Capacitor - 47nF or 0.047uF or 473 / 50V
Optical broken module ( ARDUINO photo interrupter module )
Raspberry Pi 5v 3W USB-C Power Supply (official )
XBEE MODULE - SERIES 1 - 1MW WITH WIRE ANTENNA - XB24-AWI-001
Voltage Sensor DC Raspberry Pi Amplifier Digital Current DC0-25V
5V 1A Li-Battery Micro USB Charger Module Li-ion LED Charging Board