# ATMEGA328PU_lowPower_weather_station

## What is it ?

An ATMEGA328PU and NRF24L01+ based weather station operating on a single 18650 li-ion battery (or equivalent) and a solar panel :

![](http://82.64.196.164/images/git/weather_station_under.jpg)

## What are the functionalities ?

The station is equipped with the following sensors and has these functionalities :

* Temperature (BMP280 and HTU21)
* Humidity (HTU21)
* Pressure (BMP280)
* Sunlight (LDR)
* Battery level indication (ATMEGA's ADC)

## The hardware :

**The main board**

Top view :

![](http://82.64.196.164/images/git/weather_station_pcb_back.jpg)

Back view :

![](http://82.64.196.164/images/git/weather_station_pcb_top.jpg)