import serial
import time
from openpyxl import Workbook
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
temp_send = '01 03 00 00 00 02 C4 0B'
ser = serial.Serial("COM4", 9600)
temp_send = bytes.fromhex(temp_send)
print(temp_send)
# Create a new workbook
wb = Workbook()
# Select the active sheet
ws = wb.active
# Write headers
ws.append(["date", "temperature", "humidity"])
# Lists to store the data
dates = []
temperatures = []
humidities = []
fig, ax = plt.subplots()
def update_chart(frame):
if ser.is_open:
print('port open ok')
ser.write(temp_send)
time.sleep(0.1)
# 获取返回的缓冲data,获取的是buffer_data的长度 9
buffer_data = ser.in_waiting
# print(buffer_data, 'buffer_data')
if buffer_data:
# 返回的数据为2进制：b'\x01\x03\x04\x01\x08\x022\xfa\xb8'
return_data = ser.read(buffer_data)
# print('返回的数据2进制:', return_data)
# 二进制转换为16进制：010304010802307b79
return_data_hex = str(return_data.hex())
print('返回的数据转换为16进制:', return_data_hex)
# 对返回的数据进行解析，获取温度和湿度数据
humidity = int(return_data_hex[6:10], 16) / 10
temperature = int(return_data_hex[10:14], 16) / 10
# Get current date
current_date = time.strftime("%Y/%m/%d %H%M")
# Write data to Excel
ws.append([current_date, temperature, humidity])
# Append data to lists
dates.append(current_date)
temperatures.append(temperature)
humidities.append(humidity)
# Save the workbook
wb.save('0.xlsx')
print("当前湿度为：", humidity)
print("当前温度为：", temperature)
# Clear the plot
ax.clear()
# Plot the data
ax.plot(dates, temperatures, label='Temperature')
ax.plot(dates, humidities, label='Humidity')
ax.set_xlabel('Date')
ax.set_ylabel('Value')
ax.set_title('Temperature and Humidity Data')
ax.legend()
plt.xticks(rotation=45)
plt.tight_layout()
# Update the chart every 1 second
ani = FuncAnimation(fig, update_chart, interval=1000)
plt.show()
