So much has happened since the last log!

In this log, I'm documenting the steps I took to assemble everything into one piece with the heart prototype. As you can see in the video below, all 4 LEDs are currently working and the Arduino is still able to sense when everything is connected up!

I assembled it all with a MetroMini and the DFPlayer on a breadboard on the back of the heart. I connected wires to each of the pogo pins and wired them to the MetroMini. I chose the MetroMini because it uses the ATMega328P microcontroller, the same found in the Arduino Uno but in the surface mount package. I've worked out a few bugs in the code, so now I feel pretty confident and satisfied with the functionality. I'm also very happy with the size of the package and it's exciting to see it all contained in one piece!

The next step is converting this to a schematic and PCB layout, which will give me a consistent foundation to build on. I've learned how to build a 'barebones Arduino' using the ATMega328P 28-pin DIP package, so that's what you'll be seeing in the next update!