Embedded Files
Project Overview
Project Overview
We made a mini gameboy-style handheld console that plays space invaders. The LCD screen is controlled by an ESP32, which receives inputs from a knob and buttons. The LCD uses SPI communication and the knob is a rotary encoder. The entire device is powered by AAA batteries in series.
We made a mini gameboy-style handheld console that plays space invaders. The LCD screen is controlled by an ESP32, which receives inputs from a knob and buttons. The LCD uses SPI communication and the knob is a rotary encoder. The entire device is powered by AAA batteries in series.
Features
Features
Compute: ESP32-S3-WROOM-1 - program with Arduino Core
Output: 1.8in LCD Display (4-wire SPI interface) 128x160 resolution
Inputs: 3 Buttons (Start, Reset, Boot) + Knob (Rotary Encoder + Push Button)
Buttons have low-pass filter
Knob uses quadrature encoding
Schematic
Schematic
Layout
Layout
Assembly
Assembly
Key Takeaways
Key Takeaways
Power rail shorts can be subtle and difficult to debug
Verify software settings before reworking hardware
Consistent net naming is critical in schematic design
Validate component footprints and physical dimension
Careful soldering is important for PCB reliability
Future Improvements
Future Improvements
Multiplayer Co-Op capabilities
Multiplayer Co-Op capabilities
- Bluetooth connection to an external controller
- ESP-NOW to connect both boards to eachother
3D printed case/housing
3D printed case/housing
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