Wearable EMG Gesture Controller Kit with Arduino Nano + Relay
Build a Wearable EMG Gesture Controller with Arduino Nano & ESP32-C3 – Control Appliances by Flexing Your Fist
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Control a lamp or appliance with a simple flex of your fist using your own muscle signals. This kit captures electromyography (EMG) data from your forearm, classifies a clenched fist versus relaxation with an Arduino Nano, and transmits the command wirelessly via an ESP32-C3 to a 5V relay module. It’s a complete wearable bioelectronics project that turns your muscle activity into a switch, perfect for advanced prototyping in biomedical IoT.
What You'll Build
An armband-mounted device that reads muscle activity through electrode patches, distinguishes between a flex and relaxation gesture in real time, and toggles a relay wirelessly. The ESP32-C3 streams the gesture over BLE, so you can control the relay from a smartphone or integrate it into a home automation dashboard. You’ll leave your desk with a working prototype that demonstrates biosignal acquisition, on-edge classification, and Bluetooth command execution.
What You'll Learn
- Sampling and filtering raw EMG signals with the Muscle BioAmp Candy
- Implementing threshold-based gesture recognition algorithms on Arduino Nano
- Transmitting BLE characteristics from ESP32-C3 to trigger external hardware
- Integrating LiPo battery, charging module, and relay in a compact wearable form factor
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| Muscle BioAmp Candy | 1 |
| ESP32-C3 Super Mini | 1 |
| Electrode Patch | 6 |
| 3.7V LiPo 500mAh | 1 |
| TP4056 Module | 1 |
| 5V Relay Module | 1 |
| PCB Prototype Board | 2 |
| Velcro Forearm Band | 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
B.Tech ECE and EEE students building their final-year biomedical or IoT projects will find this an ideal hardware foundation. Smart India Hackathon teams needing a reliable gesture-triggered actuation subsystem can save days of integration. Makers at IITs, NITs, VIT, and BITS Pilani exploring wearable human-machine interfaces will appreciate the real-time biosignal chain. CBSE Class 11-12 students entering bioelectronics competitions with faculty guidance will also succeed with the structured AI support.
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?
The included QR code opens our AI companion trained on this project; you can also message us on WhatsApp for human escalation.
Do I need prior experience with EMG sensors?
This is an advanced kit; familiarity with Arduino IDE and basic signal processing is recommended, but the AI guide walks you through electrode placement and calibration.
Can I control AC appliances safely?
The 5V relay can switch up to 10A AC, but for mains voltage, ensure proper insulation and consult an electrician if you’re new to high-voltage circuits. Always disconnect power before wiring.
What kind of battery life can I expect?
With the 500mAh LiPo and efficient BLE transmission, you’ll get around 4-6 hours of continuous gesture monitoring before recharging via the TP4056 module.
Muscle BioAmp on forearm. Nano classifies flex fist and relax. ESP32-C3 BLE sends gesture to IoT relay.
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