MyoWare 2.0 Muscle Sensor

Surface EMG sensor board that amplifies and rectifies electrical signals from muscle contractions into a single analogue output voltage. Snap-on electrode connections; output scales with muscle activation level.

VIN1
Input Voltage (VIN), primary pin 1 in the MyoWare v2 advanced guide; powers the sensor.
Type · powerVoltage · +2.27V minimum, typically +3.3V to +5V, +5.47V maximum
GND2
Ground (GND), primary pin 2 in the MyoWare v2 advanced guide.
Type · groundVoltage · 0V reference
ENV3
Envelope (ENV) output, primary pin 3; Adafruit states the sensor outputs a 0-VIN signal representing muscle flex and the guide labels this as EMG envelope output.
Type · signalVoltage · Output signal range 0-VIN volts, where VIN is the power-source voltage
RECT4
Rectified (RECT) output, optional pin 4 in the MyoWare v2 advanced guide.
Type · signal
RAW5
Raw (RAW) output, optional pin 5 in the MyoWare v2 advanced guide.
Type · signal
MID6
Mid-muscle (MID) electrode, optional pin 6 and snap socket G in the MyoWare v2 advanced guide.
Type · electrode
END7
End-muscle (END) electrode, optional pin 7 and snap socket H in the MyoWare v2 advanced guide.
Type · electrode
REF8
Reference (REF) electrode, optional pin 8; the guide also identifies reference electrode port E and snap socket F.
Type · electrode

Pin	Position	Type	Function	Voltage
VIN	1	power	Input Voltage (VIN), primary pin 1 in the MyoWare v2 advanced guide; powers the sensor.	+2.27V minimum, typically +3.3V to +5V, +5.47V maximum
GND	2	ground	Ground (GND), primary pin 2 in the MyoWare v2 advanced guide.	0V reference
ENV	3	signal	Envelope (ENV) output, primary pin 3; Adafruit states the sensor outputs a 0-VIN signal representing muscle flex and the guide labels this as EMG envelope output.	Output signal range 0-VIN volts, where VIN is the power-source voltage
RECT	4	signal	Rectified (RECT) output, optional pin 4 in the MyoWare v2 advanced guide.
RAW	5	signal	Raw (RAW) output, optional pin 5 in the MyoWare v2 advanced guide.
MID	6	electrode	Mid-muscle (MID) electrode, optional pin 6 and snap socket G in the MyoWare v2 advanced guide.
END	7	electrode	End-muscle (END) electrode, optional pin 7 and snap socket H in the MyoWare v2 advanced guide.
REF	8	electrode	Reference (REF) electrode, optional pin 8; the guide also identifies reference electrode port E and snap socket F.

Start wiring

UART · I2C · Analog · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: VIN, GND, ENV, RECT, RAW. Schematik maps them to your board in the app.

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