> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# MyoWare Muscle Sensor

**Type:** Product page · **SKU:** POLOLU-2732 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/myoware-muscle-sensor-39207.html ([markdown](https://core-electronics.com.au/myoware-muscle-sensor-39207.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: DEV-21265.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/DEV-21265

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This muscle sensor from Advancer Technologies measures a muscle’s activity by monitoring the electric potential generated by muscle cells. This is referred to as electromyography (EMG). The sensor amplifies and processes the complex electrical activity of a muscle and converts it into a simple analog signal that can easily be read by any microcontroller with an analog-to-digital converter (ADC), such as an [A-Star](https://www.pololu.com/category/149/a-star-programmable-controllers) or Arduino – or even a [Maestro servo controller](https://core-electronics.com.au/micro-maestro-6-channel-usb-servo-controller-assembled.html) like Pololu show [in this blog post](https://www.pololu.com/blog/334). As the target muscle group flexes, the sensor’s output voltage increases. The exact relationship between the output voltage and the muscle activity can be fine-tuned using an on-board gain potentiometer.

The MyoWare Muscle Sensor is an updated version of Advancer Technologies’ older Muscle Sensor v3 with a number of improvements, notably single-supply operation (no need for a negative voltage supply) and built-in snap connectors for electrodes. Other new features include a raw EMG output, reverse power protection, a power switch, and LED indicators.

In order to attach to skin, the sensor requires three [electrodes](https://core-electronics.com.au/electrodes-for-myoware-muscle-sensors-6-pack.html) (not included) that snap into the sensor’s snap-style connectors, which make it easy to attach and detach electrodes. Two connectors are located directly on the PCB, and the third is located at the end of the attached reference electrode cable. The board’s pins have a 0.1″ pitch and work with [0.1″ male headers](https://core-electronics.com.au/0-100-2-54-mm-breakaway-male-header-1x40-pin-straight.html) and [0.1″ female headers](https://core-electronics.com.au/0-100-2-54-mm-female-header-1x12-pin-straight.html).

For more detailed information about the muscle sensor, including instructions on how to use it, see the [Advancer Technologies MyoWare Muscle Sensor datasheet](https://core-electronics.com.au/attachments/localcontent/AT-04-001_10428e10231.pdf) (1MB pdf). Example Arduino programs can be found on the MyoWare [GitHub page](https://github.com/AdvancerTechnologies/MyoWare_MuscleSensor).

**Features**

- Dimensions: 2.1″ × 0.8″ (excluding reference electrode cable, which is about 3″ long)
- Operating voltage: 2.9 V to 5.7 V (unlike previous sensor versions, no negative supply is required)
- Analog voltage output from 0 V to +Vs (supply voltage)
- Adjustable gain
- Both EMG envelope and raw EMG outputs available
- Embedded electrode connectors – electrodes snap directly into MyoWare (alternatively, external electrode cables can be connected)
- LED Indicators – one power LED, and one LED that brightens when the muscle is flexed
- Power switch
- Reverse voltage protection
- Two mounting holes (suitable for [M3 or #4 screws](https://core-electronics.com.au/10-sets-m3x10-screw-low-profile-hex-head-cap-screw.html))
- Informative [user’s guide](https://core-electronics.com.au/attachments/localcontent/AT-04-001_10428e10231.pdf) (1MB pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/p/o/pololu-2732-1.jpg)