Blink your leds!
Heltec WiFi LoRa ESP32 – pinout diagram Follow the manufacturer site if you are looking for another version. The original PDF pinout diagram can be downloaded from WIFI_LoRa_32_V2 or download the JPG pinout diagram file in high resolution
In this article we will discover the temperature OneWire DS18B20 temperature sensor, available also in a waterproof version. The DS18B20 is a so called 1-wire digital temperature sensor. “1-wire” make this sensor really cool and you can connect multiple devices together, utilizing only
Diagram Pin Pin Function ESP-8266 Pin TX TXD TXD RX RXD RXD A0 Analog input, max 3.3V input A0 D0 IO GPIO16 D1 IO, SCL GPIO5 D2 IO, SDA GPIO4 D3 IO,10k Pull-up GPIO0 D4 IO, 10k pull-up, BUILTIN_LED GPIO2