Animated LED candle AVR ATtiny13

An underspeed relay on ATtiny13A. 0.1-10 Hz input, 1-10 s startup delay. Configurable through two linear potentiometers. The more profound description will be available later.

Attiny13-based micro monitoring circuit which turns on power to load on ENABLE signal. Includes debouncing and minimal ON time.

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

My silly productivity timer

MCP4141 and ATtiny13 based digital potentiometer

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

Monitor soil moisture and water plant.

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

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

Sound fader control system using ATtiny13A and TEA6330T

Samsung IR Protocol decoder written for ATTiny13 and MicroCore

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

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

Contains C codes for AVR MCUs

ATtiny13 based PI (Pulse Induction) Metal Detector

The firmware for the lightbox of a commercial refrigerator

A handy thermometer with an OLED display built around an ATTiny13 and an LM3x analog temperature sensor. This repo contains only firmware.

Charge indicator firmware sources for ATTiny13.