樹莓派代碼：
from flask import Flask, render_template import socket import threading app = Flask(__name__) adc_value = 0 # 接收tcp數據 def receive_tcp_data(): global adc_value # 從ESP8266接收ADC數據 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.bind(('0.0.0.0', 5000)) sock.listen(1) while True: conn, addr = sock.accept() data = conn.recv(1024) adc_value = 70 - int(data.decode()) # print(conn,addr,adc_value) conn.close() @app.route('/') def index(): global adc_value # 在Web頁面上顯示ADC數據 return render_template('index2.html', adc_data=adc_value) # Web服務線程 def start_web_server(): app.run(host='0.0.0.0', port=8888) if __name__ == '__main__': # 啓動接收tcp數據的線程 udp_thread = threading.Thread(target=receive_tcp_data) udp_thread.daemon = True udp_thread.start() # 啓動接收tcp數據的線程 flask_thread = threading.Thread(target=start_web_server) flask_thread.daemon = True flask_thread.start() while True: pass
index2.html
<!DOCTYPE html> <html> <head> <title>ADC Data Display</title> </head> <body> <h1>ADC Data: {{ adc_data }}</h1> </body> </html>
esp8266 使用arduino
#include <ESP8266WiFi.h> #include <WiFiClient.h> const char* ssid = "litianmenzhenbu"; const char* password = "LT12345678"; const char* serverIP = "192.168.0.110"; // 樹莓派的IP地址 const int serverPort = 5000; // 樹莓派上Flask服務的端口號 void setup() { Serial.begin(115200); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(1000); Serial.println("Connecting to WiFi..."); } Serial.println("Connected to WiFi"); // 連接到樹莓派上的Flask服務 WiFiClient client; if (client.connect(serverIP, serverPort)) { Serial.println("Connected to server"); } } void loop() { // 模擬讀取ADC值，此處可替換爲實際讀取ADC的代碼 int adcValue = analogRead(A0); // 發送ADC值到樹莓派上的Flask服務 WiFiClient client; if (client.connect(serverIP, serverPort)) { String data = String(adcValue); client.print(data); client.flush(); client.stop(); } delay(100); }