WIRELESS-TEMPERATURE-HUMIDITY-SENSOR-V1-nRF52840-E73.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.