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MAX30100 is an integrated pulse oximeter and heart-rate monitor sensor solution. It’s an optical sensor that derives its readings from emitting two wavelengths of light from two LEDs.
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W1209 Mini thermostat Temperature controller is low-cost 12V Temperature controller with 7-segment display and 3 switch keypad for setting temperature .
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MAX30102 is an integrated pulse oximetry and heart-rate monitor module. It includes internal LEDs,photodetectors,optical elements,and low-noise electronics with ambient light rejection.
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TP4056 1A Li-Ion Battery Charging Board Micro USB with Current Protection is a tiny module, perfect for charging single cell 3.7V 1 Ah or higher lithium-ion cells such as 16550s.
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Ultrasonic Sonar Sensor HC-SR04 uses to determine the distance to an object.This sensor reads from 2cm to 400cm with an accuracy of 0.3cm,which is good for most hobbyist projects.
