LM393 Comparator Module Mikrokontroller Fejlesztő Tábla tanulótábla
LM393 Comparator Module Microcontroller Development Board Learning Board
Product Description:
1. Features
1). The sensitivity of the sensor is adjustable.
2). Angle processing humanized design.
3) Standard XH2.54 interface.
2. Scope of application
It can meet various resistance sensors (such as photoresistors, thermistors, etc.).
3. Specification
Operating voltage: 3.3 V to 5 V.
Output form: analog output.
b: Digital output, output threshold.
Product size: 29.5 mm * 13.5 mm.
Mounting hole size: Φ3.
4. Instructions
1. The probe input interface has two rows of needles, which can meet various resistance sensors (such as photoresistors, thermistors, etc.), internal pull-up 10K voltage divider voltage sensor input comparator, adjustable resistance voltage comparator internal supervision negative The input voltage is compared, and the comparison result is output (when the positive terminal voltage is higher than the negative terminal, the output is 1, otherwise it is 0).
2. The output is connected to any IO port of the SCM (according to the process definition), and the low-level change is detected by the single-chip microcomputer, thereby detecting the change of the environmental brightness.
3. The analog output AO of the small board can be connected to the input voltage acquisition.
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