It’s a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip.

The idea is to make GPIO proxy. The following description is in the context of its use in Hubitat/Smartthings ecosystem. The Arduino sketch take commands from serial port. As example of a command is ...

If outputs have a retain flag set, the output will follow the MQTT retain flag Inputs: When the pin is grounded the MQTT payload is 0 ... Considerable load testing of turning 8 outputs on and off very ...

[Stephane] begs to differ, and coded this Bad Apple!! demo for the Arduino Mega 2560. For those unfamiliar, video on the Arduino is actually somewhat of a solved problem – merely requiring a ...

Now I am trying to connect an ADS1258 ADC converter to an Arduino Mega 2560 microcontroller. My goal is to apply a signal to ADS1258, connect ADS1258 to Arduino and Arduino to a computer, and read the ...