sending sensor data over a socket-CodePudding

I wanna send dht11's temperature and humidity data from raspberrypi to pc.

but when I run this code:

import RPi.GPIO as GPIO
import dht11
import time
import datetime
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BCM)
instance = dht11.DHT11(pin=18)

import socket

HOST = '192.168.35.129'

PORT = 9999        
 
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

server_socket.bind((HOST, PORT))

server_socket.listen()

client_socket, addr = server_socket.accept()


print('Connected by', addr)


try:
        while True:
                result = instance.read()
                if result.is_valid():
                        print("Last valid input: "   str(datetime.datetime.now()))
                        print("Temperature: %-3.1f C" % result.temperature)
                        print("Humidity: %-3.1f %%" % result.humidity)
                        client_socket.send(result)
                        time.sleep(6)

except KeyboardInterrupt:
        print("Cleanup")
        GPIO.cleanup()


client_socket.close()
server_socket.close()

I get this error:

Traceback (most recent call last):
 File "/home/pi/Documents/testsev.py", line 36, in <module>
   client_socket.send(result)
 TypeError: a bytes-like object is required, not 'DHT11Result'

I think I have to convert result to form of bytes, but I don't how to do it.

How can I successfully send this data to server and does this code got anything to be changed to be run well?

CodePudding user response：

You need to serialize the data

For example, using JSON

import json

if result.is_valid():
    data = {'temp': result.temperature, 'humidity': result.humidity}
    client_socket.send(json.dumps(data).encode('utf-8'))