I built my own NES handheld with an ESP32, a 3D-printed case, and a 7.4V battery. It plays games from an SD card.
How to Boost 3V to 1800V Without Any Chips (Electric Fly Swatter Circuit Breakdown)
Arduino-based dice throwing and coin flipping simulator with 3D-printed enclosure
An 18650-powered ESP32 desk buddy with a 2.8" touchscreen and rotary knob: AI chat, weather, crypto, PC stats and BLE volume control.
The "Space 3D Diorama" is large shadow box miniature inspired by Chesley Bonestell classic space-age paintings with interactive features.
How to Build an 8x Voltage Multiplier Circuit Using Only Diodes and Capacitors
Drag widgets, add rules without code, and export an Arduino project for your ESP32 display board. It runs in the browser.
A super tiny arcade that can carry around
An experimental device built to explore whether human intention correlates with deviations in a hardware-generated random sequence.
A tone-synthesizing STM32F407 audio player with FreeRTOS multitasking, I2S DMA streaming, pot volume, and LCD status feedback.
Understanding Capacitor Charging and Discharging: A Visual Guide
