Hat CBack Driver
Description
Hat CBack Driver is a servo driver board compatible with M5StickC, using the STM32F030F4P6 control scheme and communicating with M5StickC via the I2C interface. It provides 4 sets of PWM servo drive interfaces (the servo drive power is directly connected to the internal battery of M5StickC, capable of driving standard servos such as SG90). This module extends the I2C bus at the top of StickC and additionally provides a GPIO interface through STM32. It can be used for general logic level and ADC analog signal input reading. The back is designed with LEGO-compatible holes, allowing users to easily integrate this driver board into LEGO brick structures, suitable for building controllable structures such as servo robotic arms.
Features
- 4 x Servo Drive
- Compatible with C/C Plus
- Interface Expansion (GPIO, I2C)
Includes
- 1 x Hat CBack Driver
- 2 × Hex Screws M2*5
- 1 × Allen Wrench
Applications
- Servo Controller
- Robot Control
Specifications
| Specification | Parameter |
|---|---|
| MCU | STM32F030F4P6 |
| Communication Protocol | I2C:0x38 |
| Working Current | 15mA |
| Net Weight | 9g |
| Gross Weight | 13.5g |
| Product Size | 23.7 x 49.2 x 21mm |
| Package Size | 136 x 92 x 22mm |
Schematics
PinMap
| M5StickC | G0 | G26 | 3.3V | GND |
|---|---|---|---|---|
| C Back Driver | SDA | SCL | 3.3V | GND |
Model Size
Hat CBack Driver Model Size PDF
Softwares
UiFlow1
Protocol
- Protocol Type: I2C
- I2C Address: 0x38
/*------------------------------------------------ -------------------------------------------------- */
| SERVO_ANGLE_REG | 0x00-0x03
| ------------------------------------------------- -----------------------------------------------
| servo_1_reg[0] 0x00 | R/W | SERVO1 Angle value(0~180)
| servo_2_reg[1] 0x01 | R/W | SERVO2 Angle value(0~180)
| servo_3_reg[2] 0x02 | R/W | SERVO3 Angle value(0~180)
| servo_4_reg[3] 0x03 | R/W | SERVO4 Angle value(0~180)
/*------------------------------------------------ -------------------------------------------------- -
/*------------------------------------------------ -------------------------------------------------- */
| SERVO_PULSE_REG | 0x10-0x17
| ------------------------------------------------- -----------------------------------------------
| servo_1_reg[0:1] 0x10-0x11 | R/W | SERVO1 PULSE value(500~2500)
| servo_2_reg[2:3] 0x12-0x13 | R/W | SERVO2 PULSE value(500~2500)
| servo_3_reg[4:5] 0x14-0x15 | R/W | SERVO3 PULSE value(500~2500)
| servo_4_reg[6:7] 0x16-0x17 | R/W | SERVO4 PULSE value(500~2500)
/*------------------------------------------------ -------------------------------------------------- -
/*------------------------------------------------ -------------------------------------------------- */
| PPORTB_ADC_REG | 0x20-0x21
| ------------------------------------------------- -----------------------------------------------
| portb_adc_reg[0:1] 0x20-0x21 | R | PPORTB ADC value(0~4095)
/*------------------------------------------------ -------------------------------------------------- -
/*------------------------------------------------ -------------------------------------------------- */
| PPORTB_OUTPUT_REG | 0x30
| ------------------------------------------------- -----------------------------------------------
| portb_output_reg[0] 0x30 | R | PPORTB Output Digital value(0/1)
/*------------------------------------------------ -------------------------------------------------- -
/*------------------------------------------------ -------------------------------------------------- */
| PPORTB_INPUT_REG | 0x31
| ------------------------------------------------- -----------------------------------------------
| portb_input_reg[0] 0x31 | R | PPORTB Input Digital value(0/1)
/*------------------------------------------------ -------------------------------------------------- -
Video
- Making a four-wheel cart with CBACK DRIVER