Sonoff Si7021 temperature/humidity sensor for Sonoff board
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Sonoff TH Sensor Si7021 (Itead IM170714003) Temperature and Humidity Sensor
Sonoff Si7021 Temperature and Humidity Sensor is a digital temperature and humidity sensor with a calibrated digital signal output. It adopts dedicated digital module acquisition technology and temperature&humidity sensing technology to ensure that the sensor has a very high reliability and excellent long-term stability. The sensor includes an integrated single-chip temperature and humidity sensor chip, which connects to a high-performance 8-bit MCU. The Si7021 sensor has advantages such as excellent quality, ultra-fast response, anti-interference ability and cost-effective. The sensor has 2.5mm 4-pole stereo audio male plug connector, which works perfectly with Sonoff TH10/TH16.
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Relative humidity and temperature measurement
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All calibrated, digital output
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Good long-term stability
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No additional parts required
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Ultra-low energy consumption
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The sensor is fully interchangeable
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Si7021(wiki)
Interface Description
It is recommended that the DATA pin use a 10K pull-up resistor and a 100nF capacitor can be added between the power supply pins (VCC, GND) for decoupling.
Audio Connector
Pins
|
Pin |
Name |
Description |
|---|---|---|
|
1 |
VCC |
Power supply 2.2~3.6VDC |
|
2 |
GND |
GND |
|
3 |
NC |
NC |
|
4 |
DATA |
Single bus, data port |
- 90*41*27mm (L*W*H)
- 3% RH (10...90RH)
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