Each project below was shipped, tested, or printed.
Raspberry Pi 3B piggy bank that recognises and sorts coins by color.
ESP32 redesign of the smart piggy bank, packaged as a product.
ESP32 / ESP32-S3 firmware: rotary UI, coin detection, OLED debug, persistent state.
Eight-channel solenoid manifold, microcontroller, and a recipe book.
Functional 3D-printed buckle with full strength calculation and material trade-off.
A 3D-printed whistle tuned to musical A — designed from acoustic first principles.