MyoWare 2.0 Muscle Sensor Wireless Kit

The MyoWare® 2.0 Muscle Sensor Wireless Kit is an Arduino-compatible, all-in-one electromyography (EMG) sensor kit designed to facilitate wireless configurations. The kit includes the MyoWare® 2.0 Wireless Shield, which reads data from the MyoWare 2.0 Muscle Sensor and transmits it wirelessly using the ESP32-WROOM module. The shield is powered by a built-in LiPo battery and features snap connectors and low-profile pogo pins for easy stacking.

With the included 20 biomedical sensor pads, a mini screwdriver, a USB A to C cable, a sensor cable, and a Myoware cable shield, this kit provides everything needed to explore muscle sensing technology. The MyoWare 2.0 Muscle Sensor has been redesigned for improved performance and reliability, measuring muscle activity through surface electromyography (sEMG).

When muscles flex, they generate electrical signals that the sensor detects. The harder the muscle flexes, the more motor units are recruited, increasing electrical activity. The sensor analyzes this activity and outputs a signal proportional to the muscle's exertion. The innovative connector system eliminates the need for soldering, making it easy to integrate with the MyoWare 2.0 ecosystem, whether visualizing muscle activity with the LED Shield or reading analog output with an Arduino-compatible board.

Note: Due to the battery, this item may require additional processing time and cannot be shipped via Ground or Economy methods to Alaska or Hawaii.

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The MyoWare 2.0 ecosystem features shields that interface seamlessly with the MyoWare® 2.0 Muscle Sensor, allowing users to easily snap shields together and connect to a microcontroller's analog input to measure muscle activity without soldering.

This product is a collaboration with Brian Kaminski from Advancer Technologies. A portion of each sale supports continued development.

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Includes:

• 1x SparkFun ThingPlus - ESP32 WROOM (USB-C)
• 1x MyoWare 2.0 Wireless Shield
• 1x MyoWare 2.0 Muscle Sensor
• 1x MyoWare 2.0 Cable Shield
• 1x Reversible USB A to C Cable - 2m
• 2x Disposable Surface EMG/ECG/EKG Electrode - 24mm (10 pack)
• 1x Sensor Cable - Electrode Pads (3 connector)
• 1x SparkFun Mini Screwdriver

Features:

MyoWare 2.0 Wireless Shield

• Input Voltage: 5V via USB Type C Connector
• Output Voltage: 3.3V via voltage regulator (RT9080), 3.3V via Qwiic Connector
• ESD Protection Diodes for USB Data Lines
• Ideal Diodes for Protection on the VBATT and VUSB Nets
• Resettable PTC Fuse (Rated 6V/500mA)
• Switches: Power Source, Power ON/OFF
• Built-in LiPo Battery: 40mAh, 3.7V, Max Charge Current: 40mA
• MCP73831 Single Cell LiPo Charge IC: Charge Rate Set to ~40mA
• 3.3V Voltage Regulator
• MyoWare® 2.0 Muscle Sensor Form Factor: 3x Female Snap Pins (Power and EMG Envelope Output)
• Espressif ESP32-WROOM Module
• CH340 USB-to-Serial Converter
• 2x Qwiic Connectors
• 2.2kΩ Pull-Up Resistors
• Button: Reset, General Purpose/Bootloader
• LEDs: PWR - Power Indicator, CHG - Charge Status, 13 - User, ENV - Envelope
• Jumpers: PWR - Power LED, SHLD - USB Shield, REF - Reference Pin, RAW - Raw EMG Output, ENV - Envelope Detector Output, I2C - I²C Pull-Up Resistors
• Board Dimensions: 63.5mm x 38mm
• Weight: ~16.7g

MyoWare 2.0 Muscle Sensor

• Wearable Design
• Supply Voltage: +2.27V to +5.47V
• Input Bias Current: 250pA, max 1nA
• Reverse Polarity Protection
• Three Output Modes: Raw EMG, Rectified, Envelope
• Expandable via Shields
• MyoWare® 2.0 Muscle Sensor Form Factor: 3x Female Snap Pins (Input Electrodes), 3x Male Snap Pins (Power and EMG Envelope Output)
• LED Indicators: VIN, ENV
• Reference Electrode Jumper
• Specially Designed For Microcontrollers
• Adjustable Gain
• Board Dimensions: 37.57mm x 35.90mm

Documents:

MyoWare 2.0 Wireless Shield

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

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^{[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.}

MyoWare 2.0 Muscle Sensor

• Board Dimensions
• Hookup Guide
• Advancer Technologies: MyoWare® 2.0
  • Quickstart Guide
  • Advanced Guide
  • Patents
• Arduino Reference Language: ArduinoBLE Library
• GitHub Example Repo
• MyoWare 2.0 Ecosystem Page

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^{[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.}

SparkFun ThingPlus - ESP32 WROOM (USB-C)

• Schematic
• Eagle Files
• Board Dimensions
• Graphical Datasheet
• Hookup Guide
  • How to Install CH340 Drivers
  • Installing Board Definitions in the Arduino IDE
• Component Datasheets:
  • ESP32-WROOM-32E Module
    • ESP32 SoC
  • MCP73831
  • MAX17048
  • XC6222
  • WS2812
• Qwiic Info Page
• SparkFun Thing Plus Boards
• GitHub Hardware Repository

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