Private Projects

One of my first projects in University developed together with one of my best friends is an Arduino UNO game platform, displayed on 8×8  RGB LED shield and controlled with a HitLetgo gamepad. The first and only game developed on this platform was Snake RGB. You start the game with powering the Arduino and controls the “Snake” with the gamepad. The controller triggers interrupt routines, where the direction flag is been set. These ISR are needed to react directly by triggering a button, since the cycletime of the arduino is too high to detect trigger smaller than a few microseconds. With my current knowledge I would also focus on the debouncing of the trigger, to filter unintendent or to fast clicking of the Buttons. If the game ends, your high Score will be saved into EEPROM together with the best 2 high scores reached previously. 

Needed Hardware:

• Arduino UNO with 8-Bit ATmega 328 16MHz
• 8×8 matrix RGB LED Shield
• HiLetgo Gamepad
• 5V power supply or USB cable

Also this project was done in University with the above listed friend and based on an already partially developed RC car with ADAS features. The car was setup already and had a lot of features like manual control with a PS3 controller (bluetooth connection), headlights, ultra sonic sensorics and a dual-cam mounted on the top of the car. To control the motorics on the vehicle there was an Arduino Mega used, which was connected with I2C to an ODROID, where the picture adaption and calculation of trajectory is been done. On the Odroid is a Linux OS installed with a CMake build environment. The pictures where already partially processed. Our task was to calculate a trajectory, based on lane-detection and let the car drive completely without manual control on a test track. Before starting to calculate the trajectory we had to check the adaption of conversion from “fisheye” to equirectangular. Here we adapt the conversion to get a propotion in between pixles to meter. The calculation of the trajectory was done with detected points (lanes) where the arithmetical mean is provided to “curve-fitting” toolbox. From this trajectory we were able to calculate steering angle. With a low pass filter, and a slow speed the car was able to drive thru the test track and was presentated on open-door day in the DHBW.

My car has a pneumatic system to control central locking system, headrests, trunk lid, soft-close and massage functions. Sometimes it happens that the system get in lock mode and I am not able anymore to open the doors or trunk lid with remote key. Unfortunately the exact reason i couldn`t found (most likely the pressure of the pump is too less and it locks up). Therefore I found a more cheap solution than replacing the pump for over 1000€ since it works fine if it doesn`t locks up. An AT-Tiny and a Realis to interrupt every 24h for around 3 seconds thepower supply of the pump (reboot of ECU). The AT-Tiny is controlling the Relais and checks every 8s (time ISR) if 24h have passed. If so, it will interrupt the power supply for 3s, if not, it will go into sleep mode for 8s. The power consumption is less than 0.01W.