An ATMEGA328PU and NRF24L01+ based weather station operating on a single 18650 li-ion battery (or equivalent) and a solar panel.
On this page is displayed the data collected by this very unit !
Check the LICENSE.md file at the root of this project for more information.
The station is equipped with the following sensors and functionalities :
/ |_src This folder contains all the C/C++ file sources. | \_app This folder contains the main app and it's dependencies. | |_libs This folder contains all the required 3rd party libraries that should be put in "Arduino\libraries" folder in order for the app to compile. | |_test This folder contains a test program which was used to test the dependencies. | |_schematic This folder contains all the files associated with the schematic | \_KiCad This folder contains the KiCad files associated with the project. | |_ATMEGA328PU_lowPower_weather_station.pdf Which is the most recent schematic exported as a pdf for quick viewing. | |_documentation This folder may one day contain the associated documentation if needed. | |_.gitignore |_LICENSE.md |_README.md The content of this page
You may change some settings present in the definition.h file.
Set SLEEP_4_SEC_INTERVAL which corresponds to the time interval between each data transmission in 4 seconds increments. 1 minute by default corresponds to a value of 15.
Set SERIAL_DEBUG_ENABLED to 1 to get debug output on the serial console.
Set SERIAL_BAUD_RATE to the desired baudrate for debugging.
Set ADC_QUANTUM to adjust the quantum if your VREF is not the same as mine.
To do so, measure which voltage does the VCC pin of your Arduino board output and divide it by 1024 (10 bit ADC resolution).
Set VOLTAGE_DIV_COEFF to something different if you changed the voltage divider resistor values.
Set RADIO_CHANNEL to the NRF's RF channel (between 0 and 124). Do not forget to set the receiver station up on the same channel
Set RADIO_NODE_ADDRESS to change it's 5 byte address if you feel like it. Do not forget to set the receiver station up on the same address
Set RADIO_PA_LEVEL to adjust the transmit power level if needed (higher the power, higher the current consumption)
Set ENABLE_LNA to true or false to enable or disable the Low Noise Amplifier on the NRF modules if it has one.
Here is a list of the parts used to build the station with a link to where you can buy it :
If you have any questions, do not hesitate to contact me at : bugreport[at]laposte[dot]net