Using high-quality HR202 humidity sensor;
The comparator output signal waveform, clean, good, strong drive ability, more than 15mA.
With a potentiometer to adjust temperature detection threshold
Working voltage 3.3V-5V
Output: digital switch output (0 and 1)
A fixed bolt holes, easy to install
Small PCB size: 3.2cm x 1.4cm
The use of wide voltage comparator LM393
Technical specifications
- Power supply: 3.3V - 5V
- Current consumed very little
- Output digital
- Comparator LM393
- Threshold adjustable comparator threshold
- Maximum output current comparator: 15mA
- Measured humidity: 20 - 95% RH
- Center Resistance Value: 31kOhm
- Accuracy: 5% RH
- Hysteresis: 1% RH
- Recommended operating temperature: 0 - 60 degrees
- Response time: <10s
Dimensions: 32 x 14 mm.
This product is a humidity sensor module HR202 very useful to measure humidity in a room with a very good accuracy, namely 5% RH. The sensor has a very low response time of up to 10 seconds, which makes it useful to collect real-time data.
The module contains two LEDs, one to indicate the presence of the power supply, and the other to indicate the logic output value.
With this product you can design innovative electronics projects using Arduino development pads. For example, with the help of other sensors you can build a smart greenhouse.