This powerful motor controller allows variable speed and direction control of two large, brushed DC motors using a simple serial interface and provides several advanced features, such as motor acceleration control and configurable current limiting.
Qik 2s12v10 bottom view with dimensions
The qik 2s12v10 adds a comprehensive yet easy-to-use, high-power option to Pololu’s line of motor controllers. The compact board—it’s almost the same size as the dual VNH2SP30 carrier board by itself—allows any microcontroller or computer with a serial port to drive two brushed DC motors with full direction and speed control, providing up to 13 A (continuous) per motor channel without a heat sink and tolerating peaks as high as 30 A.
The improvements over competing products include:
For a lower-power version of this controller, please consider the qik 2s9v1. For similar devices that support additional features and control interfaces, please consider the Simple High-Power Motor Controllers, TReX motor controller, and jrk 12v12 motor controller with feedback. For a robot controller based on the qik’s drivers, please consider the Orangutan X2 robot controller, which connects the VNH2SP30s to a user-programmable ATmega1284 AVR microcontroller.
Qik 2s12v10 top view with pins and key components labeled
| Motor channels: | 2 |
|---|---|
| Operating voltage: | 6 – 16 V |
| Continuous output current per channel: | 13 A |
| Peak output current per channel: | 30 A |
| Auto-detect baud rate range: | 1200 – 115,200 bps |
| Available fixed baud rates: | 115,200 bps, 38,400 bps, 9600 bps |
| Available PWM frequencies: | 19.7 kHz, 9.8 kHz, 2.5 kHz, 1.2 kHz, 310 Hz, 150 Hz |
| Reverse voltage protection?: | Y |
| Motor driver: | VNH2SP30 x2 |
Pololu qik 2s12v10 dual serial motor controller with included hardware |
Pololu qik 2s12v10 dual serial motor controller with included hardware soldered in place |
The qik ships with a 12×1 straight 0.100" male header strip, a 3×2 straight 0.100" male header strip, three 2-pin terminal blocks, and three red shorting blocks.
For the most compact installation, you can solder wires directly to the qik pins themselves and skip using the included hardware. For high-current installations, you should avoid using the supplied terminal blocks, which are rated for up to 15 A, and instead directly solder the motor and power supply wires to the pads.
The included hardware allows you to make less permanent connections. You can break the 12×1 header strip into a 6×1 piece and two 2×1 pieces and solder these strips into the qik’s logic pins where you plan on making connections, or you can use a pair of pliers to pull out the two header pins in the original 12×1 strip for which the qik has no holes and solder the entire strip to the qik’s logic pins. You can see this latter approach in the picture above. You can then make your own cables that have female headers on them and plug these onto the male headers on your qik, or you can solder the pins to the other side of the board and simply plug your qik into a breadboard. You might also consider using a 0.100" right-angle male header strip (not included) for a lower profile.
The 3×2 header strip can be soldered to the jumper pins as shown above, which lets you make use of the included shorting blocks, and the included terminal blocks lock together to make a single, 6-pin strip that you can solder to the power side of the board.
We have written a basic Arduino library for the qik dual serial motor controllers that makes it simple to interface these controllers with an Arduino. The library handles the details of serial communication with the qik, allowing two brushed DC motors to be controlled easily.
| Size: | 1.86" x 2.15" x 0.28"1 |
|---|---|
| Weight: | 14 g1 |
| Motor driver: | VNH2SP30 x2 |
|---|---|
| Motor channels: | 2 |
| Control interface: | non-inverted TTL serial (2-way); RS-232 serial (1-way)2 |
| Minimum operating voltage: | 6 V |
| Maximum operating voltage: | 16 V |
| Continuous output current per channel: | 13 A |
| Peak output current per channel: | 30 A |
| Current sense: | 0.13 V/A |
| Maximum PWM frequency: | 19.7 kHz3 |
| Minimum logic voltage: | 2.7 V |
| Maximum logic voltage: | 5.5 V |
| Reverse voltage protection?: | Y |
Qik 2s12v10 User’s Guide (Printable PDF)
User’s guide for the Pololu Qik 2s12v10 Dual Serial Motor Controller.
Pololu Serial Transmitter utility for Windows (Printable PDF)
A simple serial transmitter utility for Windows that lets you transmit sequences of bytes at a selectable baud rate to a selectable COM port. This program can be conveniently used to send commands to our serially controllable devices.
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