Grove- Temperature and Humidity Sensor

Temperature
±1
°C
Long-term Stability
±1%
RH/year
Signal Collecting Period
2
S
Usage
When MCU sends a trigger signal, sensor will change from low power consumption mode to active
mode. After the trigger signal sensor will send a response signal back to MCU, then 40 bit collected data
is sent out and a new signal collecting is trigged.(Note that the 40 bit collected data which is sent from
sensor to MCU is already collected before the trigger signal comes.) One trigger signal receives one time
40 bit response data from sensor. Single-bus data is used for communication between MCU and sensor.
The communication process is shown as below:
It costs 5mS for single time communication.The high-order bit of data sends out first. Signal Data is 40
bit, comprised of 16 bit humidity data, 16 bit temperature data and 8 bit checksum.The data format is:
8bits integer part of humidity+8bits decimal part of humidity
+8bits integer part of temperature+8bits decimal part of temperature
+8bits checksum.