Tag: UART

Arduino: ESP32 Hardware Serial2 Example

Sankar Cheppali | January 21, 2021

ESP32 has three hardware UART controllers (Serial ports) , UART0, UART1 and UART2. All three UART controllers are independent and fully featured (configurable parity bit, baud rate etc.).

Arduino

Arduino : Connecting Arduino UNO with ESP8266

Sankar Cheppali | April 13, 2018

We have already seen how to connect Arduino UNO with NodeMCU/ESP8266 over UART and send data to MQTT broker here. That project uses lua to program the NodeMCU