MyoWare 2.0 Wireless Shield

SKU: DEV-23387 Brand: Sparkfun

The MyoWare® 2.0 Wireless Shield is designed to take in readings from the MyoWare 2.0 Muscle Sensor and wirelessly transmit data with the ESP32-WROOM!...

Special Price $34.54 AUD, inc GST

Regular Price $46.05 AUD, inc GST

$31.40 AUD, exc GST

Special pricing ends 28 July 2024

* this special may end earlier than shown

Available with a lead time
Expect dispatch between May 08 and May 13

The MyoWare® 2.0 Wireless Shield is designed to take in readings from the MyoWare 2.0 Muscle Sensor and wirelessly transmit sensor data with the ESP32-WROOM! This shield also includes a built-in LiPo battery to remotely power the muscle sensor and the ESP32 module. The Wireless Shield is equipped with snap connectors and low-profile pogo pins on the board, so you can easily stack it on the top side of the MyoWare 2.0 Muscle Sensor. Simply select a Power Source and flip the power switch to the ON position to give the sensor all the power it needs to work its myoelectric magic.

TThe board's USB type C and CH340 USB-to-serial converter enable programming via serial using the Arduino IDE. As you might expect, a reset button resets the ESP32. Various protection circuits are built into the board: ESD protection diodes for the USB data lines, a resettable PTC fuse for VUSB, and ideal diodes for protection on the VUSB and VBATT nets.

Each board comes with a 40mAh single-cell lithium polymer (LiPo) battery connected to it. The battery can be recharged through the USB Type C connector, and its dedicated LiPo charging circuit is set to a charge rate of about 40mA. Operating your MyoWare 2.0 Muscle Sensor on battery power and transmitting data wirelessly allows for complete isolation from the power grid.

Power is regulated down to 3.3V. Users can select their power source as well as turn on/off the board with included switches. A button to manually place the ESP32 in bootloader mode is populated as well. This button can also be used as a general purpose button as well. The board is equipped with two horizontal Qwiic connectors and 2.2kO pull-up resistors if you decide to include additional Qwiic-enabled devices. Standard 0.1"-spaced plated through holes (PTHs) break out a few of the ESP32 module's pins on the edge of the board for users.

This board also includes status LEDs for power (PWR), charge status (CHG), user LED (13), and envelope (ENV). There are additional jumpers for power (PWR), USB shield (SHLD), reference (REF), raw EMG (RAW), envelope (ENV), and I²C pull-up resistors (I²C). Use it as a teaching tool to reduce the number of wires in your system or add some myoelectric flair to your Halloween costume!

Note: This item may take longer to process due to 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.

Important: MyoWare and the Wireless 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.

Get Started with the MyoWare 2.0 Wireless Shield Guide

Features

Input Voltage
- 5V via USB Type C Connector
Output Voltage (e.g. "VIN")
- 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
- Rated Capacity: 40mAh
- Nominal Voltage: 3.7V
- Max Charge Current: 1C (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
2.2kO 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 38.000mm (2.50in. x 1.50in.)

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)
- Datasheet
- MSDS
MyoWare Arduino Library
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.}

Product Comments

Start the conversation

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!