COOCHEER Gas Pole Saw 11.5 inch Guide Bar 2-Cycle pole chainsaw Photoresistor Optoresistor for tree 5539 trimming

Aftermarket Mini Laser Dot Diode Module Head WL Red 650nm 6mm 5V 5mW Pack of 10pcs

Laser Head Diode Dot Module WL Red mini 650nm 6mm 5V 5mW 10PCS

GeeBat 10pcs Mini Laser Dot Diode Module Head Red 650nm 6mm 5V 5mW Diode Lasers

AIRSUNNY three Legs 5 pairs Infrared Diode LED IR Emission and Receiver

EMY 5 X HC-SR501 Adjust Ir Pyroelectric Infrared PIR Motion Sensor Detector Modules

E-Projects 25EP51410K0 10K Ohm Resistors, 1/4 W, 5% (Pack of 25)

DFGB37RG-136i Cylinder Shape DC 24V Speed 20 RPM Geared Motor

E-Projects EPC-103 16 Value Resistor Kit, 10 Ohm - 1M Ohm (Pack of 400)

Elegoo 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Wires Ribbon Cables Kit for arduino

SunFounder Mega 2560 R3 ATmega2560-16AU Board (compatible with Arduino)