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The BMP73T104 is a 4-channel motor driver shield that has built in one 32-bit MCU, the HT32F50230, and four motor driver ICs, the HT7K1411. The product can drive four DC motors or two stepper motors.
The BMP73T104 controls motors through the MCU, HT32F50230, and supports four driver functions, forward, backward, brake, and standby, along with four protection functions to ensure a safe operation.
Motor driver requires an external power. The product supports two power supply methods, DC Jack and motor power interface (choose one).
To prevent any damage due to the large working current of the motors, please follow the below steps when operating the power supply.
Power on/off Sequence
You can insert the product into an Arduino UNO or the BMduino-UNO, BM53A367A, which is designed by Best Modules,. You don't need an external cable, just connect the shield to Arduino UNO or the BM53A367A.
Other pins are not used.
| Pin name | BM53A367A pin | Function |
|---|---|---|
| IOREF | IOREF | Positive power |
| RESET | RESET | Reset development board |
| GND | GND | Ground |
| VIN | VIN | Development board power selection |
| SDA | D18/A4 | I2C: data line |
| SCL | D19/A5 | I2C: clock line |
| M1-OUT1 | - | DC motor1 pin1 / stepper motor1 A+ |
| M1-OUT2 | - | DC motor1 pin2 / stepper motor1 A- |
| GND | - | Ground |
| M2-OUT1 | - | DC motor2 pin1 / stepper motor1 B+ |
| M2-OUT2 | - | DC motor2 pin2 / stepper motor1 B- |
| V- | - | Ground (motor) |
| V+ | - | power supply: 5V~24V (motor) |
| M3-OUT1 | - | DC motor3 pin1 / stepper motor2 C+ |
| M3-OUT2 | - | DC motor3 pin2 / stepper motor2 C- |
| GND | - | Ground |
| M4-OUT1 | - | DC motor4 pin1 / stepper motor2 D+ |
| M4-OUT2 | - | DC motor4 pin2 / stepper motor2 D- |
You can use the BMCOM on the product to connect to the BM53A367A as well.
| Pin | Pin name | Function |
|---|---|---|
| 1 | INT | Over current: output low
Otherwise, output high |
| 2 | SCL | I2C: clock line |
| 3 | SDA | I2C: data line |
| 4 | VDD | Power supply: 2.5V~5.5V |
| 5 | GND | Ground |
| Part number | BMP73T102 | BMP73T104 |
|---|---|---|
| Channel | 2-channel | 4-channel |
| MCU | X
Using development board to control motors |
HT32F50230
Using MCU to control motors, and sending commands via development board |
| BMCOM | X
It can only use as a shield |
O
You can use the BMCOM to connect to the BM53A367A directly |
| Interface | I/O | I2C |
| HS Code (reference) | 9030.90.90.00-8 |
|---|
