The Arduino UNO R3 is a development board based on the 8-bit ATMega328P microcontroller. It is one of the most iconic boards ever designed, and it is known and loved by millions of makers worldwide.

Arduino UNO R4 test code to measure the RA4M1 chip die-temperature with register level ADC operation, and ADC conversion timing measurments using the AGT1 timer. Also demonstrates a hijack of IDE ...