Wiring Methods for Various MCUs and the UC01 Servo Adapter Board
1. STM32F103 SDK
| MCU Pin | UC01 Pin | Description |
|---|---|---|
| PA9 (UART1 TX) | RX | MCU transmit |
| PA10 (UART1 RX) | TX | MCU receive |
| 5V | 5V | 5V power |
| GND | GND | Common ground |
2. STM32F407 SDK
| MCU Pin | UC01 Pin | Description |
|---|---|---|
| PA2 (USART2 TX) | RX | MCU transmit |
| PA3 (USART2 RX) | TX | MCU receive |
| GND | GND | Common ground |
| 5V | 5V | 5V power (optional) |
3. Arduino Mega2560
| MCU Pin | UC01 Pin | Description |
|---|---|---|
| D15 (Serial3 RX) | TX | MCU receive |
| D14 (Serial3 TX) | RX | MCU transmit |
| GND | GND | Common ground |
4. Arduino Uno
| MCU Pin | UC01 Pin | Description |
|---|---|---|
| D0 (RX) | TX | MCU receive |
| D1 (TX) | RX | MCU transmit |
| GND | GND | Common ground |
| 5V | 5V | 5V power |
5. ESP32
| MCU Pin | UC01 Pin | Description |
|---|---|---|
| GPIO16 (UART2 RX) | TX | MCU receive |
| GPIO17 (UART2 TX) | RX | MCU transmit |
| VIN / 5V | 5V | 5V power (optional) |
| GND | GND | Common ground |
Note
- The ESP32 is powered through its Type-C port.
- ESP32 Arduino extension package V2.0 and V3.0 differ in hardware serial port (UART) configuration. Some default pins and initialization methods have been updated.
- If code written for V2.0 is run directly in a V3.0 environment, servo communication may become abnormal, unresponsive, or fail to control the device.
- If you use V3.0, make sure to reconfirm the UART pin configuration and serial port initialization method.
- Wiring: TX → GPIO4, RX → GPIO25.
6. General Wiring Relationship
| MCU Pin | UC01 Pin |
|---|---|
| TX | RX |
| RX | TX |
| GND | GND |