@ari-therationalbirdie

This is a mini small scale handheld gameboy like device with 15 inbuilt games including: snake, breakout, dodge, space invaders, pong, tetris, super mario bros, donkey kong, pacman, chrome dino game, Doom, X wing vs death star, contra, Need for speed, Crossy road. It uses a 0.96 inch oled display and a joystick module, rotary encoder as the controls along with a seeed studio xiao esp32 c3 The gameboy has a starting animation and sound played similar to the original gameboy. Each game is listed in a menu after this which can be scrolled with the encoder or switched through with the joystick any switch is clicked to open up the selected game. Each game has a startup screen with an animation of the game cartridge going into a reader with cover art and sound effects played specific to each game. It is all powered by a battery from an old phone with a charging module attached so it can be charged via USB C. Each game has its own HUD showing relevant information.

A high speed PID line follower

A phase contrast microscope with an up to 2000 times zoom and stereo lighting made with Junk! lenses from old phones and cameras with a few bought parts for the circuitry.