How to establish UART communication between Raspberry Pi4 and Arduino UNO using TX/RX pins?
I’m trying to establish UART communication between a Raspberry Pi 4 and an Arduino UNO via TX/RX pins. The goal is to send a signal from the Arduino when a button is pressed and receive it on the Raspberry Pi to control an LED.
How to establish UART communication between Raspberry Pi4 and Arduino UNO using TX/RX pins?
I’m trying to establish UART communication between a Raspberry Pi 4 and an Arduino UNO via TX/RX pins. The goal is to send a signal from the Arduino when a button is pressed and receive it on the Raspberry Pi to control an LED.