Here is what I do for fun when I'm not pre occupied with other tasks to do you can find me setting something up with Arduino. For instance the most recent thing I did was setting up this LCD screen. It was just for fun and something I decided to do to show myself I can do it.
Here is the picture of the code for the LCD display it is quite simple. I just needed to make sure the pins that were in the motherboard were assigned from specific input pins to the LCD display. In my design, I added a potentiator which all it did was control the brightness of the backlights.
Here is a program I wrote for a Heads-Up Display tachometer I put together to display engine RPMs. I needed to write a program for an OBD II plug that gets wired into the Arduino board. The Arduino reads the PID from the car to get its live RPM readout. Then I had to figure out how I wanted the gauge to progress as the rpm increased. A traditional way that would be easier was to make it go from left to right. The way I ended up doing mine was wiping from outside to inside.
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