Inside a Cheapo Toy Grade RC Car

The car operates at 27 MHz. There is no channel selection option so running two cars near each other will result in interference. 3 AA batteries are required for the car and 2 AA for the controller.

This cheap RC uses two 1.5 DC motors for the forward and backward movement and for turning the car sideways. A simple arrangement of gears takes the high speed of the rear motor and slows it down.

There is no servo for steering. A motor with gear and a simple gear reduction system is used to steer the car left or right. A linkage puts the wheels on an angle. A spring centers everything. It cannot do angles in between.

The cheapo R/C vehicle responds to commands at distances of 5-10 metres. You can see what the transmitter contains. There are trottle and steering contacts, antenna and battery connections. When one of the two metal strips makes contact on the board, it will complete the circuit.

It is not a hobby-grade electric RC truck. There is a circuit board instead of a receiver and speed controller with wires running to the front and rear motors, to the battery and working lights for a night driving.