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YF-S201 Water Flow Sensor Features YF-S201 is a sensor used to measure the water flow. This water flow sensor mainly consists of a plastic valve body, rotor assembly, and a hall effect sensor. This module works based on the hall magnetic effect. So when the water flows through the rotor assembly, the rotor will rotate and the hall effect sensor will produce an electric pulse. By counting these generated pulses, the amount of water passing through the sensor can be calculated.The measuring range of wat...

AP3216 Sensor Features The AP3216C is an integrated ALS & PS module that includes a digital ambient light sensor [ALS], a proximity sensor [PS], and an IR LED in a single package. This module is well suited to applications under clear glass or darkened glass. The proximity function is targeted specifically towards near field application and detects external object with simple configurable zone controlled by registers.  Note You need a 220 to 470 ohm resistor to interface this module. ...

YwRobot Touch Sensor Module Features Touch Sensor is used to detect human finger touch. It is known as a touch switch as well. These sensors are easy to use and useful in many projects. Before touching the sensor, the output signal is always HIGH. When a human finger touches the sensor, it will generate a LOW level signal. This module also has an LED that lights up when the sensor is touched. Note This module works in trigger mode. That is when the sensor is touched, the digital output is LOW a...

Grove Touch Sensor Features This sensor uses TTP223-B IC. When your finger approaches this sensor, the capacitance of the metal surface will change. So you don’t need to touch sensor completely. Besides, you can put this sensor under a non-metallic surface and touch it. This sensor is waterproof, and it has a variety of applications.  Note There are two red and black wire that have been connected to this sensor. If you want to increase the fingerprint sensitivity, you can remove the black w...

SW-520D Tilt Sensor Module Featurs A SW-520D Tilt Sensor is an electronic device that detects the orientation of an object and gives its output High or Low accordingly. Basically, it has a metallic ball inside it which moves and makes the circuit. The sensor's sensitivity is at 10 degrees tilt. This module has two output pins for each path. When tilt angle is more than 10 degree, the output is low. Note The output is on trigger mode. You can download the datasheet of this module ...