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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.
|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.|
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. We recommend that you use the SAF2000 for any motor with a coil current between 1.5 and 5 amperes, and the SAF1000 for motors above 5A.
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|
|Image||Part Number||Price||Step Angle||Rated Torque||Maximum Motor Speed||Recommended Voltage||Shaft Diameter||Weight||Gear Ratio|
|3320_0||$16.00||1.8°||520 g·cm||426 RPM||12 V DC||5 mm||111.4 g||—|
|3321_0||$36.00||0.067°||14 kg·cm||80 RPM||12 V DC||6 mm||217.5 g||26 103⁄121 : 1|
|3322_0||$38.00||0.018°||32 kg·cm||20 RPM||12 V DC||6 mm||243.6 g||99 1044⁄2057 : 1|
|3323_0||$16.00||1.8°||1.2 kg·cm||2150 RPM||12 V DC||5 mm||200 g||—|
|3324_0||$16.00||1.8°||3.3 kg·cm||2150 RPM||12 V DC||5 mm||289 g||—|
|3325_0||$40.00||0.35°||18 kg·cm||415 RPM||12 V DC||8 mm||457 g||5 2⁄11 : 1|
|3326_0||$42.00||0.13°||30 kg·cm||150 RPM||12 V DC||8 mm||502 g||13 212⁄289 : 1|
|3327_0||$44.00||0.067°||30 kg·cm||80 RPM||12 V DC||8 mm||503 g||26 103⁄121 : 1|
|3328_0||$46.00||0.035°||48 kg·cm||40 RPM||12 V DC||8 mm||564 g||50 4397⁄4913 : 1|
|3329_0||$48.00||0.018°||48 kg·cm||20 RPM||12 V DC||8 mm||564 g||99 1044⁄2057 : 1|
|3330_0||$28.00||0.9°||11.2 kg·cm||1075 RPM||12 V DC||1⁄4″||695 g||—|
|3332_0||$70.00||0.42°||46.6 kg·cm||375 RPM||12 V DC||12 mm||1.2 kg||4 1⁄4 : 1|
|3333_0||$72.00||0.12°||150 kg·cm||116 RPM||12 V DC||12 mm||1.3 kg||15 3⁄10 : 1|
|3334_0||$74.00||0.023°||240 kg·cm||25 RPM||12 V DC||12 mm||1.5 kg||76 49⁄64 : 1|
|3335_0||$60.00||1.8°||30 kg·cm||200 RPM||30 V DC||12 mm||1.8 kg||—|
|3340_0||$20.00||0.9°||3.3 kg·cm||1075 RPM||12 V DC||5 mm||288 g||—|
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 Primer. 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:
|Image||Part Number||Price||Number of VINT Ports||Controlled By|
|HUB5000_0||$60.00||6||Local Network (Ethernet or Wi-Fi)|
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.
|Image||Part Number||Price||Cable Length|
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|
|Image||Part Number||Price||Power Supply Current||Output Voltage||Wall Plug Style|
|3022_0||$10.00||2 A||12 V||Australian|
|3023_1||$10.00||2 A||12 V||European|
|3024_1||$10.00||2 A||12 V||North American|
|3025_0||$10.00||2 A||12 V||British|
|3084_0||$1.50||500 mA||12 V||European|
|3085_0||$1.50||500 mA||12 V||North American|
|3086_0||$10.00||1 A||24 V||North American|
|PSU4013_0||$20.00||2.5 A||24 V||—|
|PSU4014_0||$40.00||5 A||24 V||—|
|PSU4015_0||$20.00||1 A||24 V||—|
|PSU4016_0||$40.00||15 A||24 V||—|
|PSU4017_0||$75.00||15 A||24 V||—|
|PSU4018_0||$20.00||5 A||12 V||—|
You can use a pigtail wire if you want to avoid removing the barrel jack connector from your supply's cord:
|Image||Part Number||Price||Connector A||Connector B||Cable Length||Cable Gauge|
|3031_0||$2.75||Power Jack 5.5 x 2.1mm (Female)||2 Loose Wires||250 mm||20 AWG|
Welcome to the STC1002 user guide! In order to get started, make sure you have the following hardware on hand:
Next, you will need to connect the pieces:
Now that you have everything together, let's start using the STC1002!
In order to demonstrate the functionality of the STC1002, the Phidget Control Panel running on a Windows machine will be used.
The Phidget Control Panel is available for use on both macOS and Windows machines.
To open the Phidget Control Panel on Windows, find the icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel
To open the Phidget Control Panel on macOS, open Finder and navigate to the Phidget Control Panel in the Applications list. Double click on the icon to bring up the Phidget Control Panel.
For more information, take a look at the getting started guide for your operating system:
Linux users can follow the getting started with Linux guide and continue reading here for more information about the STC1002.
After plugging the STC1002 into your computer and opening the Phidget Control Panel, you will see something like this:
The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:
The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.
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.
|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|
|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|
|Recommended Wire Size||10 - 12 AWG|
|Operating Temperature Min||-20 °C|
|Operating Temperature Max||85 °C|
* Power consumption varies based on supply power. See the technical section of 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|
|October 2019||0||112||Fixed msfollower bug|
|Bipolar Stepper Controller||Stepper||0|
|Product||Controller Properties||Electrical Properties|
|Image||Part Number||Price||Motor Position Resolution||Stepper Velocity Resolution||Stepper Velocity Max||Available Current per Coil Max|
|1067_0B||$90.00||1⁄16 Step (40-Bit Signed)||1 1/16 steps/sec||250000 1/16 steps/sec||4 A|
|STC1002_0||$80.00||1⁄16 Step (40-Bit Signed)||1 1/16 steps/sec||115000 1/16 steps/sec||8 A|
|STC1003_0||$40.00||1/16 Step (40-Bit Signed)||1 1/16 steps/sec||115000 1/16 steps/sec||4 A|