Bernhard

SoftI2CMaster. Software I2C Arduino library

dw-link. An Arduino-UNO-based debugWIRE hardware-debugger

SlowSoftI2CMaster. C++

RescueAVR. An Arduino sketch that is able to do high-voltage programming in order to resurrect bricked AVR MCUs (you need a bit of HW on a breadboard or some special Arduino shields as well)

SlowSoftWire. C++

PyAvrOCD. A cross-platform GDB server for AVR MCUs integrated into the Arduino IDE 2

SingleWireSerial. Software serial library using a single line in half-duplex mode. In addition, it uses the input capture feature of timer 1 for improved accuracy.

FlexWire. A Wire-alike library that can be used as a drop-in for the Wire library

avrCalibrate. Calibrate AVR MCU clock frequency and internal reference voltage and set calibration values at program startup

dw-gdbserver. A Python script implementing a gdbserver interfacing to debugWIRE MCUs

TXOnlySerial. Transmit-only Software Serial Arduino library

OneWire. Modification of original Arduino library to make it runnable under 1MHz

Vcc. A library for measuring the supply voltage of an AVR MCU

RTC_I2C. This is an Ardunio library implementing a unified, minimalistic interface to many I2C RTCs

DotMatrix5x7. Arduino library for driving one 5x7 dot matrix display (using timer0 or timer1 interrupt)

progmem_far. The missing PROGMEM_FAR macro for Arduino

avrburn. AVR programmer on Gamebuino Meta

PETPreformBoard. C

cardRack. An IoT card rack that signals how many cards are present using LTE-M (hardware, software, and 3D print data)

progmemcheck. A Unix and a Window shell script to check for the size of the PROGMEM section on AVRs with more then 64 kB

RTCEval. A long-term experiment with thirteen different RTCs

osccalTune. Arduino sketch for calibrating the internal oscillator

XMiniCore. A (debugging enabled) Arduino hardware package for ATmega328P Xplained Mini, ATmega168PB Xplained Mini, and ATmega328PB Xplained Mini

upAndDown. C++

ATTinyCore. C

pio-cortex-debug. A hack to make Cortex-Debug available in PlatformIO/VSC when using PyAvrOCD