HR202 Digital Temperature Humidity Sensor

This module, based on the HR202 resistive humidity sensor, provides high linearity, a broad measuring range, and a low power consumption. The module has a power output indication LED as well as a digital output indicator. This module is ideal for specialised humidity sensing applications and is commonly used in meteorology, storage facility humidity management, the textile industry, and other applications that need ambient humidity monitoring. The output is available in both analogue and digital formats. This analogue was created by employing a comparator based on the LM393 integrated circuit. As a result, this high-quality HR202 humidity sensor offers an output signal that is clean, has a decent waveform, and can drive more than 15mA.

This humidity sensor module is sensitive to humidity levels in the surroundings. By altering the potentiometer, it is possible to measure ambient humidity. To detect humidity, modify the threshold (i.e. humidity control), such as the requirement to manage the ambient humidity of 60%. The matching module is then transferred to the green light and humidity environment, with DO high power output when flat, humidity values below this setting, high output, and the green light not shining.

DO output is frequently directly linked to the microcontroller through the microcontroller’s I/O pins to detect high and low. As a result, the humidity variations in the surroundings may be detected. The relay module’s DO output can be used to power the shop directly. This might take the shape of a humidity switch or control-related equipment to figure inside the appropriate atmosphere. Small plate AO analogue output modules are frequently coupled to AD through the AD converter. As a result, the numerical ambient humidity is more precise. The module has 3mm screw holes for convenient installation.