A set of various projects based on ESP8266, ESP32, ATtiny13, ATtiny85, ATtiny2313, ATmega8, ATmega328, ATmega32, STM32 and more.

Very simple 433MHz (EU/ASIA) 315 MHz (US) RF jammer for keyless cars theft prevention

ATtiny13 Software UART library.

TinyFL - Simple AVR (Attiny13a) PWM LED driver

Collection of AVR Development Boards

Lightweight WS2812B RGB led driver for the attiny13

ATTiny13/25/45/85: "An Ultra Simple Iambic Keyer with Speed Pot" !

A PCI Express card with an inbuilt PWM fan controller and mounting points for an 80mm fan.

Animated LED candle AVR ATtiny13

ATtiny13 based PI (Pulse Induction) Metal Detector

Digital LED thermometer on ATTINY13 / LM35 and 4-digit TM1637 module for Arduino. Uses LM35 analog themperature sensor (0-100C degrees).

ATtiny13-based fan control which I use to mod the fan of my Korad KA3005A power supply

MCP4141 and ATtiny13 based digital potentiometer

This is scrolling LED banner based on customizable set of MAX7219 modules and ATTINY85 / ATMEGA328 chip. Supports up to 32 daisy chained 8x8 LED matrix modules and scrolled texts longer than 5000 characters. When using ATMEGA328P you can send text message to display via serial port and FTDI232 adapter

This is ultrasonic pest repellent device for bugs based on ATTINY85, resistors and PAM4803 amplifier with set of 40kHz ultrasonic transducers

The firmware for the lightbox of a commercial refrigerator

Monitor soil moisture and water plant.

Contains C codes for AVR MCUs

Using Binary Code Modulation (BCM) on a ATTiny13 microcontroller to drive LEDs and fade colours smoothly.