# RF open/close sensor Open/close sensor on ATmega168/328 + nRF24. ## Features 1. Power consumption in sleep mode approximately 10 μA. Up to 2 years of operation on one CR2450 battery (estimated). 2. When triggered transmits the battery level charge and contact status (OPEN/CLOSE). 3. Can be used with normally closed and normally open contacts. 4. Automatic restart in case of a hang-up. ## Note A gateway is required. For details see [RF Gateway](https://github.com/aZholtikov/RF-Gateway). Any feedback via [e-mail](mailto:github@zh.com.ru) would be appreciated. Or... [Buy me a coffee](https://paypal.me/aZholtikov).