Wireless temperature and humidity sensor. 

Designed on the nRF52840 chip. 

The temperature and humidity sensor SHT20/SHT21/SI7020/SI7021 is used. 

Power sources used: CR2430/CR2450/CR2477. 

Power consumption when transmitting data is 8mA, in sleep mode is 5uA.

GitHub - https://github.com/smartboxchannel/WIRELESS-TEMPERATURE-HUMIDITY-SENSOR-V1-nRF52840-E73 (links, gerber, cod, bom, foto)


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For external interrupts to work, you must add 
```
__attribute__ ((weak))
``` in the Winterrups.c file before the void GPIOTE_IRQHandler (){} function.

File path - %LOCALAPPDATA%\Arduino15\packages\sandeepmistry\hardware\nRF5\0.6.0\cores\nRF5


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**...I hope this development will deserve your like**



