SparkFun
MyoWare 2.0 Power Shield
· MPN: DEV-21868
The 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 sn...
The 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: This item may take longer to process due to the battery installed in the equipment and therefore does not qualify for same-day shipping policy. Additionally, these batteries can not be shipped via Ground or Economy methods to Alaska or Hawaii. Sorry for any inconvenience this may cause.
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.
The MyoWare® 2.0 ecosystem consists of shields that easily interface with the MyoWare® 2.0 Muscle Sensor, which is 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 sales goes back to them for product support and continued development.
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 (2.10” x 2.35”)
Documents:
- 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)
- 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.
Videos
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- LiPo
- A lithium polymer rechargeable battery commonly used in portable electronics projects. It matters because LiPo batteries need correct charging circuitry and care, and this board includes hardware intended for that battery type.
- MCP73831
- A lithium battery charger chip used to safely charge a single-cell LiPo battery. It matters because it lets the board recharge a battery from USB or another input without needing a separate charger module.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- Shield
- An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
Find this product in
Brands
Power & Batteries
Sensors & Input
MyoWare 2.0 Quickstart Guide
Quick Start · 4.4 MB · Click any page to view full size
MyoWare 2.0 Advanced Guide
User Guide · 9.0 MB · Click any page to view full size
MCP73831 Charger IC Datasheet
Datasheet · 823.1 KB · Click any page to view full size
40mAh LiPo Cell Datasheet
Datasheet · 621.4 KB · Click any page to view full size
40mAh LiPo Cell MSDS
Compliance · 751.5 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 729.2 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au