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No modules, everything on a PCB.
I’ve been seeing these digital pet accessories, similar to a Tamagotchi, on my feed a lot and the company selling these were listing them for ~$300 and I thought “I could definitely make this myself”. These things interact with the environment with some basic sensors which gives the face a signal to change its animation.
Turns out its wayy harder than I thought to make myself. considering my only hardware project I’ve made was a macropad.
There is a lot of pieces and I obviously haven’t built anything like this ever. Instead of adding modules that hook up to a breadboard, I realized that all of those parts can be added to the PCB itself and it all starts with the chip.
I looked for the best chip for each of the different features and looked at the schematic for each. The only chip with a datasheet that actually made sense was for the battery charger, the rest…it took a bit more work.
Anyways tomorrow, I’m planning on trying to finish the schematics so make sure to follow!