Here’s a no-PCB Arduino that doesn’t obscure the DIP footprint of the AVR chip. It’s built on an ATmega88 chip, and includes a programming header, reset button, a couple of filtering caps, and an LED.

The project utilizes an Atmel8 AVR as the heart of the board to create an Arduino compatible breadboard. The USB to serial communication board used in this project utilizes a FT232 USB breakout board.

I made this Arduino 8 bit binary led counter as a solution for one member from Arduino forum. He asked if somebody can make a project that displays a decimal number in 8 bit binary format using 8 leds ...