MyoWare 2.0 Power Shield

The SparkFun MyoWare® 2.0 Power Shield is designed to easily power the MyoWare 2.0 Muscle Sensor for remote applications. The MyoWare Power Shield is equipped with snap connectors on the board so you can easily stack it to the top side of the MyoWare Muscle Sensor. Flip the switch to the ON position to give the sensor all the power it needs to work its myoelectric magic.

Each board comes with a 40mAh single-cell, lithium polymer (LiPo) soldered to the board. Recharge the battery through the USB Type C connector and its dedicated LiPo charging circuit set to a charge rate of 40mA. This board also includes status LEDs for charging (CHG, FULL, power (VIN), and envelope (ENV). Connecting the MyoWare 2.0 Muscle Sensor to battery power allows for a cleaner signal while also eliminating the possibility of creating a dangerous current path to the power grid. Use it to power your sensor in portable applications.

Note: MyoWare and the Power 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 a man or other animals.

Get Started with the Myoware 2.0 Power Shield Guide

Features

• 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
  • ENV
  • FULL
  • CHG
• Board Dimensions
  • 53.34mm x 59.69mm

Resources

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