65mm Green Wheel for BO Motor F80UP40DN 400V 80A Fast Recovery Diode It's a YAGEO 22nf 50v

It's a YAGEO 22nf 50v of 0805 package SMD type capacitor

Passive Buzzer KY-006

Its used to sense the gas

11b/g/n wireless LAN

HCNW4506 is a logic output optocouplers

65mm Green Wheel for BO Motor F80UP40DN 400V 80A Fast Recovery Diode It's a YAGEO 22nf 50vThe 65mm Robot Wheel is for the BO Motor (Green). High quality rubber used in the wheel's construction ensures optimal traction. The wheel's nylon reinforced plastic rim gives it strength and durability. Features The car hub is reinforced nylon, which is very sturdy. A tire with sponge liner for more strength With upgraded tire tread for greater friction New design wheel for better combination with the motor Specification: Type Tyre Wheel Colour Green