Receive sensor data from esp8266 and show on my app

[Juan_Antonio]

Do you want to use network or Bluetooth?

ESP32. MQTT. Broker. Publish. Subscribe. ThingSpeak

Hello friends, I’ll write in this topic about MQTT with ESP32. Publish. Subscribe. Broker. Mosquitto,… 0.- Board D1 R32 ESP32. This is a cheap card ($ 5) with the dimensions and shape of the Arduino UNO, but with the ESP32. I used this card in the ESP32 Wifi and ESP32 BLE tutorials. [esp322b] Search images: D1 R2 ESP32 This card has classic Bluetooth, BLE, WiFi, ADC, DAC, and more features. This card can be programmed with the Arduino IDE. [comparativa]

App Inventor sends information to ESP8266 by WiFi

Hello friends, 1.- Send message and view it on an LCD screen. 1.- You write a message in TexBox1 and it is sent by WiFi to ESP8266, that message is shown on the LCD screen. 2.- If you write on5, off5, on6, off6, LEDs 5 or 6 turn on/off. [esp8266_kio4] ``` // Juan A. Villalpando. // KIO4.COM // Send a message // from App Inventor #include <ESP8266WiFi.h> const char* ssid = "Name_Net_WiFi"; const char* password = "Password_WiFi"; // Static IP. IPAddress local_IP(192, 168, 1, 12); …