Data Sheet

13
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HTE501
6 Sensor Communication
6.1 Command Overview
COMMAND DESCRIPTION
0x2C1B Measurement, single shot, I
2
C clock stretching enabled; Use current resolution
0x241D Measurement, single shot, I
2
C clock stretching disabled; Use current resolution
0x201E Measurement, periodic; Use current resolution and interval
0xE000 Fetch periodic measurement data
0xE016 Fetch dew-point value
0x30A2 Soft Reset
0x3093 Break (end periodic measurement)
0x306D Heater ON
0x3066 Heater OFF
0x3041 Clear Status Register 1
0xF32D Readout of Status Register 1
0xF352 Readout of Status Register 2
0x7029 Read Identification
0x72A7 Read / Write Sensor Settings (RAM)
0x06 I
2
C Reset at general call address 0x0
Table 11: HTE501 commands
6.2 Measured Data Format
Temperature [°C] = (Temperature MSB x 256 + Temperature LSB) /100
Humidity [%RH] = (Humidity MSB x 256 + Humidity LSB) /100
Dew point temp. [°C] = (Dew point MSB x 256 + Dew point LSB) /100
6.3 Measurement Modes
There are two different operation modes to communicate with the sensor:
1. Single Shot Measurement
G:\Produkte\HTEx01\501\Archive\PWRup_HIpin_Modi
Singelshotmode
Periodicmode
IDLEMODE PERIODICMODE IDLEMODE
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ShotMeasurement
Measurement
COMMANDSingle
ShotMeasurement
Measurement
SingleMeasurement
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PeriodicMode
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COMMAND
FetchMeasurement
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Timedependonmeasurement
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optionalCOMMAND
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optionalCOMMAND
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19.10.2021
Figure 8: Single shot measurement