This Atmel Studio 7 bare metal example in Low-BOM Microphone Interface Using the Analog Signal Conditioning (OPAMP) (AN3631) shows how to interface an electret microphone with a microcontroller (MC…

Arduino core for AVR DA, DB, DD, EA and future DU-series parts - Microchip's latest and greatest AVRs. Library maintainers: Porting help and adviccee is available.

Getting Started with Inter-Integrated Circuit (I2C) Using the AVR64DD32 Microcontroller with MCC Melody

U8glib library for monochrome displays, version 2

Space Invader for Raspberry Pi Pico ラズベリーパイPicoでインベーダーゲーム

RotaryEncoder Arduino Library

SI473X Library for Arduino

Arduino CW Decoder

ubitx - sketch for the raduino to work with the ubitx transceiver

Hamradio SDR transceiver software

uSDR implementation based on a RP2040 Pi Pico

16.93MHz all mode TRCV using ESP32-S3

I²C OLED on an ATtiny10/13/202

Simple and experimental (class-E driven) SSB transceiver.

The 'Direct Digital Transceiver' (DDX) project. Some folks call it 'Dhiru's Digital Transceiver' :D

Latest ESP8266 SDK based on FreeRTOS, esp-idf style.

Paddle Emulator for myACT

Open firmware for all versions of the uSDX transceiver

SA6 Spectrum Analyzer User Manual and Driver Software