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4A Stepper Phidget, STC1003_0


This compact Stepper Phidget gives you control of one bipolar stepper motor from a port on your VINT hub.


If you're looking for a compact solution for controlling a medium-sized stepper motor, the STC1003 is an affordable and convenient option. You can control the position, velocity, and acceleration of the motor by sending commands from your program.

Safety Features

The STC1003 comes equipped with a heatsink to prevent the board from overheating during use. The power terminals on this device are polarity protected: if you happen to hook up the power supply backwards, the device simply won't power up and won't be damaged. A 5-amp automotive-style fuse is also included to protect the board from current spikes from the motor's back-EMF. This Phidget is isolated from input to output, so your VINT hub and computer will be protected if anything goes wrong.

Power Saving Options

For power-conscious users, we also allow for separate control over the current limit and the holding current limit. If you know your motor will be stationary for long periods of time, but still needs a small amount of holding torque to maintain its position, you can set the holding current appropriately without interfering with the running current limit.


warning Make sure the power supply is unplugged before attaching or removing wires from the terminal blocks. Failure to do so could cause permanent damage to the Phidget.



Board Properties

Controlled By


Controller Properties

Motor Type

Bipolar Stepper

Number of Motor Ports


Motor Position Resolution

116 Step (40-Bit Signed)

Position Max

± 1E+15 1/16 steps

Stepper Velocity Resolution

1 1/16 steps/sec

Stepper Velocity Max

115000 1/16 steps/sec

Stepper Acceleration Resolution

1 1/16 steps/sec

Stepper Acceleration Min

2 1/16 steps/sec

Stepper Acceleration Max

1E+07 1/16 steps/sec

Sampling Interval Min

100 ms/sample

Sampling Interval Max

60 s/sample

Electrical Properties

Available Current per Coil Max


Supply Voltage Min

10 V DC

Supply Voltage Max

30 V DC

Current Consumption Min (VINT Port)

500 μA

Current Consumption Max (VINT Port)

1 mA

Quiescent Power Consumption Max

 200 mW

Physical Properties

Recommended Wire Size

10 - 12 AWG

Operating Temperature Min

-20 °C

Operating Temperature Max

85 °C