User Manual

2/13/2018 Lora Sensor Node-LSN50 - Wiki for Dragino Project
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Calculation method
Only for our LSN50 such as:
(TTN ) The value of the first two above is 00 00, which is 0
H = 0 * 3.0 * 1000 / (3.0 * 4095) (mm)
If (TTN ) data = 00 10 is 16
H = 16 * 3.0 * 1000 / (3.0 * 4095) (mm)
Case Study 2: With DS18B20 Temperature Sensor
Schematic
DS18B20 Temperature range is -55~125℃.
The delay time when the temperature changes is 750ms.Temperature measurement error is 0.5 ℃. The programmable
resolution is 9~12 bits.
Connection steps