Pololu, 2755, Pololu Dual MC33926 Motor Driver for Raspberry Pi (Partial Kit)
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Esta tarjeta de controladora de motor es un accesorio para la Raspberry Pi Modelo B +, modelo A +, Pi Modelo B 2 o 3 Pi Modelo B que le permite controlar fácilmente un par de bidireccional, brushed. La tarjeta de expansión utiliza un par de conductores de motor de Freescale MC33926, que operan desde 5 a 28 V y puede entregar una continua 3 A por canal (hasta 5 A por canal durante unos segundos). Otras características que incluyen es un circuito de protección de batería. La configuración predeterminada utiliza seis pines GPIO para los controladores de motor, haciendo uso de salidas PWM y utiliza dos pines adicionales para leer las salidas de estado.



  • Frecuencia máxima PWM: 20 kHz.
  • Corriente de salida por canal: 3A.
  • Voltaje de alimentación: 2-28V.
  • Canales de motor: 2.
  • Controlador MC33926.


  • Dimensiones: 65x56 mm.
  • Peso: 14g.
  • Marca: Pololu
  • Cantidad: 1 pieza.




This motor driver board is an add-on for the Raspberry Pi Model B+, Model A+, Pi 2 Model B, or Pi 3 Model B that lets it easily control a pair of bidirectional, brushed DC motors. The expansion board uses a pair of Freescale MC33926 motor drivers, which operate from 5 to 28 V and can deliver a continuous 3 A per channel (up to 5 A per channel for a few seconds). Other features include a reverse battery protection circuit and logic gates that reduce the number of I/O pins required to control the driver ICs effectively. The board ships fully populated with its SMD components; it is available either as a partial kit, with a female header and terminal blocks included but not soldered in, or fully assembled with these connectors soldered to the PCB.

The board’s default configuration uses six GPIO pins to control the motor drivers, making use of the Raspberry Pi’s hardware PWM outputs, and it uses two additional pins to read status outputs from the drivers. However, the pin mappings can be customized if the defaults are not convenient, and other control inputs and outputs of the MC33926 ICs are accessible on the board for more advanced applications.

Note that this motor driver add-on is designed specifically for newer versions of the Raspberry Pi with 40-pin GPIO headers, including the Model B+, Model A+, Raspberry Pi 2 Model B, and Raspberry Pi 3 Model B. The board matches the Raspberry Pi HAT (Hardware Attached on Top) mechanical specification, although it does not conform to the full HAT specifications due to the lack of an ID EEPROM. (A footprint for adding your own EEPROM is available for applications where one would be useful; pull-ups on SDA, SCL, and WP are provided.) It is not practical to use this expansion board with the original Raspberry Pi Model A or Model B due to differences in their pinout and form factor.




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