Shannon Hicks

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]

The yellow LED on the Mayfly board indicates when the battery is actively being charged. If the battery is fully charged, then the yellow LED will be off. What does the data card file say the battery voltage was when you experienced the issue of the yellow LED not being lit? The Red and Green LEDs near the battery jack are programmed to blink…[Read more]

Is the small jumper on the Mayfly board next to the Aux Analog grove ports switched over to 5v from it’s default 3v position? Did you verify that all of the sensor wires are connected to the right ports on the 6-pin screw terminal board? Red wire to Vcc, White wire to D2, Blue wire to D1, and the other three wires (black, green, and clear) all…[Read more]

That is an interesting part, but I agree that the most dangerous thing about using it is the possibility of having the metal part of the holder (which is connected to the negative or ground side of the board power rail) contacting something inside the Mayfly case and shorting things out.

We’re planning to offer a 5-pack of just the vertical…[Read more]

I sent more protoshields to Amazon earlier this week, so they should be available as soon as Amazon processes the incoming shipment.

Remote programming a datalogger has never been a priority for the type of deployments we usually do, because our monitoring stations require frequent maintenance visits to clean the sensors or perform other tasks at the station. The most common reason for reprogramming a board would be if you’re adding or removing a sensor, or recalibrating one,…[Read more]

I don’t know of anyone successfully programming a Mayfly board remotely. We didn’t design the board with that capability in mind, but we’re investigating that option for future board versions.

Thanks for the photo. The screw terminal pic looks fine, on pic of the Mayfly, it’s hard to see the jumper pins for the D6-D7 grove jack, but can you verify that there is a jumper (shunt) on the pins as seen in this photo.

Can you post a picture of your sensor wiring showing how it’s connected to the terminal board and also a photo showing how it’s connected to the Mayfly? Did you make any changes at all to the address changing sketch? I’ve personally used almost 500 sensors (CTD, soil moisture, conductivity, etc) from Meter group and have never had a bad one right…[Read more]

Check your wiring, the Meter group CTD sensor has a red wire for the data (signal) wire, white is positive voltage, and black is ground. It’s kind of backwards from most common DC sensor wires where red is usually the voltage supply wire. I’ve confirmed with the folks at Meter that the sensor works just fine at 3.3v.

Not sure why it’s not working based on what’s visible in the sketch you posted. But I’m guessing there’s something happening in the TM1637Display library that is looking for return data or confirmation from the display in order for the sketch to continue, so without the display plugged into your Stalker, the sketch hangs and stops, rather than…[Read more]