What is it?

It is a LoRa Node Low Power with RFM95 Module powered with Lithium 3.7v AA battery. - low power since Power led and power regulator of the Arduino Pro Mini has been removed. - NFC memory to configure the node and to save datas. - Mikrobus connector extension to extend its capabilities to infinite Finally, this LoRa Node has a Led and Power Level measure to control the voltage of the battery.

Why did you make it?

I would like to have a flexible node that I can configure and read some information with my smartphone and which I can put everywhere (no need complex material to configure on site).

I would like to used for various usage so I decided to use the MikroBUS connector for infinite variation of this node (https://www.mikroe.com/click).

I would like also low power which guarantee me at least 5 years of life of this node.

Easy to program, so the node is based on Arduino pro mini.

What makes it special?

I think it is special beacuse it have a very small format (50mm x 70mm) with MikroBUS extension (to support various extension boards) and a NFC memory to configure it and local data with my smartphone (So, I do not need special software and complex interfaces to configure it)

• Arduino Pro Mini (low power configuration: No Power Led, No Power regulator)
• Program it with your FTDI
• RFM95 (868 mhz/ 915 mhz) - RFM98 (433 mhz)
• 2 KBytes EEPROM NFC Memory dual port (read/write from arduino & read/write from your smartphone)
• control the embedded power voltage with the arduino
• HDU21 sensors for Temperature / Humidity
• Wire antenna or uFL connector
• MikroBUS extension connector (https://www.mikroe.com/click) - hundreds modules extensions