G-Sense : SHT45 Industrial Humidity and Temperature Sensor Probe SHT45 is a digital sensor platform for measuring relative humidity and temperature at different accuracy classes. Its I2C interface provides several preconfigured I2C addresses while maintaining an ultra-low power budget (0.4 μW). The power-trimmed internal heater can be used at three heating levels thus enabling sensor operation in demanding environments.

After reaching the minimal supply voltage (1.08v – 3.6v) and allowing for the maximal power-up time of 1 ms the sensor is ready for I2C communication.

Interface definition

• VCC – RED
• GND – BLACK
• SCL – YELLOW
• SDA – BLUE

SHT35 connection with GLYPH Development Board

• VCC – 3.3V
• GND – GND
• SDA– GPIO4 (SDA)
• SCL – GPIO5 (SCL)

Features

• Fully calibrated, linearized, and temperature compensated digital output
• Supply voltage range, from 1.08 V to 2.6 V
• I2C Interface
• Two user selectable addresses
• Typical accuracy of +/- 0.5 %RH and +/- 0.1 °C
• Very fast start-up