GSM2 Stepper Motor Driver

Manufactured in the UK


The GSM2 is a standalone drive board designed to drive a stepper motor in unipolar mode. It is done either with or without forcing resistors connected between motor commons and supply voltage.

When using the logic connections, you are able to select full, half or wave mode and direction and speed external clock. The GSM2 drive board allows an enable and disable input for various start/stop control options.

Compatible with any four phase unipolar stepper motors up to 2A/40Vdc per phase with full, half and wave modes able to selected.

Please note: The stepper motor used with the board must have four phases and five, six or eight wires.



Typical Application Example


Motor speed is variable and able to be selected, on board, using an adjustable on-board clock controlled by means of a trimmer potentiometer, or alternatively can be externally controlled by logic connections.

Logic input/outputs are TTL LS and CMOS compatible.

Open drain power MOSFET phase outputs


Turn OFF the power supply before connecting or disconnecting any wiring. Disconnecting the motor with the power ON could easily destroy the drive board.

GSM2 Datasheet booklet

Create a useful A5 size folded application leaflet when the attachment below is downloaded and printed on both sides of two A4 sheets of paper.

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