the cheapest GPS tracker / GPS locator based on AVR ATTINY2313/4313 or ATMEGA328 (ARDUINO) and SIM800L GSM module

project of a programmer for the ATtiny 11 microcontroller

Weather station with remote sensors and TFT color display

Smart metering of temperature and humidity with reporting via SMS texting / uploading data over GPRS to Thingspeak platform or others

Decoder for the Maverick ET-733 BBQ thermometer

Some small LED-blinking test programs for the AVR microcontrollers

Familly of minimalist development boards for AVR microcontrollers.

ATtiny 2313A based click counter for knitting

A simple Geiger–Mueller Counter for the Detection of Ionizing Radiation

Frequency counter with LCD display.

Vintage Interface Project (V.I.P.) - reuse genuine fischertechnik Computing Interfaces as I²C device.

Control up to 10 servo motors via I2C with this firmware for ATtiny2313 and ATtiny26 originally by Stefan Frings

Big DIY clock based on LED filaments

Solari Metor Controller

433 MHz garage/garden door opener "remote" based on ATtiny2313 with some extra features.

firmware for attiny 2313 multipurpose automatic shutter

RPI3-based home entertainment system

Digitize up to 10 resistance readings by just one ATtiny2313 as I²C slave.

Attiny2313 125kHz RFID tags reader

The led light that prints your text on the turning bike wheel.