SDA D1
#define SCL D2
//输出电平的宏定义
#define I2C_SCL_L digitalWrite(SCL,LOW)//SCL
#define I2C_SCL_H digitalWrite(SCL,HIGH)
#define I2C_SDA_L digitalWrite(SDA,LOW)//SDA
#define I2C_SDA_H digitalWrite(SDA,HIGH)
//管脚模式的宏定义
#define SCL_OUT pinMode(SCL, OUTPUT) //SCL
#define SDA_OUT pinMode(SDA, OUTPUT) //SDA
#define Max_Column 128
#define Max_Row 32
#define OLED_CMD 0 //写命令
#define OLED_DATA 1 //写数据
String ipinfo;
int read_temp = 0;
int read_hum = 0;
String relayState = "OFF";
const unsigned char F6x8[][6] =
{
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},// sp
{0x00, 0x00, 0x00, 0x2f, 0x00, 0x00},// !
{0x00, 0x00, 0x07, 0x00, 0x07, 0x00},// "
{0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14},// #
{0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12},// $
{0x00, 0x62, 0x64, 0x08, 0x13, 0x23},// %
{0x00, 0x36, 0x49, 0x55, 0x22, 0x50},// &
{0x00, 0x00, 0x05, 0x03, 0x00, 0x00},// '
{0x00, 0x00, 0x1c, 0x22, 0x41, 0x00},// (
{0x00, 0x00, 0x41, 0x22, 0x1c, 0x00},// )
{0x00, 0x14, 0x08, 0x3E, 0x08, 0x14},// *
{0x00, 0x08, 0x08, 0x3E, 0x08, 0x08},// +
{0x00, 0x00, 0x00, 0xA0, 0x60, 0x00},// ,
{0x00, 0x08, 0x08, 0x08, 0x08, 0x08},// -
{0x00, 0x00, 0x60, 0x60, 0x00, 0x00},// .
{0x00, 0x20, 0x10, 0x08, 0x04, 0x02},// /
{0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E},// 0
{0x00, 0x00, 0x42, 0x7F, 0x40, 0x00},// 1
{0x00, 0x42, 0x61, 0x51, 0x49, 0x46},// 2
{0x00, 0x21, 0x41, 0x45, 0x4B, 0x31},// 3
{0x00, 0x18, 0x14, 0x12, 0x7F, 0x10},// 4
{0x00, 0x27, 0x45, 0x45, 0x45, 0x39},// 5
{0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30},// 6
{0x00, 0x01, 0x71, 0x09, 0x05, 0x03},// 7
{0x00, 0x36, 0x49, 0x49, 0x49, 0x36},// 8
{0x00, 0x06, 0x49, 0x49, 0x29, 0x1E},// 9
{0x00, 0x00, 0x36, 0x36, 0x00, 0x00},// :
{0x00, 0x00, 0x56, 0x36, 0x00, 0x00},// ;
{0x00, 0x08, 0x14, 0x22, 0x41, 0x00},// <
{0x00, 0x14, 0x14, 0x14, 0x14, 0x14},// =
{0x00, 0x00, 0x41, 0x22, 0x14, 0x08},// >
{0x00, 0x02, 0x01, 0x51, 0x09, 0x06},// ?
{0x00, 0x32, 0x49, 0x59, 0x51, 0x3E},// @
{0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C},// A
{0x00, 0x7F, 0x49, 0x49, 0x49, 0x36},// B
{0x00, 0x3E, 0x41, 0x41, 0x41, 0x22},// C
{0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C},// D
{0x00, 0x7F, 0x49, 0x49, 0x49, 0x41},// E
{0x00, 0x7F, 0x09, 0x09, 0x09, 0x01},// F
{0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A},// G
{0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F},// H
{0x00, 0x00, 0x41, 0x7F, 0x41, 0x00},// I
{0x00, 0x20, 0x40, 0x41, 0x3F, 0x01},// J
{0x00, 0x7F, 0x08, 0x14, 0x22, 0x41},// K
{0x00, 0x7F, 0x40, 0x40, 0x40, 0x40},// L
{0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F},// M
{0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F},// N
{0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E},// O
{0x00, 0x7F, 0x09, 0x09, 0x09, 0x06},// P
{0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E},// Q
{0x00, 0x7F, 0x09, 0x19, 0x29, 0x46},// R
{0x00, 0x46, 0x49, 0x49, 0x49, 0x31},// S
{0x00, 0x01, 0x01, 0x7F, 0x01, 0x01},// T
{0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F},// U
{0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F},// V
{0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F},// W
{0x00, 0x63, 0x14, 0x08, 0x14, 0x63},// X
{0x00, 0x07, 0x08, 0x70, 0x08, 0x07},// Y
{0x00, 0x61, 0x51, 0x49, 0x45, 0x43},// Z
{0x00, 0x00, 0x7F, 0x41, 0x41, 0x00},// [
{0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55},// 55
{0x00, 0x00, 0x41, 0x41, 0x7F, 0x00},// ]
{0x00, 0x04, 0x02, 0x01, 0x02, 0x04},// ^
{0x00, 0x40, 0x40, 0x40, 0x40, 0x40},// _
{0x00, 0x00, 0x01, 0x02, 0x04, 0x00},// '
{0x00, 0x20, 0x54, 0x54, 0x54, 0x78},// a
{0x00, 0x7F, 0x48, 0x44, 0x44, 0x38},// b
{0x00, 0x38, 0x44, 0x44, 0x44, 0x20},// c
{0x00, 0x38, 0x44, 0x44, 0x48, 0x7F},// d
{0x00, 0x38, 0x54, 0x54, 0x54, 0x18},// e
{0x00, 0x08, 0x7E, 0x09, 0x01, 0x02},// f
{0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C},// g
{0x00, 0x7F, 0x08, 0x04, 0x04, 0x78},// h
{0x00, 0x00, 0x44, 0x7D, 0x40, 0x00},// i
{0x00, 0x40, 0x80, 0x84, 0x7D, 0x00},// j
{0x00, 0x7F, 0x10, 0x28, 0x44, 0x00},// k
{0x00, 0x00, 0x41, 0x7F, 0x40, 0x00},// l
{0x00, 0x7C, 0x04, 0x18, 0x04, 0x78},// m
{0x00, 0x7C, 0x08, 0x04, 0x04, 0x78},// n
{0x00, 0x38, 0x44, 0x44, 0x44, 0x38},// o
{0x00, 0xFC, 0x24, 0x24, 0x24, 0x18},// p
{0x00, 0x18, 0x24, 0x24, 0x18, 0xFC},// q
{0x00, 0x7C, 0x08, 0x04, 0x04, 0x08},// r
{0x00, 0x48, 0x54, 0x54, 0x54, 0x20},// s
{0x00, 0x04, 0x3F, 0x44, 0x40, 0x20},// t
{0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C},// u
{0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C},// v
{0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C},// w
{0x00, 0x44, 0x28, 0x10, 0x28, 0x44},// x
{0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C},// y
{0x00, 0x44, 0x64, 0x54, 0x4C, 0x44},// z
{0x14, 0x14, 0x14, 0x14, 0x14, 0x14},// horiz lines
};
const unsigned char F8X16[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0
0x00, 0x00, 0x00, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x30, 0x00, 0x00, 0x00, //! 1
0x00, 0x10, 0x0C, 0x06, 0x10, 0x0C, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //" 2
0x40, 0xC0, 0x78, 0x40, 0xC0, 0x78, 0x40, 0x00, 0x04, 0x3F, 0x04, 0x04, 0x3F, 0x04, 0x04, 0x00, //# 3
0x00, 0x70, 0x88, 0xFC, 0x08, 0x30, 0x00, 0x00, 0x00, 0x18, 0x20, 0xFF, 0x21, 0x1E, 0x00, 0x00, //$ 4
0xF0, 0x08, 0xF0, 0x00, 0xE0, 0x18, 0x00, 0x00, 0x00, 0x21, 0x1C, 0x03, 0x1E, 0x21, 0x1E, 0x00, //% 5
0x00, 0xF0, 0x08, 0x88, 0x70, 0x00, 0x00, 0x00, 0x1E, 0x21, 0x23, 0x24, 0x19, 0x27, 0x21, 0x10, //& 6
0x10, 0x16, 0x0E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //' 7
0x00, 0x00, 0x00, 0xE0, 0x18, 0x04, 0x02, 0x00, 0x00, 0x00, 0x00, 0x07, 0x18, 0x20, 0x40, 0x00, //( 8
0x00, 0x02, 0x04, 0x18, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x40, 0x20, 0x18, 0x07, 0x00, 0x00, 0x00, //) 9
0x40, 0x40, 0x80, 0xF0, 0x80, 0x40, 0x40, 0x00, 0x02, 0x02, 0x01, 0x0F, 0x01, 0x02, 0x02, 0x00, //* 10
0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x1F, 0x01, 0x01, 0x01, 0x00, //+ 11
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xB0, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, //, 12
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, //- 13
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, //. 14
0x00, 0x00, 0x00, 0x00, 0x80, 0x60, 0x18, 0x04, 0x00, 0x60, 0x18, 0x06, 0x01, 0x00, 0x00, 0x00, /// 15
0x00, 0xE0, 0x10, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x00, 0x0F, 0x10, 0x20, 0x20, 0x10, 0x0F, 0x00, //0 16
0x00, 0x10, 0x10, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //1 17
0x00, 0x70, 0x08, 0x08, 0x08, 0x88, 0x70, 0x00, 0x00, 0x30, 0x28, 0x24, 0x22, 0x21, 0x30, 0x00, //2 18
0x00, 0x30, 0x08, 0x88, 0x88, 0x48, 0x30, 0x00, 0x00, 0x18, 0x20, 0x20, 0x20, 0x11, 0x0E, 0x00, //3 19
0x00, 0x00, 0xC0, 0x20, 0x10, 0xF8, 0x00, 0x00, 0x00, 0x07, 0x04, 0x24, 0x24, 0x3F, 0x24, 0x00, //4 20
0x00, 0xF8, 0x08, 0x88, 0x88, 0x08, 0x08, 0x00, 0x00, 0x19, 0x21, 0x20, 0x20, 0x11, 0x0E, 0x00, //5 21
0x00, 0xE0, 0x10, 0x88, 0x88, 0x18, 0x00, 0x00, 0x00, 0x0F, 0x11, 0x20, 0x20, 0x11, 0x0E, 0x00, //6 22
0x00, 0x38, 0x08, 0x08, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, //7 23
0x00, 0x70, 0x88, 0x08, 0x08, 0x88, 0x70, 0x00, 0x00, 0x1C, 0x22, 0x21, 0x21, 0x22, 0x1C, 0x00, //8 24
0x00, 0xE0, 0x10, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x00, 0x00, 0x31, 0x22, 0x22, 0x11, 0x0F, 0x00, //9 25
0x00, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, //: 26
0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x60, 0x00, 0x00, 0x00, 0x00, //; 27
0x00, 0x00, 0x80, 0x40, 0x20, 0x10, 0x08, 0x00, 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x00, //< 28
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x00, //= 29
0x00, 0x08, 0x10, 0x20, 0x40, 0x80, 0x00, 0x00, 0x00, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, //> 30
0x00, 0x70, 0x48, 0x08, 0x08, 0x08, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x30, 0x36, 0x01, 0x00, 0x00, //? 31
0xC0, 0x30, 0xC8, 0x28, 0xE8, 0x10, 0xE0, 0x00, 0x07, 0x18, 0x27, 0x24, 0x23, 0x14, 0x0B, 0x00, //@ 32
0x00, 0x00, 0xC0, 0x38, 0xE0, 0x00, 0x00, 0x00, 0x20, 0x3C, 0x23, 0x02, 0x02, 0x27, 0x38, 0x20, //A 33
0x08, 0xF8, 0x88, 0x88, 0x88, 0x70, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x11, 0x0E, 0x00, //B 34
0xC0, 0x30, 0x08, 0x08, 0x08, 0x08, 0x38, 0x00, 0x07, 0x18, 0x20, 0x20, 0x20, 0x10, 0x08, 0x00, //C 35
0x08, 0xF8, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x10, 0x0F, 0x00, //D 36
0x08, 0xF8, 0x88, 0x88, 0xE8, 0x08, 0x10, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x23, 0x20, 0x18, 0x00, //E 37
0x08, 0xF8, 0x88, 0x88, 0xE8, 0x08, 0x10, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x03, 0x00, 0x00, 0x00, //F 38
0xC0, 0x30, 0x08, 0x08, 0x08, 0x38, 0x00, 0x00, 0x07, 0x18, 0x20, 0x20, 0x22, 0x1E, 0x02, 0x00, //G 39
0x08, 0xF8, 0x08, 0x00, 0x00, 0x08, 0xF8, 0x08, 0x20, 0x3F, 0x21, 0x01, 0x01, 0x21, 0x3F, 0x20, //H 40
0x00, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //I 41
0x00, 0x00, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x00, 0xC0, 0x80, 0x80, 0x80, 0x7F, 0x00, 0x00, 0x00, //J 42
0x08, 0xF8, 0x88, 0xC0, 0x28, 0x18, 0x08, 0x00, 0x20, 0x3F, 0x20, 0x01, 0x26, 0x38, 0x20, 0x00, //K 43
0x08, 0xF8, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x20, 0x30, 0x00, //L 44
0x08, 0xF8, 0xF8, 0x00, 0xF8, 0xF8, 0x08, 0x00, 0x20, 0x3F, 0x00, 0x3F, 0x00, 0x3F, 0x20, 0x00, //M 45
0x08, 0xF8, 0x30, 0xC0, 0x00, 0x08, 0xF8, 0x08, 0x20, 0x3F, 0x20, 0x00, 0x07, 0x18, 0x3F, 0x00, //N 46
0xE0, 0x10, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x0F, 0x10, 0x20, 0x20, 0x20, 0x10, 0x0F, 0x00, //O 47
0x08, 0xF8, 0x08, 0x08, 0x08, 0x08, 0xF0, 0x00, 0x20, 0x3F, 0x21, 0x01, 0x01, 0x01, 0x00, 0x00, //P 48
0xE0, 0x10, 0x08, 0x08, 0x08, 0x10, 0xE0, 0x00, 0x0F, 0x18, 0x24, 0x24, 0x38, 0x50, 0x4F, 0x00, //Q 49
0x08, 0xF8, 0x88, 0x88, 0x88, 0x88, 0x70, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x03, 0x0C, 0x30, 0x20, //R 50
0x00, 0x70, 0x88, 0x08, 0x08, 0x08, 0x38, 0x00, 0x00, 0x38, 0x20, 0x21, 0x21, 0x22, 0x1C, 0x00, //S 51
0x18, 0x08, 0x08, 0xF8, 0x08, 0x08, 0x18, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x00, 0x00, //T 52
0x08, 0xF8, 0x08, 0x00, 0x00, 0x08, 0xF8, 0x08, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x20, 0x1F, 0x00, //U 53
0x08, 0x78, 0x88, 0x00, 0x00, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x07, 0x38, 0x0E, 0x01, 0x00, 0x00, //V 54
0xF8, 0x08, 0x00, 0xF8, 0x00, 0x08, 0xF8, 0x00, 0x03, 0x3C, 0x07, 0x00, 0x07, 0x3C, 0x03, 0x00, //W 55
0x08, 0x18, 0x68, 0x80, 0x80, 0x68, 0x18, 0x08, 0x20, 0x30, 0x2C, 0x03, 0x03, 0x2C, 0x30, 0x20, //X 56
0x08, 0x38, 0xC8, 0x00, 0xC8, 0x38, 0x08, 0x00, 0x00, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x00, 0x00, //Y 57
0x10, 0x08, 0x08, 0x08, 0xC8, 0x38, 0x08, 0x00, 0x20, 0x38, 0x26, 0x21, 0x20, 0x20, 0x18, 0x00, //Z 58
0x00, 0x00, 0x00, 0xFE, 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x7F, 0x40, 0x40, 0x40, 0x00, //[ 59
0x00, 0x0C, 0x30, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x38, 0xC0, 0x00, //\ 60
0x00, 0x02, 0x02, 0x02, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x40, 0x7F, 0x00, 0x00, 0x00, //] 61
0x00, 0x00, 0x04, 0x02, 0x02, 0x02, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //^ 62
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, //_ 63
0x00, 0x02, 0x02, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //` 64
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x19, 0x24, 0x22, 0x22, 0x22, 0x3F, 0x20, //a 65
0x08, 0xF8, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x11, 0x20, 0x20, 0x11, 0x0E, 0x00, //b 66
0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0x20, 0x11, 0x00, //c 67
0x00, 0x00, 0x00, 0x80, 0x80, 0x88, 0xF8, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0x10, 0x3F, 0x20, //d 68
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x1F, 0x22, 0x22, 0x22, 0x22, 0x13, 0x00, //e 69
0x00, 0x80, 0x80, 0xF0, 0x88, 0x88, 0x88, 0x18, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //f 70
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x6B, 0x94, 0x94, 0x94, 0x93, 0x60, 0x00, //g 71
0x08, 0xF8, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x3F, 0x21, 0x00, 0x00, 0x20, 0x3F, 0x20, //h 72
0x00, 0x80, 0x98, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //i 73
0x00, 0x00, 0x00, 0x80, 0x98, 0x98, 0x00, 0x00, 0x00, 0xC0, 0x80, 0x80, 0x80, 0x7F, 0x00, 0x00, //j 74
0x08, 0xF8, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x20, 0x3F, 0x24, 0x02, 0x2D, 0x30, 0x20, 0x00, //k 75
0x00, 0x08, 0x08, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x00, 0x00, //l 76
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x20, 0x3F, 0x20, 0x00, 0x3F, 0x20, 0x00, 0x3F, //m 77
0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x3F, 0x21, 0x00, 0x00, 0x20, 0x3F, 0x20, //n 78
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x20, 0x1F, 0x00, //o 79
0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x80, 0xFF, 0xA1, 0x20, 0x20, 0x11, 0x0E, 0x00, //p 80
0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x0E, 0x11, 0x20, 0x20, 0xA0, 0xFF, 0x80, //q 81
0x80, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x20, 0x20, 0x3F, 0x21, 0x20, 0x00, 0x01, 0x00, //r 82
0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x33, 0x24, 0x24, 0x24, 0x24, 0x19, 0x00, //s 83
0x00, 0x80, 0x80, 0xE0, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x00, 0x00, //t 84
0x80, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x1F, 0x20, 0x20, 0x20, 0x10, 0x3F, 0x20, //u 85
0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x01, 0x0E, 0x30, 0x08, 0x06, 0x01, 0x00, //v 86
0x80, 0x80, 0x00, 0x80, 0x00, 0x80, 0x80, 0x80, 0x0F, 0x30, 0x0C, 0x03, 0x0C, 0x30, 0x0F, 0x00, //w 87
0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x20, 0x31, 0x2E, 0x0E, 0x31, 0x20, 0x00, //x 88
0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x81, 0x8E, 0x70, 0x18, 0x06, 0x01, 0x00, //y 89
0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x21, 0x30, 0x2C, 0x22, 0x21, 0x30, 0x00, //z 90
0x00, 0x00, 0x00, 0x00, 0x80, 0x7C, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x40, 0x40, //{ 91
0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, //| 92
0x00, 0x02, 0x02, 0x7C, 0x80, 0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x3F, 0x00, 0x00, 0x00, 0x00, //} 93
0x00, 0x06, 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //~ 94
};
void oled_display_info();
void connection_mqtt_server();
void LEDStartInfo(int delay_ms);
String ip2Str(IPAddress ip);
//I2C初始化
void I2C_Init()
{
SDA_OUT;
SCL_OUT;
I2C_SDA_H;
I2C_SCL_H;
}
//I2C开始
void I2C_Start()
{
I2C_SCL_H;
I2C_SDA_H;
I2C_SDA_L;
I2C_SCL_L;
}
//I2C结束
void I2C_Stop()
{
I2C_SCL_L;
I2C_SDA_L;
I2C_SCL_H;
I2C_SDA_H;
}
//检查应答信号
void I2C_Wait_Ack()
{
I2C_SCL_H;
I2C_SCL_L;
}
//I2C写入一个字节
void Write_I2C_Byte(unsigned char IIC_Byte)
{
unsigned char i;
unsigned char m, da;
da = IIC_Byte;
I2C_SCL_L;
for (i = 0; i < 8; i++)
{
m = da;
m = m & 0x80;
if (m == 0x80)
I2C_SDA_H;
else
I2C_SDA_L;
da = da << 1;
I2C_SCL_H;
I2C_SCL_L;
}
}
void Write_I2C_Command(unsigned char IIC_Command)
{
I2C_Start();
Write_I2C_Byte(0x78); //Slave address,SA0=0
I2C_Wait_Ack();
Write_I2C_Byte(0x00); //write command
I2C_Wait_Ack();
Write_I2C_Byte(IIC_Command);
I2C_Wait_Ack();
I2C_Stop();
}
// IIC Write Data
void Write_I2C_Data(unsigned char IIC_Data)
{
I2C_Start();
Write_I2C_Byte(0x78); //D/C#=0; R/W#=0
I2C_Wait_Ack();
Write_I2C_Byte(0x40); //write data
I2C_Wait_Ack();
Write_I2C_Byte(IIC_Data);
I2C_Wait_Ack();
I2C_Stop();
}
void OLED_WR_Byte(unsigned char dat, unsigned char cmd)
{
if (cmd)
{
Write_I2C_Data(dat);
}
else
{
Write_I2C_Command(dat);
}
}
//坐标设置
void OLED_Set_Pos(u8 x, u8 y)
{
OLED_WR_Byte(0xb0 + y, OLED_CMD);
OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
OLED_WR_Byte((x & 0x0f), OLED_CMD);
}
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
void OLED_Clear(void)
{
u8 i, n;
for (i = 0; i < 8; i++)
{
OLED_WR_Byte (0xb0 + i, OLED_CMD); //设置页地址(0~7)
OLED_WR_Byte (0x00, OLED_CMD); //设置显示位置—列低地址
OLED_WR_Byte (0x10, OLED_CMD); //设置显示位置—列高地址
for (n = 0; n < 128; n++)OLED_WR_Byte(0, OLED_DATA);
} //更新显示
}
// 局部刷新 x:0~127 y:0 ~ 3
// 部分刷新 例如 需要刷新OLED 最后一行OLED_Clear_Local(0,3);
void OLED_Clear_Local(u8 x , u8 y)
{
u8 i, n;
for (i = y; i < 4; i++)
{
OLED_WR_Byte (0xb0 + i, OLED_CMD); //设置页地址(0~7)
OLED_WR_Byte (0x00, OLED_CMD); //设置显示位置—列低地址
OLED_WR_Byte (0x10, OLED_CMD); //设置显示位置—列高地址
OLED_Set_Pos(x, i);
for (n = x; n < 128; n++)OLED_WR_Byte(0, OLED_DATA);
} //更新显示
}
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t Char_Size)
{
unsigned char c = 0, i = 0;
c = chr - ' '; //得到偏移后的值
if (x > Max_Column - 1) {
x = 0;
y = y + 2;
}
if (Char_Size == 16)
{
OLED_Set_Pos(x, y);
for (i = 0; i < 8; i++)
{
OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
}
OLED_Set_Pos(x, y + 1);
for (i = 0; i < 8; i++) {
OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
}
}
else
{
OLED_Set_Pos(x, y);
for (i = 0; i < 6; i++)
OLED_WR_Byte(F6x8[c][i], OLED_DATA);
}
}
//-----------------------------------
//|x→[0,127] |
//| OLED显示坐标 |
//|y 范围 |
//|↓ |
//|[0,3] |
//-----------------------------------
void OLED_ShowString(uint8_t x, uint8_t y, uint8_t *chr, uint8_t Char_Size)
{
unsigned char j = 0;
while (chr[j] != '\0')
{
OLED_ShowChar(x, y, chr[j], Char_Size);
x += 8;
if (x > 120)
{
x = 0; y += 2;
}
j++;
}
}
uint32_t oled_pow(uint8_t m, uint8_t n)
{
uint32_t result = 1;
while (n--)result *= m;
return result;
}
void OLED_ShowNum(uint8_t x, uint8_t y, uint32_t num, uint8_t len, uint8_t size2)
{
uint8_t t, temp;
uint8_t enshow = 0;
for (t = 0; t < len; t++)
{
temp = (num / oled_pow(10, len - t - 1)) % 10;
if (enshow == 0 && t < (len - 1))
{
if (temp == 0)
{
OLED_ShowChar(x + (size2 / 2)*t, y, ' ', size2);
continue;
} else
enshow = 1;
}
OLED_ShowChar(x + (size2 / 2)*t, y, temp + '0', size2);
}
}
void OLED_Init(void)
{
I2C_Init(); //初始化I2C 管脚输出高电平
delay(200);
OLED_WR_Byte(0xAE, OLED_CMD); //关闭显示
OLED_WR_Byte(0x40, OLED_CMD); //---set low column address
OLED_WR_Byte(0xB0, OLED_CMD); //---set high column address
OLED_WR_Byte(0xC8, OLED_CMD); //-not offset
OLED_WR_Byte(0x81, OLED_CMD); //设置对比度
OLED_WR_Byte(0xff, OLED_CMD);
OLED_WR_Byte(0xa1, OLED_CMD); //段重定向设置
OLED_WR_Byte(0xa6, OLED_CMD); //
OLED_WR_Byte(0xa8, OLED_CMD); //设置驱动路数
OLED_WR_Byte(0x1f, OLED_CMD);
OLED_WR_Byte(0xd3, OLED_CMD);
OLED_WR_Byte(0x00, OLED_CMD);
OLED_WR_Byte(0xd5, OLED_CMD);
OLED_WR_Byte(0xf0, OLED_CMD);
OLED_WR_Byte(0xd9, OLED_CMD);
OLED_WR_Byte(0x22, OLED_CMD);
OLED_WR_Byte(0xda, OLED_CMD);
OLED_WR_Byte(0x02, OLED_CMD);
OLED_WR_Byte(0xdb, OLED_CMD);
OLED_WR_Byte(0x49, OLED_CMD);
OLED_WR_Byte(0x8d, OLED_CMD);
OLED_WR_Byte(0x14, OLED_CMD);
OLED_WR_Byte(0xaf, OLED_CMD);
OLED_Clear();
}
/************************* MQTT SET *********************************/
const char* mqtt_ServerIP = "192.168.1.195";
const char* topic = "mqtt_NodeMucu";
const char* client_Id = "mqtt_client_NodeMcu_Device_01";
const char* subTopic = "NodeMcu_Rec_Msg";
const int mqtt_ServerPort = 1883;
int relay = D6;
int DHT_01_pin = D4;
WiFiClient espClient;
PubSubClient mqttClient(espClient);
SimpleDHT11 dht11_01(DHT_01_pin);
StaticJsonDocument<200> json;
bool wifiConnectState = false;
long upLoadMsgTime = 0;
void setup() {
Serial.begin(115200);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(relay, OUTPUT);
delay(200);
digitalWrite(relay, LOW);
OLED_Init();
WIFISmartConfig();
mqttClient.setServer(mqtt_ServerIP, mqtt_ServerPort);
mqttClient.setCallback(mqtt_callback);
connection_mqtt_server();
}
byte temperature_01 = 0, humidity_01 = 0;
String JSONmessageBuffer = "";
long reflashTime = 0 ;
int reflashFlag = 0;
void loop() {
upLoadMsgTime = millis();
reflashTime = millis();
mqttClient.loop();
if ((reflashTime % 6000 == 0) || reflashFlag == 1) //每6s刷新一次屏幕 立即刷新标志位
{
reflashFlag = 0;
oled_display_info();
}
if (upLoadMsgTime % 5000 == 0) //5s采集一次数据并上传到服务器
{
if (dht11_01.read(&temperature_01, &humidity_01, NULL) == SimpleDHTErrSuccess)
{
read_temp = (int)temperature_01;
read_hum = (int)humidity_01;
JsonObject json_root = json.to();
json_root["roomLocation"] = "LivingRoom";
JsonObject device_name = json_root.createNestedObject("DeviceName"); //创建Obj
JsonObject DHT11_01_values = device_name.createNestedObject("DHT11_01");
DHT11_01_values["Temperature:"] = read_temp;
DHT11_01_values["Humidity:"] = read_hum;
JsonObject Relay_01_state = device_name.createNestedObject("Relay_01");
Relay_01_state["State"] = relayState;
serializeJson(json, JSONmessageBuffer);
Serial.println(JSONmessageBuffer);
mqttClient.publish(topic, JSONmessageBuffer.c_str()); // String.c_str() String转化为char[]
JSONmessageBuffer = "";
}
}
}
void WIFISmartConfig() { //wifi配置
int testConnectCount = 0;
Serial.println("\nAuto for connection ...");
while (WiFi.status() != WL_CONNECTED) {
if (!wifiConnectState) {
LEDStartInfo(500);
testConnectCount++;
if (testConnectCount >= 10 ) {
wifiConnectState = true;
Serial.println("Linked Faied ! Jump to SmartConfig...");
}
Serial.println("Linking ...");
} else {
WiFi.mode(WIFI_STA); //设置WIFI模块为STA模式
Serial.println("Waiting for connection ...");
WiFi.beginSmartConfig();
while (true) {
Serial.print(".");
LEDStartInfo(500);
if (WiFi.smartConfigDone()) {
Serial.println("\nSmartConfig Successed !");
for (int i = 0; i < 20; i++) {
LEDStartInfo(200);
}
break;
}
}
}
}
Serial.printf("\nSSID: %s", WiFi.SSID().c_str());//输出账号
Serial.printf("\nPassword: %s", WiFi.psk().c_str());//输出密码
Serial.printf("\nIP address: "); Serial.print(WiFi.localIP()); //输出IP地址
ipinfo = "IP:" + ip2Str(WiFi.localIP());
}
void connection_mqtt_server() {
while (!mqttClient.connected()) {
Serial.println("\nAttempting MQTT connection...");
if (mqttClient.connect(client_Id, "admin", "public")) { // 连接成功
Serial.println("MQTT Server Connceted ! ");
mqttClient.subscribe(subTopic); // 订阅主题
} else { // 连接失败
Serial.println("failed, rc=");
Serial.print(mqttClient.state());
}
}
}
StaticJsonDocument<200> docParser;
void mqtt_callback(char* topic, byte* payload, unsigned int length) {
char receiveDataChar[length];
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] \n");
for (int i = 0; i < length; i++)
{
receiveDataChar[i] = (char)payload[i];
}
deserializeJson(docParser, receiveDataChar);
const char* Relay_01_State = docParser["Relay_01_State"];
relayState = Relay_01_State;
if (strcmp("ON", relayState.c_str()) == 0)
{
digitalWrite(relay, HIGH);
reflashFlag = 1; //OLED 刷新
Serial.println(Relay_01_State);
}
if (strcmp("OFF", relayState.c_str()) == 0)
{
digitalWrite(relay, LOW);
reflashFlag = 1;//OLED 刷新
Serial.println(Relay_01_State);
}
}
void LEDStartInfo(int delay_ms) { //LED闪烁函数
digitalWrite(LED_BUILTIN, 0);
delay(delay_ms);
digitalWrite(LED_BUILTIN, 1);
delay(delay_ms);
}
String ip2Str(IPAddress ip) { //IP地址转字符串
String s = "";
for (int i = 0; i < 4; i++) {
s += i ? "." + String(ip[i]) : String(ip[i]);
}
return s;
}
void oled_display_info()
{
OLED_ShowString(0, 0, (uint8_t *)ipinfo.c_str() , 8);
delay(200);
OLED_ShowString(0, 1, (uint8_t *)"Temp:" , 8);
OLED_ShowNum(45, 1, read_temp, 2, 15);
OLED_ShowString(60, 1, (uint8_t *)"*C" , 8);
delay(200);
OLED_ShowString(0, 2, (uint8_t *)"Hum:" , 8);
OLED_ShowNum(35, 2, read_hum, 2, 15);
OLED_ShowString(50, 2, (uint8_t *)"%" , 8);
delay(200);
OLED_ShowString(0, 3, (uint8_t *)"RelayState:" , 8);
delay(200);
OLED_Clear_Local(90, 3);
OLED_ShowString(90, 3, (uint8_t *)relayState.c_str() , 8);
}
四、作品效果
1、关闭继电器
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2、打开继电器
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