MC33926 - dualchannel motor driver 28V/3A - shield for Raspberry Pi 3/2/b+ - assembled - Pololu 2756

Index: PLL-04346 EAN: 5904422332730

Module with dual MC33926 driver of motors, working with voltages from 5 V to 28 V and current up to 3 A per channel (max. 5 A). The shield can be linked directly with connectors of GPIO of minicomputer Raspberry Pi B+, A+ and 2.

MC33926 - dualchannel motor driver 28V/3A - shield for Raspberry Pi 3/2/b+ - assembled - Pololu 2756
€55.91 tax excl.
Waiting time: 4-6 weeks
Only on request
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Manufacturer: Pololu
Compatibility: Raspberry Pi


  • Supply voltage: 5 V to 28 V
  • Continuous output current per channel: 3 A
  • The maximum short-term current per channel: 5 A
  • PWM frequency: up to 20 kHz
  • Protection against incorrect attachment of power supply
  • Designed for connectorsof the Raspberry Pi B+
  • A Python libraryto facilitate the module maintenance
  • Dimensions: 65 x 56 mm
  • Weight: 14 g (without connectors)


This version is up and ready to work.

In our offer is also available as aKIT for self-assembly.



The module is based on a Freescale MC33926 and lets you control the motors with a supply voltage up to 28 V and a continuous current consumption of up to 3 A. The driver withstands seconds of jumping current up to 5 A. The speed of rotation can be controlled by the control signal of PWM.


In combination withthe Raspberry Pi, using a specially preparedlibraries,you can easily control the speed and direction of rotation of two DC motors. Form and pins of the board allow for direct connection to minicomputer, as shown in the pictures above. The system uses a 40-pin GPIO connector.


The product is compatible with Raspberry Pi B+

The manufacturer provides alibrary of Python for users of the Raspberry Pi.

Modes of operation

The power of the motors was separated from theRaspberry Pi B+. The voltage from the range of 5 Volts to 28 Volts should be connected to VIN and GND pins. Power of logic part of 3.3 V is consumed from minicomputer.




The following table shows which pins of the Raspberry Pi are used by driver of the motors:


Pin RPi


Pin of the


5 Motor 1 SF

Status pin. By default, in the high state. When an error of driver is detected, the driver switches to a low state.

6 Motor 2 SF

Status pin. By default, in the high state. When an error of driver is detected, the driver switches to a low state.

12 Motor 1 PWM

The PWM inputs to control the rotation speed of the motor.

The maximum PWM frequency is 20 kHz.

13 Motor 2 PWM

The PWM inputs to control the rotation speed of themotor.

The maximum PWM frequency is 20 kHz.

22 Motor 1 EN

By default, in the low state, it indicates the disabled outputs of the motors. To run the driver, you must specify the highstatus.

23 Motor 2 EN By default, in the low state, it indicates the disabled outputs of the motors. To run the driver, you must specify the high status.
24 Motor 1 DIR

Pin to choose the direction of rotation. In the low state, the current flows from output A to B. In high state - from B to A.

25 Motor 2 DIR Pin to choose the direction of rotation. In the low state, the current flows from output A to B. In high state - from B to A.


Modes of operation

The table shows the operation modes depending on the zones:


EN DIR PWM MxA MxB Operation mode
1 0 PWM PWM (H/L) L Forward rotation at a certain speed PWM %.
1 1 PWM L PWM (H/L) Back rotationat a certain speed PWM %.
1 x 0 L


Braking (outputs connected to ground).
0 x x Z Z Disabled outputs.


The use of additional pins of module MC33926

The remaining inputs and outputs are not connected to the Raspberry Pi, however, they are available directly from the module. Board sets some of the outputs to high or low status through the ways which should be stopped before you connect them to something else. The following table shows the default settings of the configuration of these pins.


Pin of


Description The default configuration

Disabled input 1

(high state)

By default, disabled (low state), connected via interruptible way.


Disabled input 2

(low state)

By default, disabled(highstate) connected via interruptibleway.

SLEW The choice of rate of rotation

By default, in high state - fast rotations, connected via interruptibleway.

INV Inversion of inputs Internally pulled to ground.

Feedback - output to measure the current

Connected via a resistor and a low-pass filter, the sensitivity is approx. 360 mV/A.


Raspberry Pi power supply

The device provides power to the minicomputer from the input voltage of module(VIN). To stabilize the voltage required forthe Raspberry Pi5 V, you can solderthe converter D24V10F5in specially prepared holes 5 V (output voltage), GND (ground), VOUT (supply voltage of motor).

Voltage to 5.0 V
Voltage from 28.0 V
Current 4 A
Channels 2
Package width 0 cm
Package weight 0.029 kg

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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