SENA ProBee-ZE20S User Manual

Page 62

ProBee-ZE20S User Guide Rev.1.10

6.6.6.3 Temperature / Illumination Data at Coordinator

The AT commands for Sampling Temperature / Illumination at Coordinator:

++0001950000000212|11100000000**0000|****,****,217F,0CD8,****,****

++0001950000000212|11100000000**0000|****,****,217E,0A2D,****,****

++0001950000000212|11100000000**0000|****,****,217F,0D19,****,****

# Data changes after covering sensors with fingers

++0001950000000212|11100000000**0000|****,****,2240,007A,****,****

++0001950000000212|11100000000**0000|****,****,22E8,0078,****,****

++0001950000000212|11100000000**0000|****,****,2301,00A6,****,****



Refer to 6.6.7 Data Conversion about how to convert to analog data to temperature and

illumination

6.6.7

Data Conversion

6.6.7.1 Analog Data Format

Analog data from temperature sensor and illumination sensor are a combination of 16-bit hexadecimal

integer between 0~2EE0(0~1200.0mV) which unit value corresponds to 0.1 mv.

6.6.7.2 Conversion of Analog Data

 Conversion of Analog Data to Actual Voltage

If the Value is between 0 ~ 7FFF, Voltage (mV) = Value * 0.1

If the Value is between 8000 ~ FFFF, Voltage (mV) = (Value – 65536) * 0.1

 Conversion of Actual Voltage to Temperature

Temperature(℃) ={ Volt(mV) -600(mV)} * 0.1(℃/mV)

 Conversion of Actual Voltage to Illumination

Illumination(Lux) = Volt(mV) * 0.25(Lux/mV)

6.6.7.3 Examples