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...
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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 (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- LiPo
- A LiPo (lithium polymer) battery is a rechargeable lithium battery widely used in portable projects because it is light and compact. LiPo cells need correct charging circuitry and careful handling to stay safe, so equipment that supports LiPo generally includes charging or protection hardware suited to 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 single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- 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
Source Code
Open-source libraries, firmware & example projects for this product
Arduino sketches to pass sensor data between two Artemis's via BLE.
2493e63
over 4 years ago
· 32 commits
- Arduino_Examples Swapping "A" and "B" in the central/peripheral sketches over 4 years ago
- Documentation Clean up images for tutorial over 4 years ago
- MakeCode_Examples Update README.md over 4 years ago
- Python_Examples Include Basic RP2040 Example over 4 years ago
- LICENSE.md Update LICENSE.md over 4 years ago
- README.md Update README.md over 4 years ago
Related Tutorials
Free guides on learn.littlebird.com.au