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uFL connection for external passive GPS & external GSM antenna
classroom demos
Terminals Screw block
Gain: approx -2 dBi
This is Φ3mm 20mm Hollo Hexagon Copper Cylinder
DFRobot Gravity Heart Rate Monitor Sensor - Analog PPG dfr0009 uFL connection for external passiveAdd Reliable Heart Rate Monitor Sensor Gravity Sensing to Your Next Build The DFRobot Gravity Heart Rate Monitor Sensor measures the electrical activity of the heart, allowing you to record and visualize ECG (electrocardiogram) signals. Built with the AD8232 chip, it delivers a clean, amplified signal from PR and QT intervals, reducing noise for more accurate readings. Using the Arduino IDE's Serial Plotter, you can view real time ECG waveforms
