念慈菴

Remote Control Toy Kit

Overview

The main chip of the core board is STM32G030C8T6 with complete functions, including PWM interface, 2.4G module interface, 0.96-inch OLED display interface, battery voltage detection, indicator light, debugging serial port and SWD download port, which is convenient for secondary development and use.
Insert the core board into the base of the remote control as a 2.4G remote control, powered by a single lithium battery. The core board collects rocker and button signals for transmission. The remote control is connected to a 0.96-inch OLED extension to display the joystick data, remote control battery voltage data and battery voltage data of the motor drive board.
Insert the core board into the motor driver board to drive the motor, which is powered by two-cell lithium batteries. The motor driver chip L9110 supports PWM speed regulation and forward and reverse rotation, and can be expanded with a servo drive. The motor drive board receives signals to control motor action and returns the current battery voltage in real time.
The remote control and the core board on the motor driver board use the same firmware. The remote control external IO has a jumper cap to distinguish different firmware functions.
At present, the motor drive board is only modified to toy cars to realize variable speed forward, backward, in-situ turning, and differential turning functions.

Remote control + core board finished product

Motor base plate + core board finished product

Design Files

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Update:2025-08-06 01:46:05

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