Getting Started with the MyoWare® 2.0 Muscle Sensor Ecosystem

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Contributors: QCPete, bboyho
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MyoWare 2.0 Arduino Shield

The MyoWare 2.0 Arduino Shield is designed to easily connect up to six MyoWare 2.0 Muscle Sensors and Link Shields using 3.5mm TRS-to-TRS audio cables. The board comes pre-populated with male headers so all you need to do is stack it on your Arduino and connect the sensors to read up to six muscle groups! The Arduino shield form-factor mates directly with development boards that have the Arduino Uno R3 standard footprint. You'll need a MyoWare 2.0 Link Shield and TRS-to-TRS cable for each MyoWare 2.0 Muscle Sensor.

MyoWare 2.0 Arduino Shield

MyoWare 2.0 Arduino Shield

DEV-18426
$9.95

You'll need a TRS-to-TRS cable to link the boards together. Of course, you could solder wire to a TRS connector as well to make your own. Just make sure to solder wires to the correct pins.

Audio Cable TRS - 1m

Audio Cable TRS - 1m

CAB-18983
$1.95
TRS Audio Plug - 3.5mm (Metal)

TRS Audio Plug - 3.5mm (Metal)

COM-15438
$0.95
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Hardware Overview

The top side of the board includes the TRS connectors and the QR code. Feel free to take out your smartphone and scan the QR code to head on over MyoWare's official site! The bottom side has the male headers to mate with female headers on Arduino development boards with an R3 footprint.

Top View of the MyoWare 2.0 Arduino Shield Bottom View of the MyoWare 2.0 Arduino Shield
Top Side Bottom Side

3.5mm TRS Connectors

On the top side of the board you will find six 3.5mm TRS jacks. Each connector is connected to power and your Arduino's analog pins ranging from A0 to A5.

TRS Connectors

The 3.5mm TRS Connector is connected to the following electrode pins.

Electrode Pin TRS Pin
Ground [GND] Sleeve
Voltage [VIN] Ring
ENV/RECT/RAW [OUTPUT] Tip

Reserved Pins

The 5V, 3.3V, GND net, and analog pins (A0 - A5) are reserved for the shield.

Reserved Pins

Jumpers

There's not too much going on the bottom of the board. On the back, there is a jumper labeled as PWR. By default, the 3-way jumper connects the 5V pin and the 5V plane on the back of the board. The center pad is connected to the TRS connectors to power any MyoWare 2.0 Muscle Sensors through the Link Shield. Cut the trace and add a solder blob between the center pad and 3.3V for an alternative voltage. For more information on modifying the jumpers, check out our tutorial on working with jumper pads and PCB traces.

Power Jumper

Board Dimensions

The shield uses the Arduino Uno R3 form factor and has board dimensions of 53.34mm x 59.69mm (2.10” x 2.35”).

Board Dimensions