assorted 3A terminal joints: found here.assorted dupont and/or electric cables (stereo speak cable is your friend).I kept adding resistors in parallel (didn’t have a proper assortment of resistors) until the volume was a good tradeoff: found here Which resistor to use depends on the volume you want to achieve. Without resistor, the buzzers are pretty loud and over-distorted, so I preferred to put some resistors to limit the current. I have tried the little clicky ones, they were pleasantly clicky but hard to mount and to press. I have the ones with switches (you need to solder all the connections), whose door doesn’t close very well, so I’ve added some gap in the back plate to allow for this little bulge: found here I’ve used AZ-Delivery lolin32 lite, which unfortunately doesn’t have a 5v input pin, and I didn’t want to use a DC-DC convertor, so I ended up cutting a micro usb cable and using that to connect the esp to the battery pack. You need to cut these to size: found here Note these were my 4th and 5th rgb panels, I have multiple 32x32 and 64圆4 panels, but these were by far the easiest to work with, starting from the dupont to 16 channel ribbon cable connector which was very handy for the arduino: found here

I’ve used the model from Waveshare, which kindly sponsored this project.

implementing (almost) all Tetris guidelines.

battery powered (gentle on battery, exceeds 4 hours of gameplay).

wireless 2 player gaming (mimicking Tetris on the GameBoy).The result is the nerdiest project I’ve done so far, I hope you can appreciate the attention to the tiniest useless detail :) Then I realized I could design a 3d-print a nice case for them, which would also allow to place some ergonomics controls. Then I realized what’s a console without some proper squeaky buzzer sound? Then I realized by using ALL the pins on the ESP32 I could have 2 buzzers, for polyphonic music and effects. Then I realized the ESP32 has a fantastic ESPNow protocol with low latency, no wifi needed (or better, it creates its own wifi), which fit the purpose. Then I realized I could make a pair of consoles for multi-player games. Then I realized that game must be Tetris.

So I decided to make a portable battery-powered console, with at least one game on it. I wanted to experiment with a 64圆4 rgb led panel.

3d printed elephant stl file