Products for USB Sensing and Control
The STC1002 allows you to control a bipolar stepper motor (up to 8A). This Phidget connects to your computer through a VINT Hub and requires an 8-30V DC power supply.
Using motor controllers with large motors can pose a risk for your power supply. If your supply does not have protective features built-in, you can use a Power Guard Phidget to prevent damage from power spikes from back EMF that is generated when motors brake or change direction.
| Product | |
|---|---|
| Part Number | Price |
 Power Guard Phidget 30V 5A
|
$10.00 |
The STC1002 can control both unipolar and bipolar motors, but in almost all cases you're better off with a bipolar motor due to their increased power and more precise step angles. If you care about torque, large motors with high gear ratios are your best bet. If you car about speed, motors with no gearbox and high step angles are better. If you want precision, steppers without gearboxes and low step angles are best because while gearboxes do result in smaller steps, they also introduce a flat 1-3 degrees of positional error due to backlash in the gears.
| Product | Motor Properties | Electrical Properties | Physical Properties | Gearbox Properties | ||||
|---|---|---|---|---|---|---|---|---|
| Part Number | Price | Step Angle | Rated Torque | Maximum Motor Speed | Recommended Voltage | Shaft Diameter | Weight | Gear Ratio |
 NEMA11 - 1.8 Degree - 0.67A Stepper - Gearless
|
$16.00 | 1.8° | 520 g·cm | 1300 RPM | 24 V DC | 5 mm | 111.4 g | — |
 NEMA11 - 1.8 Degree - 1.5A Stepper - 27:1 Gearbox
|
$38.00 | 0.067° | 14 kg·cm | 50 RPM | 24 V DC | 6 mm | 217.5 g | 26 103⁄121 : 1 |
 NEMA11 - 1.8 Degree - 0.67A Stepper - 100:1 Gearbox
|
$38.00 | 0.018° | 32 kg·cm | 13 RPM | 24 V DC | 6 mm | 243.6 g | 99 1044⁄2057 : 1 |
 NEMA14 - 1.8 Degree - 1A Stepper - Gearless
|
$16.00 | 1.8° | 1.2 kg·cm | 1000 RPM | 24 V DC | 5 mm | 200 g | — |
 NEMA17 - 0.9 Degree - 1.68A Stepper - Gearless
|
$20.00 | 0.9° | 3.3 kg·cm | 400 RPM | 24 V DC | 5 mm | 288 g | — |
 NEMA17 - 1.8 Degree - 1.68A Stepper - Gearless
|
$16.00 | 1.8° | 3.3 kg·cm | 1000 RPM | 24 V DC | 5 mm | 289 g | — |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 5.18:1 Gearbox
|
$40.00 | 0.35° | 18 kg·cm | 200 RPM | 24 V DC | 8 mm | 457 g | 5 2⁄11 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 14:1 Gearbox
|
$42.00 | 0.13° | 30 kg·cm | 70 RPM | 24 V DC | 8 mm | 502 g | 13 212⁄289 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 27:1 Gearbox
|
$44.00 | 0.067° | 30 kg·cm | 40 RPM | 24 V DC | 8 mm | 503 g | 26 103⁄121 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 51:1 Gearbox
|
$46.00 | 0.035° | 48 kg·cm | 20 RPM | 24 V DC | 8 mm | 564 g | 50 4397⁄4913 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 100:1 Gearbox
|
$48.00 | 0.018° | 48 kg·cm | 10 RPM | 24 V DC | 8 mm | 564 g | 99 1044⁄2057 : 1 |
 NEMA23 - 0.9 Degree - 2.8A Stepper - Gearless
|
$28.00 | 0.9° | 11.2 kg·cm | 500 RPM | 24 V DC | 1⁄4″ | 695 g | — |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 4.25:1 Gearbox
|
$70.00 | 0.42° | 46.6 kg·cm | 165 RPM | 24 V DC | 12 mm | 1.2 kg | 4 1⁄4 : 1 |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 15:1 Gearbox
|
$72.00 | 0.12° | 150 kg·cm | 50 RPM | 24 V DC | 12 mm | 1.3 kg | 15 3⁄10 : 1 |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 77:1 Gearbox
|
$74.00 | 0.023° | 240 kg·cm | 10 RPM | 24 V DC | 12 mm | 1.5 kg | 76 49⁄64 : 1 |
 NEMA34 - 1.8 Degree - 4A Stepper - Gearless
|
$60.00 | 1.8° | 30 kg·cm | 200 RPM | 30 V DC | 12 mm | 1.8 kg | — |
This Phidget is a smart device that must be controlled by a VINT Hub. For more information about VINT, have a look at the VINT Overview page. You can use a Phidget Cable to simply and easily connect the two devices. Here's a list of all of the different VINT Hubs currently available:
| Product | Board Properties | |||
|---|---|---|---|---|
| Part Number | Price | Number of VINT Ports | VINT Communication Speed Max | Controlled By |
 VINT Hub Phidget
|
$40.00 | 6 | 1 Mbit/s | USB (Mini-USB) |
 1-Port VINT Hub Phidget
|
$24.00 | 1 | 1 Mbit/s | USB (USB-A) |
 VINT Hub Phidget
|
$35.00 | 6 | 1 Mbit/s | USB (Mini-USB) |
 VINT Hub Phidget
|
$30.00 | 6 | 100 kbit/s | USB (Mini-USB) |
 Wireless VINT Hub
|
$60.00 | 6 | 100 kbit/s | Local Network (Ethernet or Wi-Fi) |
 PhidgetSBC4
|
$120.00 | 6 | 100 kbit/s | — |
Use a Phidget cable to connect this device to the hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.
| Product | Physical Properties | |
|---|---|---|
| Part Number | Price | Cable Length |
 Phidget Cable 10cm
|
$1.50 | 100 mm |
 Phidget Cable 30cm
|
$1.75 | 300 mm |
 Phidget Cable 60cm
|
$2.00 | 600 mm |
 Phidget Cable 60cm
|
$2.00 | 600 mm |
 Phidget Cable 90cm
|
$2.00 | 900 mm |
 Phidget Cable 120cm
|
$2.25 | 1.2 m |
 Phidget Cable 150cm
|
$2.50 | 1.5 m |
 Phidget Cable 180cm
|
$2.75 | 1.8 m |
 Phidget Cable 350cm
|
$3.00 | 3.5 m |
 Phidget Cable Kit
|
$10.00 | 80 mm |
This Phidget requires a power supply between 10 and 30V DC. We recommend that you use a 12V DC power supply for small steppers and a 24V DC supply for larger ones. If you're not sure, check the data sheet for your motor for the recommended power supply voltage (not to be confused with the coil voltage, which is usually much lower). For best results, we recommend getting a 5 amp supply. Select the power supply from the list below that matches your region's wall socket type.
| Product | Electrical Properties | Physical Properties | ||
|---|---|---|---|---|
| Part Number | Price | Power Supply Current | Output Voltage | Wall Plug Style |
 Power Supply 24VDC 14.6A
|
$40.00 | 14.6 A | 24 V | — |
 Power Supply 24VDC 25A Current Limiting
|
$120.00 | 25 A | 24 V | — |
 Power Supply DIN Mount 24VDC 1A
|
$20.00 | 1 A | 24 V | — |
 Power Supply 12VDC 0.5A - EU
|
$1.50 | 500 mA | 12 V | European |
 Power Supply 12VDC 0.5A - US
|
$1.50 | 500 mA | 12 V | North American |
 Power Supply 12VDC 2.0A - AU
|
$10.00 | 2 A | 12 V | Australian |
 Power Supply 12VDC 2.0A - EU
|
$10.00 | 2 A | 12 V | European |
 Power Supply 12VDC 2.0A - UK
|
$10.00 | 2 A | 12 V | British |
 Power Supply 12VDC 5A
|
$20.00 | 5 A | 12 V | — |
 Power Supply 24VDC 1.0A - US
|
$10.00 | 1 A | 24 V | North American |
 Power Supply 24VDC 2.5A
|
$20.00 | 2.5 A | 24 V | — |
 Power Supply 24VDC 5A
|
$40.00 | 5 A | 24 V | — |
 Power Supply-12VDC 2.0A - US
|
$10.00 | 2 A | 12 V | North American |
You can use a pigtail wire if you want to avoid removing the barrel jack connector from your supply's cord:
| Product | Physical Properties | ||||
|---|---|---|---|---|---|
| Part Number | Price | Connector A | Connector B | Cable Length | Cable Gauge |
 Female Pigtail 5.5x2.1mm
|
$2.75 | Power Jack 5.5 x 2.1mm (Female) | 2 Loose Wires | 250 mm | 20 AWG |
Control a bipolar stepper motor ( up to 8A) with the STC1002. With this Phidget, you can set your motor's position, velocity, and acceleration.
You can use your Control Panel to explore your Phidget's channels.
1. Open your Control Panel, and you will find the 8A Stepper Phidget channel:
2. Double click on the channel to open an example program. This channel belongs to the Stepper channel class:
In your Control Panel, double click on "8A Stepper Phidget":
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
Firmware Upgrade
MacOS users can upgrade device firmware by double-clicking the device row in the Phidget Control Panel.
Linux users can upgrade via the phidget22admin tool (see included readme for instructions).
Windows users can upgrade the firmware for this device using the Phidget Control Panel as shown below.
Firmware Downgrade
Firmware upgrades include important bug fixes and performance improvements, but there are some situations where you may want to revert to an old version of the firmware (for instance, when an application you're using is compiled using an older version of phidget22 that doesn't recognize the new firmware).
MacOS and Linux users can downgrade using the phidget22admin tool in the terminal (see included readme for instructions).
Windows users can downgrade directly from the Phidget Control Panel if they have driver version 1.9.20220112 or newer:
Firmware Version Numbering Schema
Phidgets device firmware is represented by a 3-digit number. For firmware patch notes, see the device history section on the Specifications tab on your device's product page.
| Board Properties | |
|---|---|
| Controlled By | VINT |
| VINT Communication Speed Max | 10 kbit/s |
| Controller Properties | |
| Motor Type | Bipolar Stepper |
| Number of Motor Ports | 1 |
| Motor Position Resolution | 1⁄16 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/sec² |
| Stepper Acceleration Min | 2 1⁄16 steps/sec² |
| Stepper Acceleration Max | 1E+07 1⁄16 steps/sec² |
| Sampling Interval Min | 100 ms/sample |
| Sampling Interval Max | 60 s/sample |
| Electrical Properties | |
| Available Current per Coil Max | 8 A |
| Supply Voltage Min | 10 V DC |
| Supply Voltage Max | 30 V DC |
| Current Consumption Min | 50 mA |
| Current Consumption Max | 7 A |
| Current Consumption Min (VINT Port) | 500 μA |
| Current Consumption Max (VINT Port) | 1 mA |
| Quiescent Power Consumption Max | * 200 mW |
| Replacement Fuse | 10A Slow Blow Blade Type, Regular or Micro |
| Isolation Voltage (DC) | 5 kV DC |
| Physical Properties | |
| Recommended Wire Size | 10 - 12 AWG |
| Operating Temperature Min | -20 °C |
| Operating Temperature Max | 85 °C |
| Customs Information | |
| Canadian HS Export Code | 8471.80.00 |
| American HTS Import Code | 8471.80.40.00 |
| Country of Origin | CN (China) |
* Power consumption varies based on supply power. See the User Guide for details.
The STC1002 is an upgraded version of the discontinued STC1000.
| Date | Board Revision | Device Version | Comment |
|---|---|---|---|
| September 2018 | 0 | 101 | Product Release |
| April 2019 | 0 | 102 | Fixed bug that caused STC1002 to become unresponsive |
| May 2019 | 0 | 110 | Added failsafe timer functionality |
| Sept 2019 | 0 | 111 |
|
| October 2019 | 0 | 112 | Fixed msfollower bug |
| August 2020 | 0 | 113 | Fixed crash that made STC1002 unresponsive until power cycle |
| November 2020 | 0 | 114 | Fixed crash that could occur at low acceleration |
| March 2022 | 0 | 121 | Failsafe timer now resets on any successful packet. Step mode now waits for new velocity before moving. |
| Channel Name | API | Channel |
|---|---|---|
| Bipolar Stepper Controller | Stepper | 0 |
| Product | Controller Properties | Electrical Properties | |||
|---|---|---|---|---|---|
| Part Number | Price | Motor Position Resolution | Stepper Velocity Resolution | Stepper Velocity Max | Available Current per Coil Max |
 4A Stepper Phidget
|
$40.00 | 1⁄16 Step (40-Bit Signed) | 1 1⁄16 steps/sec | 115000 1⁄16 steps/sec | 4 A |
 8A Stepper Phidget
|
$80.00 | 1⁄16 Step (40-Bit Signed) | 1 1⁄16 steps/sec | 115000 1⁄16 steps/sec | 8 A |
 PhidgetStepper Bipolar HC
|
$90.00 | 1⁄16 Step (40-Bit Signed) | 1 1⁄16 steps/sec | 250000 1⁄16 steps/sec | 4 A |
