Quantity   Component name
1 × ATMEGA328P Arduino UNO microprocessor
1 × MMA8451QR1 3-Axis Accelerometer
1 × L3GD20TR 3-Axis Gyroscope
6 × RGB LED (NeoPixel) WS2812B Same LEDs used in NeoPixel products
1 × Piezo Get your chirp on.
3 × SFH 206K Photodiode - sensitive to ambient as well as IR light
1 × TSOP6238TT 38 kHz IR remote control receiver
2 × PD15-22B/TR8 Photodiode - under feelers to sense lines and edges
1 × MCP73831T Lithium battery auto-charger. Based on design from SparkFun.