Model car and boat remote control

Relevant key device information applied in this article: TX315B1 NE556 NE556 is a dual time base integrated circuit, containing two independent 555 circuits. Each 555 circuit forms a Schmitt trigger, which is controlled by the output terminal of TX315B1 to achieve triggering. Flipping of the device. When the input terminal of the Schmitt trigger is low level, its output terminal outputs high level; when the input terminal is high level, its output terminal outputs low level. When both ends of the motor are high or low, the motor stops; when one of the two ends of the motor is high and the other is low, the motor rotates; if the high and low levels of the motor are reversed, , the motor rotation direction is reversed.