We are excited to introduce our new custom Arduino-based datalogger board, the EnviroDIY Mayfly Logger. It has a combination of features and capabilities that make it one of the most powerful and flexible logger platforms available.
It is similar to some of the boards we’ve used in the past, like the Seeeduino Stalker, but we also added a lot of features and functionality to make it even easier to use. The most significant improvement is that the Mayfly uses a more powerful processor – the ATmega1284P, instead of the 328P that is found on the Stalker, Arduino Uno, and most other Arduino boards. This means that the Mayfly has 4 times more flash memory for sketches and 8 times more RAM, 2 serial UART ports, and almost twice as many I/O pins.
The Mayfly also has onboard LiPo battery charging circuitry and a DS3231 RealTimeClock. In addition to the usual 8-bit Analog-to-Digital converter input pins you usually find on Arduino boards, we’ve added an separate higher resolution 16-bit ADC for 4 single-ended measurements or 2 differential channels.
There’s a horizontal MicroSD memory card slot on the board for storing your logged data, and a second optional vertical card slot can be added that makes it much easier to access the memory card when the Mayfly is mounted inside an enclosure. And there’s a Bee socket for mounting any module with the standard Bee footprint, allowing you to add wireless capability like WiFi, Xbee radios, or cellular.
The Mayfly has 6 Grove connectors for easy connections to peripherals. We’ve also built a few different add-on shields that connect to the Mayfly via the two 20-pin headers. The shields can be customized to provide connectors for different types of sensors or other inputs, or for outputs to control equipment or show data on small displays.
A watertight enclosure with clear lid can hold the Mayfly, interface board, battery, telemetry module, and small solar panel for a compact, self-charging logger, or it can be put inside a larger case for more security and durability. The Mayfly is only 3.7″ x 2.5″ (94mm x 64mm), which is about the same size as a RaspberryPi board.
We will be sharing more technical details about the Mayfly very soon, as well as information about when and where you’ll be able to order your own. We’d also like to thank the very supportive people at SODAQ who assisted us in the design of the Mayfly after we had very good success with their SODAQ Mbili boards earlier this year.