Wet Electrode sEMG Sensor Module

From the shop's description

Wet Electrode sEMG Sensor Module The Wet Electrode sEMG Sensor Module is a high-sensitivity surface electromyography device designed for gel-assisted wet adhesive electrodes, providing robust acquisition and amplification of microvolt-level muscle signals for research, prototyping, and wearable projects. The module delivers a conditioned analog waveform referenced to a 1.65V mid-rail (0–3.3V range) and a digital detect output for wear status, operates from a 5V supply with low current draw, and uses an XH2.54-4P connector for direct integration with Arduino and similar microcontroller platforms. Features High total amplification (~13000×) for reliable detection of µV-level sEMG signals. Wet adhesive electrode support for improved skin contact and signal stability. Differential input stage and analog filtering to suppress common-mode and mains interference. Analog output (0–3.3V) suitable for direct ADC sampling by microcontrollers. Digital detect output for wear/connection status and signal presence detection. Low operating current (<10mA) optimized for battery-powered and wearable systems. XH2.54-4P module interface and example Arduino library for rapid prototyping. Notes: Keep the electrode pads aligned with the muscle. When the skin is dry, it is recommended to wipe the electrodes and skin with conductive gel or wipes. The supply voltage is 5V, the supply current is not less than 20mA, and the ripple and other noise should be small. This product is not a professional medical device and cannot be used as an auxiliary accessory for diagnosis and treatment. PINOUT Specifications Parameter Value Supply Voltage 5VDC Operating Current <10mA Output Analog 0-3.3V Output Digital 0/3.3V Total Gain 13000× Typical Sampling Rate 500Hz (example library configuration) Module Interface XH2.54-4P Electrode Type Wet adhesive (gel) electrodes Dimensions 45mm x 45mm x 5mm (approx.) Applications Wearable heart, gesture, and muscle activity monitoring for prototypes and demos. Prosthetic and assistive device control where reliable skin contact is required. Rehabilitation and biofeedback systems for tracking muscle activation and fatigue. Educational and research platforms for signal processing and biosensing experiments. Package Contents 1x Wet Electrode sEMG Sensor Module. 1x 4-pin Dupont cable (XH2.54-4P to 4-pin Dupont). 1x Pack of wet adhesive electrode pads (3pcs). Arduino Tutorial Software Requirements: Arduino IDE >=2.3 Library files Sample Code: /* Serial port output: Baud rate 115200 Sampling rate：500Hz Serial port output content(ASCII code)： Raw data, filtered EMG signal, envelope signal, wear detection signal */ #include "CheezsEMG.h" #define SAMPLE_RATE 500 // Sampling rate #define BAUD_RATE 115200 // Serial port baud rate #define INPUT_PIN A0 // Signal input (white) #define DETECT_PIN 2 // Detect input (yellow) // Using the default configuration CheezsEMG sEMG(INPUT_PIN, DETECT_PIN, SAMPLE_RATE); void setup() { Serial.begin(BAUD_RATE); sEMG.begin(); } void loop() { if(sEMG.checkSampleInterval()) { sEMG.processSignal(); Serial.println( String(sEMG.getRawSignal()) + "," + // Raw data String(sEMG.getFilteredSignal()) + "," + // Filtering data String(sEMG.getEnvelopeSignal()) + "," + // Envelope data String(sEMG.getDetectSignal()) // Wearing situation ); } } You can view the experimental results through the “Serial Port Plotter” on the Arduino IDE