PololuPololu· Motor control
Jrk 21v3 USB Motor Controller with Feedback (Connectors Soldered)
Manufacturer part no. 1394
$76.95≈ 67.77 €
Price summary
Listed by Pololu at €67.77. Delivered to France, including shipping, VAT and any customs duty, it comes to about €111.32. Prices last checked on 2026-10-01.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
In stock — 5 units
- origin USA
- RoHS3
Estimated landed cost
| Item | €67.77 |
|---|---|
| Shipping | €25.00 |
| VAT (20%) | €18.55 |
| Total delivered | €111.32 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Volume pricing
| Qty | Unit price | Saving |
|---|---|---|
| ≥ 1 | $76.95 | |
| ≥ 5 | $70.79 | −8 % |
| ≥ 25 | $65.13 | −15 % |
Datasheets & documents
- 📄 Pololu Jrk USB Motor Controller User’s Guide
- 📄 Pololu USB Software Development Kit
- 📄 Application Note: Using AutoHotkey with Pololu USB Products
- 📄 Jrk Motor Controller Windows Drivers and Software (release 121204)
- 📄 Jrk 21v3 settings for linear actuators
- 📄 Dimension diagram of the Pololu Jrk 21v3 USB Motor Controller with Feedback
- 📄 3D model of the Pololu Jrk 21v3 USB Motor Controller with Feedback
- 📄 Pololu Jrk 21v3 USB Motor Controller with Feedback drill guide
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- 📄 R2D2 dome position control
- 📄 Microsoft .NET Framework 3.5
Price history
2 price/stock records since 8/4/2026
Specifications (automatically extracted)
Electrical
| Frequency max. | 20 000 Hz |
| Voltage max. | 28 V |
| Voltage min. | 5 V |
Mechanical
| Weight | 6.52 g |
Other characteristics
| Continuous output current per channel | 3 A |
| Current sense | 0.5 V/A |
| Maximum logic voltage | 5 V |
| Minimum logic voltage | 4 V |
| Motor channels | 1 |
| Peak output current per channel | 5 A |
| Control interface | USB; non-inverted TTL serial;<br/> RC servo pulses; analog voltage |
| Motor driver | MC33926 |
| Partial kit | No |
Description
The Jrk 21v3 motor controller is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio control (RC). The controller can be used with feedback for closed-loop speed or position control, or it can be used without feedback as an open-loop speed control. The continuous output current is approximately 3 A in the recommended operating range of 8 V to 28 V, with derated performance down to 5 V and transient protection to 40 V. This version ships with connectors installed as shown (no soldering required).
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