Humidity sensor module HR202

Specificatii:

Module features: 1, using high-quality hr202 humidity sensor ; 2, the comparator output signal is clean, good waveform, driving ability, more than 15ma; 3, adjust the temperature distribution position detection threshold; 4, the working voltage 3. 3v-5v; 5, the output form: Do digital switching outputs ( 0 and 1 ) and ao analog voltage output; 6, a fixed bolt holes for easy installation; 7, a small pcb board size: 3. 2cm x 1. 4cm; 8, using a wide voltage lm393 comparator. Product wiring instructions: 1, vcc positive power supply 3. 3-5v 2, gnd power supply is negative 3, do ttl switching signal output 4, ao small plates analog output ( voltage signal ) module for use 1, the humidity sensor module is sensitive to environmental humidity, generally used to detect ambient humidity ; 2, by adjusting the potentiometer, for detecting the humidity can change the threshold ( I. E. The humidity control ), such as the need to control the ambient humidity of 60 percent, then the corresponding module is transferred to the green light and humidity environment, do high power output when flat, humidity values below this setting, high output, the green light does not shine ; 3, do output can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting the humidity changes in the environment ; 4, do output of the relay module can directly drive the shop, which can form a humidity switch, control-related equipment to work in the right environment ; 5, small plates ao analog output modules can be connected our ad through the ad converter, you can get a more accurate numerical ambient humidity.