EnviroDIY Mayfly Logger: v0.5b

The EnviroDIY™ Mayfly Data Logger is an Arduino-framework microcontroller board designed specifically for environmental Internet of Things (IoT) applications with the goal to facilitate professional-quality, do-it-yourself (DIY) environmental science and monitoring. The Mayfly Logger can be programmed using standard Arduino code and community libraries via the Arduino Integrated Development Environment (IDE) software or the more powerful PlatformIO IDE. The Mayfly Logger features the ATmega1284p processor, which has 4 times more flash memory for sketches, 8 times more RAM, and almost twice as many input pins as the ATmega328p chip found in the most common Arduino boards. The Mayfly Data Logger also has an integrated solar lipo battery charger, a precise real time clock (RTC), a microSD memory card socket, an XBee radio module socket, and other hardware features.

Our EnviroDIY_Mayfly_Logger Github repository provides hardware design files and example code sketches, the EnviroDIY community provides support via project posts and forums, and the Mayfly Logger board is available for purchase on on Amazon for user convenience.

New features of version 0.5b (released in May 2017):

• Added additional power options for the XBee radio socket, via jumper SJ13, to optionally power newer radios (i.e. 4G LTE-M & NBIoT) that require up to 2A of power at ~3.7V and do not have an external JST power socket. The SJ13 jumper on the back of the Mayfly Logger v0.5b allows the user to chose to power the XBee radio module from either the:
  • Mayfly's regulated 3.3v Vcc line (default), with a 500 mA maximum; or
  • LiPo battery unregulated direct power (option), if you cut the small trace that's connecting the "3v3" pad to the center pad of SJ13 (labeled "BEE_Vcc"), and put a solder bridge joining "BEE_Vcc" to the pad labeled "LIPO"