• uMyo - wearable EMG sensor for measuring muscle activity, worn on the arm
  • uMyo EMG sensor - PCB front and back, with components shown
  • uMyo sensor - PCB with dry electrodes and wet electrode connectors attached
  • uMyo power and charge diagram, with uMyo PCBs connected to LiPo battery, charger PCB and CR2032 battery holder PCB.
  • uMyo electrodes - dry electrode screws and bolts, wet electrode snap buttons
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uDevices

uMyo - wearable EMG sensor

uMyo - wearable EMG sensor

$39.00 USD
$39.00 USD
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168 in stock

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Includes sensor, bracelet and accessories.

uMyo is the only fully open source wireless EMG sensor you can order today. 
Stream raw EMG+FFT data over 2.4 GHz or BLE, and prototype hand-gesture control, prosthetics or sports tech in minutes.

  • Plug-and-play Arduino & ESP32 libraries.
  • Python desktop monitor app (sources on GitHub).
  • Up to 12 sensors on one receiver, <5 ms latency.
  • Certified open-source hardware (OSHWA #UA000003).
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Features

  • Wireless

    Truly wireless – RF or BLE, no mains noise

  • Modular

    Stackable & chainable – share one Li-Po, mix dry/gel electrodes

  • Adaptive

    Dev-friendly – Arduino, ESP32 or Python app with our USB receiver base

A demo from three uMyos where the EMG sensors are placed so that each finger signal is clear:

Specifications

  • Microcontroller: nRF52832 BLE SoC
  • Operational amplifier: AD8293 (additional bias compensation via firmware)
  • Mains noise filter: digital 50/60 Hz filter (auto detects mains frequency)
  • LSM6DSR gyroscope/accelerometer (low noise, 16-bit)
  • Short circuit protection: yes (PTC resettable fuse)
  • Antenna type: 5dB chip antenna
  • Charging: micro USB type C, via separate LiPo charger
  • Weight: 9 g (just the device with dry electrodes attached)

FAQ

FAQ

What's in the package?

Each uMyo sensor comes with:
- 4x dry electrodes + 4x wet electrode buttons  
- 2x PH2.0 JST cables  

Powering uMyo

uMyo EMG sensors can be daisy chained together with JST cables (PH2.0) to share power from a single LiPo battery. A single uMyo sensor can be also powered from a CR2032 coin cell - useful for quick start and testing, although the muscle activity LEDs are turned off in this mode to conserve power.

LiPo charger PCB, CR2032 battery holder, uMyo bracelet and USB-C power cable can all be bought as accessories from us; these items are also included in the uMyo Starter Pack bundle. However, LiPo batteries or CR2032 coin cells are not included because it's hard to ship batteries internationally, so you will have to get them yourself.

How many sensors can I connect?

Up to 12 uMyos can work at the same time, and can use either dry electrodes (with a bracelet), or wet electrodes.

uMyo accessories

Assemble your own uMyo kit or add something extra to your order: