Product description
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 both 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.
By default, the Wireless Shield includes firmware to act as a peripheral device. You can use for examples an IoT RedBoard - ESP32 to receive the analog reading from the peripheral MyoWare 2.0 Wireless Shield. Once connected, the muscle sensor readings will be transmitted wirelessly to the central device. When flexing your muscle you can see the values increase. With the Arduino Serial Plotter you will see a graphical view of the values.
More information is available on the website of Sparkfun.