New Mayfly Data Logger and Accessories

We are excited to announce the release of the newest version of the EnviroDIY Mayfly Data Logger and several new accessories:

The new logger board is called Mayfly version 1.0, because it’s the first major revision to the design since the beta version 0.5 that was first released in 2016. There are also several changes to the board that make it not backwards-compatible with older hardware. The exciting thing is that several new features have been added, and the many of the existing features were improved. Some of the highlights are:

• USB-C port, faster battery charging, upgraded solar charger
• Separate voltage regulators for bee socket and switched power output (1-amp each)
• New 12-volt switched power output (or changeable to 9v)
• LEDs to show board power and USB power status
• LEDs to show bee power and network status (for supported modules)
• LEDs to show USB upload/download status during programming
• Onboard sensors: analog light sensor and digital humidity/temperature sensor
• Two Qwiic ports
• Built-in auxiliary 8MB flash memory

More details about the new Mayfly v1.0 board can be found on the Mayfly Hardware page.

We also have a new custom EnviroDIY LTE Bee module, which utilizes the SIM7080 chip for LTE cellular with any carrier, and also has GNSS/GPS for location tracking. We’ve been testing them for several months and have had great success with them. They use much less power than any other cellular board we’ve tried, plus they plug directly in to the Mayfly board (any version) without the need for an adapter like we previously used with the Digi Xbee LTE boards. We’ll release more information about the new LTE board next week, along with sample sketches.

There’s also a new OLED display half-shield that you can use for displaying things like sensor readings or battery status, or use the 3 small push-buttons to interact with your Mayfly board. The display can even be put into sleep mode when the logger is asleep, so it will use no additional power. More information and sample sketches will be available soon. (note: this board only works with the new Mayfly v1.0 board and not with previous Mayfly versions)

We also have a new sensor interface board: the Modbus RS-485 Adapter half-shield. It can be used with up to 4 sensors that need 12-volt power and utilize RS-485 protocol for communications. It has been successfully tested with various sensors including ones with motorized wipers. More information and sample sketches will be published very soon. (note: this board only works with the new Mayfly v1.0 board and not with previous Mayfly versions)

And there’s a new version of our 6-pin screw terminal board, now with easier-to-use larger size screws. We also changed the pin layout and added some extra features like holes for mounting resistors (for creating an analog voltage resistor-divider), and solder jumpers on the bottom for selecting those resistors, or for combining the two separate signal wires into one single pin on the Grove jack. Instructions on that will be posted next week. So because this board can do 3 different types of operation, we’re calling it the Multipurpose 6-pin Screw Terminal Grove Adapter. It is compatible with any Mayfly version.

All of these new products are in-stock and are being prepped for sale in our EnviroDIY Shop and on Amazon, and this page will be updated when they are available at each location, as well as an update post on the forum. There’s so much to say about each of these products and the development that went into each one that I could write a blog post about each one in the coming weeks, along with all of the regular documentation on this site and on GitHub.