DPP904R000

MEAS PI WEATHER SHIELD Digital Humidity Sensor Digital Pressure Sensor Digital Temperature Sensor Digital Thermopile Sensor General Description The MEAS Pi weather shield provides the necessary hardware to interface the HTU21D digital relative humidity sensor MS5637 digital barometric pressure sensor temperature system sensor (TSYS)01 digital temperature sensor TSD305-1C55 digital thermopile sensor to any system that utilizes Raspberry Pi compatible expansion ports 2 configurable for I C communication. The HTU21D sensor is a self-contained humidity and temperature sensor that is fully calibrated during manufacturing. The sensor can operate from 1.5V to 3.6V, has selectable resolution, low battery detection, and checksum capability. The HTU21D has a low power stand-by mode for power-sensitive applications. The MS5637 sensor is a self-contained pressure and temperature sensor that is fully calibrated during manufacturing. The sensor can operate from 1.5V to 3.6V. The sensor module includes a high-linearity pressure sensor and an ultra-low power 24-bits ADC with internal factory-calibrated coefficients. The temperature system sensor -TSYS-01 series is a self-contained temperature sensor that is fully calibrated during manufacturing. The sensor can operate from 2.2V to 3.6V. The TSYS01 has a low power stand-by mode for power-sensitive applications. The TSD305-1C55 is a contactless temperature measurement system located in a TO5 package. The TSD includes an infrared sensor (thermopile) and a sensor signal conditioner. SENSOR SOLUTIONS /// MEAS PI WEATHER SHIELD 11/2016 Page 1 MEAS PI WEATHER SHIELD Digital Weather-Shield Sensor Specifications HTU21D Measures relative humidity from 0% to 100% Measures temperature from -40C to 125C 2 I C communication Fully calibrated Fast response time Selectable resolution 8/12-bits resolution for humidity 11/14-bits resolution for temperature) Very low power consumption MS5637 Measures pressure from 300 mbar to 1200 mbar Measures temperature from -40C to 125C 2 I C communication Fully calibrated Fast response time Very low power consumption TSYS01 Measures temperature from -40C to 125C 2 I C communication Fully calibrated Fast response time Very low power consumption 24/16-bits resolution for temperature TSD305-1C55 Measures temperature from 0C to 100C 2 I C communication Contactless temperature measurement Fully calibrated Up to 1C accuracy Operating Temperature Range: -10C +85C Low current consumption Performance 0% to 100% relative humidity range (HTU21D sensor) Operating pressure range: 300 to 1200 mbar (MS5637 sensor) Measures temperature from -40C to 125C, accuracy from 0.1C to 0.5C (TSYS0101 sensor) Contactless temperature measurement from 0C to 100C (TSD305-1C55) SENSOR SOLUTIONS /// MEAS PI WEATHER SHIELD 11/2016 Page 2