电压测量
/*
作者：极客工坊-迷你强
时间：2012年6月19日
IDE版本号：1.0.1
发布地址：[url=http://www.geek-workshop.com]www.geek-workshop.com[/url]
作用:介绍使用arduino模拟口测量电压，作为0-5V电压表使用实验
*/
float temp; //创建一个浮点型变量temp作为存储空间准备存放数据
void setup()
{
pinMode(2,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
Serial.begin(9600); //使用9600的波特率进行串口通讯
}
void loop()
{
int V1 = analogRead(1);
//从A0口读取电压数据存入刚刚创建整数型变量V1，模拟口的电压测量范围为0-5V 返回的值为0-1024
float vol = V1*(5.0 / 1023.0);
//我们将 V1的值换算成实际电压值存入浮点型变量 vol
if (vol == temp)
//这部分的判断是用来过滤重复的数据，只有本次的电压值和上次不一时才进行输出
{
temp = vol; //比较完成后，将这次的值存入比对比用的变量temp
}
else
{
Serial.print(vol); //串口输出电压值，并且不换行
Serial.println(" V"); //串口输出字符V，并且换行
temp = vol;
if(vol>1){
digitalWrite(2,HIGH); //设定PIN5脚为LOW = 0V
}else{
digitalWrite(2,LOW); //设定PIN5脚为LOW = 0V
}
delay(1000); //输出完成后等待1秒钟，用于控制数据的刷新速度。
}
}
#include
#include
#include
int valread;
String clientMsg ="";
String flag1 ="N";
int ledPin1=2; //设定控制LED的数字IO脚
String flag2 ="N";
int ledPin2=3; //设定控制LED的数字IO脚
String flag3 ="N";
int ledPin3=4; //设定控制LED的数字IO脚
String flag4 ="N";
int ledPin4=5; //设定控制LED的数字IO脚
String flag5 ="N";
int ledPin5=6; //设定控制LED的数字IO脚
String flag6 ="N";
int ledPin6=7; //设定控制LED的数字IO脚
EthernetClient client;
// Enter a MAC address, IP address and Portnumber for your Server below.
// The IP address will be dependent on your local network:
byte mac[] = { 0x02, 0xAA, 0xBB, 0xCC, 0xDA, 0x02 };
IPAddress serverIP(172,25,60,110);
int serverPort=56788;
// Initialize the Ethernet server library
// with the IP address and port you want to use
EthernetServer server(serverPort);
void setup()
{
pinMode(ledPin1,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin2,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin3,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin4,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin5,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin6,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
// start the serial for debugging
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, serverIP);
server.begin();
Serial.println("Server started");//log
}
void loop()
{
// listen for incoming clients
client = server.available();
if (client) {
if (client.connected()) {
while (client.available()) {
char c = client.read();
//Serial.print(c);
clientMsg+=c;//store the recieved chracters in a string
//if the character is an "end of line" the whole message is recieved
if (c == '\n') {
if(clientMsg.indexOf('1')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin1,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('A')>-1){
digitalWrite(ledPin1,LOW); //设定PIN5脚为LOW = 0V
}
if(clientMsg.indexOf('2')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin2,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('B')>-1){
digitalWrite(ledPin2,LOW); //设定PIN5脚为LOW = 0V
}
if(clientMsg.indexOf('3')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin3,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('C')>-1){
digitalWrite(ledPin3,LOW); //设定PIN5脚为LOW = 0V
}
if(clientMsg.indexOf('4')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin4,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('D')>-1){
digitalWrite(ledPin4,LOW); //设定PIN5脚为LOW = 0V
}
if(clientMsg.indexOf('5')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin5,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('E')>-1){
digitalWrite(ledPin5,LOW); //设定PIN5脚为LOW = 0V
}
if(clientMsg.indexOf('6')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin6,HIGH); //设定PIN5脚为HIGH = 5V左右
}else if(clientMsg.indexOf('F')>-1){
digitalWrite(ledPin6,LOW); //设定PIN5脚为LOW = 0V
}
clientMsg ="";
}
}
}
// give the Client time to receive the data
delay(1);
// close the connection:
client.stop();
}
valread=analogRead(1);
if(valread<150){
digitalWrite(ledPin1,LOW); //设定PIN5脚为LOW = 0V
Serial.println(valread);
}
delay(200);
} 添加返回值
#include
#include
#include
int valread;
String clientMsg ="";
String flag1 ="N";
int ledPin1=2; //设定控制LED的数字IO脚
String flag2 ="N";
int ledPin2=3; //设定控制LED的数字IO脚
String flag3 ="N";
int ledPin3=4; //设定控制LED的数字IO脚
String flag4 ="N";
int ledPin4=5; //设定控制LED的数字IO脚
String flag5 ="N";
int ledPin5=6; //设定控制LED的数字IO脚
String flag6 ="N";
int ledPin6=7; //设定控制LED的数字IO脚
EthernetClient client;
// Enter a MAC address, IP address and Portnumber for your Server below.
// The IP address will be dependent on your local network:
byte mac[] = { 0x02, 0xAA, 0xBB, 0xCC, 0xDA, 0x02 };
IPAddress serverIP(172,25,60,110);
int serverPort=56788;
// Initialize the Ethernet server library
// with the IP address and port you want to use
EthernetServer server(serverPort);
void setup()
{
pinMode(ledPin1,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin2,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin3,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin4,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin5,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
pinMode(ledPin6,OUTPUT);//设定数字IO口的模式，OUTPUT 为输出
// start the serial for debugging
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, serverIP);
server.begin();
Serial.println("Server started");//log
}
void loop()
{
// listen for incoming clients
client = server.available();
if (client) {
if (client.connected()) {
while (client.available()) {
char c = client.read();
//Serial.print(c);
clientMsg+=c;//store the recieved chracters in a string
//if the character is an "end of line" the whole message is recieved
if (c == '\n') {
if(clientMsg.indexOf('1')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin1,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line1 open");
}else if(clientMsg.indexOf('A')>-1){
digitalWrite(ledPin1,LOW); //设定PIN5脚为LOW = 0V
client.print("line1 close");
}
if(clientMsg.indexOf('2')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin2,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line2 open");
}else if(clientMsg.indexOf('B')>-1){
digitalWrite(ledPin2,LOW); //设定PIN5脚为LOW = 0V
client.print("line2 close");
}
if(clientMsg.indexOf('3')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin3,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line3 open");
}else if(clientMsg.indexOf('C')>-1){
digitalWrite(ledPin3,LOW); //设定PIN5脚为LOW = 0V
client.print("line3 close");
}
if(clientMsg.indexOf('4')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin4,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line4 open");
}else if(clientMsg.indexOf('D')>-1){
digitalWrite(ledPin4,LOW); //设定PIN5脚为LOW = 0V
client.print("line4 close");
}
if(clientMsg.indexOf('5')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin5,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line5 open");
}else if(clientMsg.indexOf('E')>-1){
digitalWrite(ledPin5,LOW); //设定PIN5脚为LOW = 0V
client.print("line5 close");
}
if(clientMsg.indexOf('6')>-1){
//Serial.println("test123");//log
digitalWrite(ledPin6,HIGH); //设定PIN5脚为HIGH = 5V左右
client.print("line6 open");
}else if(clientMsg.indexOf('F')>-1){
digitalWrite(ledPin6,LOW); //设定PIN5脚为LOW = 0V
client.print("line6 close");
}
clientMsg ="";
}
}
}
// give the Client time to receive the data
delay(1);
// close the connection:
client.stop();
}
valread=analogRead(1);
if(valread<150){
digitalWrite(ledPin1,LOW); //设定PIN5脚为LOW = 0V
Serial.println(valread);
}
delay(200);
}