Four and Five Channel RC Cars

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TX and RX circuits using metal gate CMOS instead of custom chips.

This transmitter has no separate on/off switch because the joysticks switch the battery terminal. There are two speeds in forward and one in reverse.

Circuit Diagram aka Schematic reverse engineered from circuit board

The receiver has a bigger motor to drive the wheels and a smaller motor to drive the steering which is not proportional. You could add an extra channel to the receiver by using the spare latch.

Circuit Diagram aka Schematic reverse engineered from circuit board

Again there is no separate on/off switch on the transmitter because the joysticks switch the battery terminal. There are two speeds in forward and one in reverse.

Circuit Diagram aka Schematic reverse engineered from circuit board

The receiver has a bigger motor to drive the wheels and a smaller motor to drive the steering which is not proportional.

Circuit Diagram aka Schematic reverse engineered from circuit board

Circuit Diagram aka Schematic reverse engineered from circuit board Circuit Diagram aka Schematic reverse engineered from circuit board

Circuit Diagram aka Schematic reverse engineered from circuit board

Safety, accuracy and completeness of information provided herein is not guaranteed,
so be inspired by it but do not use it as a basis for experimentation or other actions.

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