LM393 Voltage Comparator Module Adjustable Precision Signal Waveform Shaping High Level Dual Output LED Indication Module Board
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LM393 general-purpose single-supply comparator module, the module realizes voltage precision linear adjustment, realizes high and low level and load drive dual output, and is convenient for front-end acquisition and single-chip microcomputer switch acquisition.
Module input voltage: 4.5-28V
Module size: length 39.5mm width 17mm
Comparator chip: LM393 comparator chip
The module sensor can connect many sensors
(like: Resistive sensors: NTC thermistor temperature sensors, photoresistor photosensitive sensors, vibration sensors, etc.!)
1×Voltage Comparator Module
Use the reference voltage adjustment potentiometer to adjust the reference voltage, and compare the voltage generated by the sensor and the voltage dividing resistor with the reference voltage to realize the output of the comparison result of high and low levels.
At the same time, after redesign, on the basis of the original high and low level output, a high-current drive output port is added, which can directly drive low-power loads such as relays, optocouplers, LEDs, and buzzers.
(Note: The valid range of threshold voltage is 0- (power supply voltage minus 1V). For example, if the power supply is 5V, the effective value of the reference threshold voltage is 0-4V, which can realize comparative output. If in the case of 5V power supply, the threshold voltage is greater than 4V, then the output will always remain low, equal to no output.)
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