3 Channle IR Infrared Tracking Tracing Sensor
470 KOhm - 1/4W Carbon Flim Resistor
Keyestudio Nano V3.0 Development Board with 328P Microcontroller CH340 Chip
220 Ohm - 1/2W Carbon Flim Resistor
sparkfun Piezo Vibration Sensor - Small Horizontal
Fingerprint identification module (R307)