CD74HC238E

PIR Motion Detector Sensor Module HC-SR501

5.1K - 1/4W Metal Flim Resistor

24 Pin Narrow Type Dip Socket

IC 2262/2272 315Mhz 4-Channel Four-Way 4 Key Wireless Remote Control Non-lock  Receiver Module

Micro NRF24l01 + wireless module

PC817

5A XL4015 DC-DC Step Down Adjustable 4-38V Power Supply Module LED Lithium

500K potentiometer

25GA310 DC Deceleration Micromotor DC12V100RPM

16 Pin Dip Socket

DC 6V  620 rpm 25GA370 DC Reduction Gear Motor with wheel