Industrial Robotic Arm Torque Controller Pro
Build a 20kHz Industrial Robotic Arm Torque Controller with Arduino Portenta H7 and SimpleFOC
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
You will assemble a compact DIN‑rail torque controller that drives a BLDC motor with field‑oriented control at 20kHz. The Arduino Portenta H7’s M7 core runs the high‑speed current loop, while the M4 core independently manages trajectory planning, encoder feedback decoding, and configurable safety limits. This architecture delivers the deterministic response required for precision robotic arms, CNC spindles, and custom servo axes.
What You'll Build
A fully enclosed torque controller that regulates phase currents using an AS5600 magnetic encoder and an INA219 current sensor. You will solder the breakout board, mount the DRV8313 driver and buck converter on prototyping PCBs, and pack everything into a DIN‑rail enclosure. The end result is a stand‑alone unit that communicates over serial or I²C and can be integrated into larger robot control systems.
What You'll Learn
- Implement closed‑loop FOC on an STM32H747 Cortex‑M7 at 20kHz using the SimpleFOC library
- Coordinate dual‑core workloads: M7 for torque control, M4 for trajectory generation and safety monitoring
- Interface I²C sensors (AS5600 encoder, INA219) and debug via the integrated OLED display
- Design hard‑wired safety limits that override software commands to protect the motor and load
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta H7 | 1 |
| Portenta Breakout Board | 1 |
| DRV8313 BLDC Driver | 1 |
| BLDC Motor 2204 | 1 |
| AS5600 Encoder | 1 |
| INA219 | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| DIN Rail Enclosure | 1 |
| 24V 5A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is built for advanced makers who need deterministic multi‑axis control — final‑year B.Tech ECE/EEE students at NIT, IIT, VIT, BITS, or engineers entering industrial automation. It is also well‑suited for Smart India Hackathon teams building robotic manipulators, ATL tinkering mentors who want a demonstration of dual‑core real‑time control, and professionals prototyping custom servo drives for factory test rigs.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code inside the box to chat with the AI companion that knows every connection and line of code for this kit. If you still need help, a real engineer replies on WhatsApp within one business day.
Can I use a different BLDC motor or encoder?
The provided firmware is tuned for the 2204 motor and AS5600 encoder. You can modify parameters in the SimpleFOC configuration file; the AI companion can guide you through recalibration for motors up to 24V 5A.
Does the kit include the robotic arm mechanics?
No, this is the electronics and control system only. You integrate the completed torque controller with your own arm structure, joints, and power transmission.
Is the SimpleFOC library already loaded on the Portenta?
The Portenta comes blank. You will follow the AI companion’s step‑by‑step guide to install the library, flash the dual‑core firmware, and verify the 20kHz loop rate.
M7 runs FOC torque control on BLDC at 20kHz via SimpleFOC. M4 handles trajectory planning and safety limits.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items