MyoWare 2.0 LED Shield

Item number 59288 Brand Sparkfun Model DEV-18387 Share Write a review
MyoWare 2.0 LED Shield

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The MyoWare® 2.0 LED Shield is a sophisticated tool that displays the intensity of a muscle's signal and powers the MyoWare 2.0 Muscle Sensor with an in-built battery. The shield features a 10-segment blue bar graph that visually represents the magnitude of the measured signal. The more muscle activation recorded, the higher the LEDs on the board will light up. The shield is equipped with snap connectors, allowing it to be easily stacked on top of the MyoWare 2.0 Muscle Sensor. Simply flip the switch to the ON position and the sensor will have all the power it needs to perform its myoelectric functions.

The LED Shield comes with a 40mAh single cell, lithium polymer (LiPo) battery soldered onto the board. The battery can be recharged via the USB Type C connector and its dedicated LiPo charging circuit set to a charge rate of 40mA. The board also includes status LEDs for charging (CHG, FULL) and power (VIN). By connecting the MyoWare 2.0 Muscle Sensor to battery power, you can achieve a cleaner signal and eliminate the risk of creating a dangerous current path to the power grid.

The MyoWare 2.0 LED Shield is perfect for monitoring muscle activity during a workout, as a teaching tool, or to add a unique myoelectric touch to your Halloween costume. However, please note that the MyoWare and the LED Shield are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation treatment, or prevention of disease, in humans or other animals.

The MyoWare® 2.0 ecosystem consists of shields that easily interface with the MyoWare® 2.0 Muscle Sensor, a low-cost, Arduino-compatible, all-in-one electromyography (EMG) sensor from Advancer Technologies. The innovative connector system allows users to easily snap shields together with a compact low profile and connect to a microcontroller's analog input to measure raw, filtered, and rectified electrical activity of a target muscle. This eliminates the need to solder connections between boards.

This product is a collaboration with Brian Kaminski from Advancer Technologies. A portion of each sale goes back to them for product support and continued development.


  • Input Voltage: 5V via USB Type C Connector
  • Output Voltage (e.g. "VIN"): Nominal Voltage: 3.7V; Fully Charged: 4.2V
  • Power Switch
  • Built-in LiPo Battery: Rated Capacity: 40mAh; Nominal Voltage: 3.7V; Max Charge Current: 1C (40mA)
  • MCP73831 Single Cell LiPo Charge IC: Charge Rate Set to 40mA
  • MyoWare® 2.0 Muscle Sensor Form Factor: 3x Female Snap Pins (Power and EMG Envelope Output)
  • LEDs: VIN, FULL, CHG, 2x 5-Segment Bars
  • Board Dimensions: 46.15mm x 38.00mm


  • Board Dimensions
  • Hookup Guide
  • Advancer Technologies: MyoWare® 2.0: Quickstart Guide (4.37MB), Advanced Guide (9.00MB), Patents [1]
  • MCP73831 Datasheet
  • Polymer Lithium Ion Battery (40mAh): Datasheet, MSDS
  • Arduino Reference Language: ArduinoBLE Library
  • GitHub Example Repo
  • MyoWare 2.0 Ecosystem Page

[1] Note: This product is patent protected. To prevent counterfeit boards, the Eagle design files and GitHub hardware repository are not shared for boards in the MyoWare 2.0 ecosystem.


Brand information
Brand Sparkfun
More infoMyoWare v2 QuickStartGuide
Size info
Length48 mm
Width40 mm
Height9 mm
Weight33 g
€ 34,30€ 28,35 Excl. VAT (NL)
Out of stock In stock with supplier
Delivered in 5 to 10 days
Shipped from € 3,50 (NL) 30 days cooling-off Excellent service

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