ماژول تشخیص رطوبت HR202

Humidity Sensor Module HR202 Humidity Module Humidity Detection Switch HR202L
Use
• Humidity detection, humidity sensor, ambient humidity detection
Module features
• 1, using high quality HR202 humidity sensor;
• 2, the comparator output, the signal is clean, the waveform is good, the driving ability is strong, more than 15mA.
• 3, with potentiometer to adjust 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, with fixed bolt holes for easy installation
• 7, small board PCB size: 32mm * 14mm
• 8, using a wide voltage LM393 comparator
Product wiring instructions
• 1, VCC is connected to the positive pole of the power supply 3.3-5V
• 2, GND connected to the negative power supply
• 3, DO TTL switch signal output
• 4, AO small board analog signal output (voltage signal)
Module instructions
• 1. The humidity sensor module is sensitive to environmental humidity and is generally used to detect the humidity of the surrounding environment;
• 2, through the adjustment of the potentiometer, you can change the threshold of humidity detection (ie control humidity value), if you need to control the ambient humidity is 60, the module is adjusted to the green light in the corresponding ambient humidity, DO is output high power Flat, below this set humidity value, the output is high level, the green light is not bright;
• 3. The DO output terminal can be directly connected to the single-chip microcomputer, and the high-low level is detected by the single-chip microcomputer, thereby detecting the humidity change of the environment;
• 4. The DO output terminal can directly drive the relay module of the store, so that a humidity switch can be formed to control the related equipment to work in a suitable environment;
• 5, the small board analog output AO can be connected with the shop AD module, through AD conversion, you can get more accurate values of environmental humidity.