The BMP73T102 is a 2-channel motor driver shield that has built in two Holtek motor driver ICs, the HT7K1411. The product can drive two DC motors or one stepper motor.
The BMP73T102 supports four driver functions, forward, reverse, 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 |
|---|---|---|
| RESET | RESET | Reset development board |
| GND | GND | Ground |
| VIN | VIN | Development board power selection
(supply power via the shield) |
| M2-PIN2 | ~D3 | Control pin2 of DC motor 2 |
| M2-PIN1 | ~D5 | Control pin1 of DC motor 2 |
| M1-PIN2 | ~D6 | Control pin2 of DC motor 1 |
| M1-PIN1 | ~D9 | Control pin1 of DC motor 1 |
| M1-OUT1 | - | DC motor1 pin1 / stepper motor A+ |
| M1-OUT2 | - | DC motor1 pin2 / stepper motor A- |
| M2-OUT1 | - | DC motor2 pin1 / stepper motor B+ |
| M2-OUT2 | - | DC motor2 pin2 / stepper motor B- |
| V- | - | Ground (motor) |
| V+ | - | Power supply: 5V~24V (motor) |
| 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 |
|---|
