Output Devices

This week our assignment was to add an output device to a microcontroller board we’ve designed. Then we had to program the microcontroller. We used our FabISPs we built earlier in the course again. I chose to use a LCD as my sensor. Our instructor was against allowing us to do an RGB LED, as most of us used a single color LED last week to go with our inputs.

Eagle Cad is a lot easier to use now. Loading the Eagle Fab libraries is imperative to getting all the right components. It is useful to name your traces for the routing process. Once again, the solder paste was applied using a Silhouette cut vinyl stencil. Here is my schematic. After my board was baked and cooled, I was ready to solder a cable to my LCD screen. I used a Lumex S01602 D/A LCD. With this data sheet I found to find out where to solder my wires to the LCD pins. Finding an example Arduino code was simple; File> Examples>LiquidCrystal>HelloWorld. I had a fun time changing the code to change the LCD screen. It was a satisfying project overall. Here is my Arduino code.