[WIP] WebAssembly RGB lamp animation demo

• MCU: Nordic nRF51822 QFAA (16 MHz Cortex-M0, 16 Kb RAM, 256 Kb Flash)
• Wasm Runtime: Wasm3
• Framework: Arduino
• Build System: PlatformIO

Demo

• Video with 30 LEDs, lamp produces 110 FPS
• Video with 144 LEDs, lamp produces 23.5 FPS

Status

• [x] Run AssemblyScript on nRF51
• [x] Simple Color Wheel animation working
• [x] Transfer pixels in batches (optimize speed)
• [x] Add support for Micro:bit, ESP32, ESP8266
• [ ] Try running Bluetooth LE stack
• [ ] Upload wasm binary to device using BLE (store to RAM)
• [ ] Store wasm binary to flash

Build instructions

./assemblyscript contains the wasm app. This implements an animation.
./wasm_vm contains the interpreter/VM.

1. Install PlatformIO
2. In assemblyscript directory, run npm install
3. To build the demo: make
4. To upload and run the demo: make run