product description 1. Features 1). The sensitivity of the sensor is adjustable. 2). Fillet treatment of human design. 3). Standard XH2.54 interface. 2 the scope of application To meet a variety of resistance sensors (such as photoresistor, thermistor, etc.). 3 specifications Operating voltage: 3.3 V to 5 V. The output form is : Analog output. b: digital output, output threshold. Product Size: 29.5 mm * 13.5 mm. Mounting hole size: Φ3. How to use ?? 1. Probe input interface for two rows of needles, you can touch a variety of resistive sensors (such as photoresistors, thermal resistance, etc.), the internal pull-up 10k, voltage sensor input comparator voltage divider end and the internal adjustable resistor voltage comparison The negative input voltage of the device is compared and the result of the comparison is taken from the OUT output (the positive voltage is higher than the negative voltage when the output is 1, otherwise 0). ?? 2. With the output of any microcontroller IO port (depending on the process definition) are linked together through the microcontroller to detect low-level changes in order to detect changes in environmental brightness. ?? 3. Small analog output AO can be connected to the AD input voltage acquisition.
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