Product Description The GSR Galvanic Skin Response Module is a bio-sensing kit designed to measure skin resistance and conductivity caused by sweat gland activity. These changes are linked to physiological arousal, stress, and emotional states, making this module popular in biomedical research, lie detection systems, human-computer interaction, and IoT health projects. The module works by applying a tiny, safe current to the skin and measuring the resistance variation. It provides an analog output that can be easily read by Arduino, STM32, ESP32, and Raspberry Pi (via ADC). The included finger straps/electrodes make it simple to attach to the skin for real-time monitoring. Available now at PowerMark Solution, this GSR kit is an excellent tool for psychological experiments, stress detection, and wearable biofeedback systems. Features Measures skin resistance and conductivity Detects physiological arousal and stress response Provides analog output for microcontrollers Safe low-current sensing circuit Adjustable sensitivity (potentiometer) Includes finger straps/electrodes for easy attachment Works with Arduino, ESP32, STM32, Raspberry Pi (ADC required) Compact and reliable design for research and education Applications Stress and emotional monitoring Lie detector (polygraph) experiments Human-computer interaction (HCI) IoT-based health monitoring systems Biofeedback and wearable devices Psychological research and STEM education Technical Specifications Specification Details Sensor Type Galvanic Skin Response (GSR) sensor Output Type Analog voltage signal Operating Voltage 3.3V – 5V Adjustable Sensitivity Onboard potentiometer Interface 3-pin (VCC, GND, OUT) Electrodes Finger straps included Module Size ~32mm × 14mm Package Includes 1 × GSR Galvanic Skin Response Module 2 × Finger strap electrodes Documentation Works with Arduino IDE: Connect OUT pin to an analog input pin. Read varying resistance values as skin conductivity changes. Also works with ESP32, STM32, and Raspberry Pi (requires ADC for analog input). Example codes are available for stress-level visualization on IoT dashboards or serial monitors. FAQs Q1: What does the GSR sensor measure?A: It measures skin resistance and conductivity linked to stress/arousal. Q2: Does it provide analog or digital output?A: Analog output only. Q3: Is it safe for human use?A: Yes, it uses a very low current safe for skin contact. Q4: Is it Arduino-compatible?A: Yes, easily read via analog pins. Q5: Can it work with Raspberry Pi?A: Yes, but requires an external ADC. Q6: Does it include electrodes?A: Yes, comes with finger straps for skin contact. Q7: What is the operating voltage?A: 3.3V–5V. Q8: Can it detect emotions?A: It detects physiological arousal, often linked to stress or excitement. Q9: Is calibration needed?A: Basic calibration may be needed depending on skin type and conditions. Q10: Is it beginner-friendly?A: Yes, widely used in educational projects and experiments.
