My present project, C# interfacing with Arduino

Bidirectional serial communication between C # and Arduino.
Analog and digital communication, both at the same time.
I built the PCB around ATMEGA8.
I used a 16x2 LCD to check sent / received data.

I/O:

2 digital outputs (2 LEDs),
1 PWM output (1 DC motor),
2 digital inputs (2 switches),
2 analog inputs (1 potentiometer and 1 phototransistor).

 

Watch video: