Shannon Hicks

Right, that’s why I’m thinking you just need a screw terminal to Grove board, and since you only need 4 wires, you can use something like this:  https://solarbotics.com/product/29118/

All bare-board electronics such as the Digi LTE cellular board and the EnviroDIY Mayfly are sensitive to static electricity and theoretically they could be damaged if you aren’t careful.  That said, the Mayfly is pretty hardy and I haven’t experienced any problems after handling multiple thousands of boards over the last few years in all sorts of…[Read more]

We used to sell the 6-pin screw terminal boards on Amazon, but don’t anymore.  We do offer a 5-pack in our EnviroDIY ship page if you want to buy 5 all at once:  https://www.envirodiy.org/product/envirodiy-grove-6-pin-screw-terminal-adapter-pack-of-5/

Otherwise as Beth said, you might be able to use a regular 4-pin screw terminal board that is w…[Read more]

Yes, Digi-Key has over 4,500 of them in stock right now:  https://www.digikey.com/en/products/detail/digi/XB3-C-A2-UT-001/7932027

Mouser only has ~350 right now and is slightly more expensive than Digi-Key:  https://www.mouser.com/ProductDetail/DIGI/XB3-C-A2-UT-001

Note that Digi (makers of the cellular modem) and Digi-Key (an electronics d…[Read more]

Here’s an update for this topic:  we’ve implemented the online shop here on EnviroDIY to sell 5-packs of various products, including the vertical microSD card adapter board.  All prices include shipping (to US addresses only).  Restocking items on Amazon has been extremely slow lately, so if anyone wants to buy Mayfly boards, kits, or ac…[Read more]

After thinking about this old code yesterday, I was curious about what actually happens if a tip occurs during a long delay period, like the 2-second delay on line 123 and and 2.5-second delay on line 125 (which are delays to give the Xbee 900mhz radio module time to successfully wake up and then finish its routine before sleeping).   I p…[Read more]

Below is the code I wrote several years ago that is still running on all our local tipping buckets.  This was way before all the ModularSensors libraries and MMW portal, so things could be written differently now, but it can give you and idea on how the Mayfly handles the interrupt signal from the tipping bucket.

First you need to enable the…[Read more]

Meter Group sensors like the Teros 12 come with either bare wires or 3.5mm stereo headphone jack plugs.  Have you already purchased your sensors?  If not, you can choose that option when you order.  You can also request a custom cable length if you need longer cables than the default length, which I think is usually 3 meters on their soil se…[Read more]

The 10HS soil sensor has a simple analog voltage output that is easy to measure with an Arduino board by doing an analog voltage measurement.  The Teros 12 has a digital output in either TTL or SDI-12 format.  I’d recommend SDI-12, especially if you’re going to have more than one sensor connected to the same board, since then you can assign a d…[Read more]

Is there a benefit to using a Trinket for counting the tips instead of using the Mayfly?  I’ve built a bunch of tipping bucket recorders using only Mayfly boards by just connecting the bucket’s reed switch to the Mayfly pin D10 and using code to look for an interrupt to wake the Mayfly, increment the count, and go back to sleep.  It records and t…[Read more]

I just compiled and ran your code on my own Mayfly board (replacing the Loop function with the one I edited above), and commenting out anything relate to the Atlas sensors since I don’t have any here for testing, and the Mayfly board slept properly, woke up every minute and took a “sample”, wrote data to the card, and went back to sleep.

If you…[Read more]

Is the board sleeping all the time and not waking? Or is it awake all the time and not sleeping? Is data being saved to the card or printed to the serial terminal?

It looks like this code was based on one of our old sleeping Mayfly logger example sketches, but there’s some stuff in the main Loop that is out of order. I’m assuming you’ve got the Atlas sensors connected to the I2C Grove port on the Mayfly. If you want to be able to switch their power on and off, then you need to move the small jumper on the…[Read more]

That’s correct, the main reason the ADS1115 is on the Mayfly is to give you much better resolution on analog measurements (16-bits versus the ATmega1284’s 10-bit ADC). It can also handle a much faster sampling rate and can take differential measurements. The standard ATmega analog inputs are still available for you to use, they’re just only…[Read more]

Because the ADS1115 is a separate chip, you don’t have to declare the ADS1115 input pin numbers as A0, A1, etc. You just call them 0, 1, 2, or 3.

In your code, you can remove line 8 since you’re declaring an INT that you aren’t actually using anywhere. Or you could keep the line and just change ‘A3’ to ‘3’

Then in line 26, you can either…[Read more]

Without having been to that station myself, it’s hard for me to guess why that station is having more battery trouble than your other ones. I’m guessing maybe it’s more shaded, or possibly the solar panel isn’t pointed in an optimal direction? You could also try putting a voltmeter on the panel on a sunny day and make sure it’s putting out…[Read more]

We’re planning to implement a separate online storefront for bulk quantities for instances like this, which will make purchasing large quantities much easier than buying lots of our single-packaged units from Amazon. Not sure of the exact date we’ll start, but hopefully very soon. In the meantime, if you just need estimates on when a certain…[Read more]

They were in stock and available for a few weeks, but I guess they’re popular again. We’ve been offering the protoshield for several years, but demand for these tends to fluctuate more than any of the other things we offer, so it’s difficult to predict.

A tip for finding our items on Amazon: only in-stock items can be found using the Amazon…[Read more]

It sounds like the sensor isn’t getting power. Do you know which sensor wire you had plugged into the Vcc jack on the screw terminal board? Do you have a voltmeter (multimeter) that you could put on the Vcc line to measure the output voltage of the Mayfly’s 5v switch boost circuitry when the sensor is supposed to be powered for a sample? It’s…[Read more]

Pressing the rest button only makes the logger code restart, the same as if you turned the power switch off and then back on, so it shouldn’t cause the sensor to stop working. Did the sensor stop reporting normal values exactly when you restarted the board? Did you accidently bump the sensor connector inside your enclosure and cause a bad…[Read more]