1 db LM393 4 tűs hőérzékelő modul hőmérséklet érzékelő modul termisztor hőérzékelő 4 vezetékes rendszer
1PCS LM393 4-pin thermal sensor module temperature sensor module thermistor thermal sensor 4-wire system
USE:
Temperature detection, temperature control sensor, ambient temperature detection
Module features:
1. Using an NTC thermistor sensor, good sensitivity
2. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA.
3. The power distribution positioner adjusts the temperature detection threshold
4. Working voltage 3.3V-5V
5. Output form: DO digital switch output (0 and 1) and AO analog voltage output
6. Equipped with fixing bolt holes for easy installation
7. Small board PCB size: 3.2cm x 1.4cm
8. Use a wide voltage LM393 comparator
Module instructions
1. The thermistor module is very sensitive to ambient temperature and is generally used to detect the temperature of the surrounding environment;
2. By adjusting the potentiometer, you can change the temperature detection threshold (that is, the control temperature value). If you need to control the ambient temperature to 50 degrees, the module will adjust its green light to the corresponding ambient temperature, and the DO will output low power. When the temperature is lower than the set temperature value, the output is high and the green light is off;
3. The DO output terminal can be directly connected with the single-chip microcomputer, and the high and low level can be detected by the single-chip microcomputer, thereby detecting the temperature change of the environment;
4. The DO output terminal can directly drive the relay module of our store, which can form a temperature control switch to control the working temperature of related equipment, and can also be connected to a fan for heat dissipation, etc.;
5. The temperature detection range of this module is 20-80 degrees Celsius;
6. This module can also be replaced with a temperature sensor with wires for the control of water temperature, water tank, etc.
7. The analog output AO of the small board can be connected to the AD module of our shop. Through AD conversion, a more accurate value of the ambient temperature can be obtained
Module interface description (4-wire system)
1 VCC external 3.3V-5V
2 GND External GND
3 DO small board switch digital output interface (0 and 1)
4 AO small board analog output interface
1005003501342765 - fullstar