Shannon Hicks

If there’s a CR1220 watch battery installed in the battery slot on the Mayfly (with sufficient voltage) then the RS3231 RTC will still be alive and continuing to think it’s whatever time it thinks it is. However if the board has been sitting in storage for awhile and not attached to a main Lipo battery, it’s likely that the CR1220 is dead and…[Read more]

I’m not familiar with the code regarding the complex loop since it’s not something I’ve ever used, and I’ve also not used one of those modbus wings, so I think Anthony or Neil will need to be the ones to help with this issue.

If your Mac isn’t seeing the Mayfly as a USB device in your computer OS list of current devices, then you need to install the FTDI drivers from the device website at https://ftdichip.com/drivers/vcp-drivers/

Mac and Windows 10 should automatically install those drivers whenever a Mayfly is connected to a computer for the first time, but sometimes…[Read more]

We’ve seen that very rarely, usually it happens when the connection between the Mayfly and the sensor is bad, and the fault is either mechanical damage to the sensor cable (rodents chewing, flood damage, etc) or corrosion on the contacts inside the Grove stereo jack due to moisture inside the logger enclosure, or bad connection of the Grove cable…[Read more]

The LTEbee adapter board you linked above was a special product we developed in 2019 for interfacing the Digi-brand LTE cellular boards with the Mayfly Logger.   The Digi board have been nearly impossible to buy since late 2020 because of production/shortage issues with the manufacturer and aren’t expected to be back in stock anywhere until l…[Read more]

Email me your sketch and I’ll load it to a v0. 5b board and see if I can recreate your issue.

Are you using the new sim7080 directly plugged in to the Mayfly, or are you still using the LTEbee adapter board from your old Digi hardware in between the sim7080 and the Mayfly?

We haven’t used that sensor at Stroud, but after looking at the spec sheet, I don’t see why it wouldn’t work with one of our newer Mayfly models that generates 12v.  You’ll need a Modbus interface if you want to use that protocol, so either building your own or using the one we’ll be releasing soon.  For SDI-12, it should work directly connected t…[Read more]

The Mayfly board is not a I2C slave device so it does not have an I2C address.  The easiest way to transfer data between Mayfly boards would be to use UART like serial or NewSoftSerial.

We’ll be making an announcement next week about the release of the RS485 board, along with updates to the latest Mayfly design which includes good news about the 12v boost option.  We’ll also be making some updates to the website to make it much easier for people to see the when and where all of our products are in stock, release dates,…[Read more]

Changing the interval in that line should work, unless you’ve got something else in your code that’s’ interfering with that.  What example sketch did you use for your code?

As for delayed transmission of multiple samples, we haven’t felt the need to do that on any of our stations so it’s not a feature we’ve implemented in our code, but I think…[Read more]

Unfortunately, there’s currently no way to trim out unwanted datapoints from MMW, but perhaps @aufdenkampe can comment about future changes to the site that might allow this.

The transmission rate is determined by whatever you put in the sketch of your logger.  I don’t know what sketch you’re starting with, but if you’re using one of our examples that we include with the ModularSensors library, then there’s a line about 50 lines down that says this: const uint8_t loggingInterval = 5;

So 5 is the number of minutes…[Read more]

Sounds like modifying your Grove cable to connect the resistor pair to your differential input is your best bet.  Here’s a schematic of the multi-purpose screw terminal board if that helps.  The gray area on the 3 solder jumpers in the schematic shows the default position of the jumpers.  If you’re putting resistors in R1 and R2, you’ll want to ch…[Read more]

Hi Matt, sorry I didn’t see your original post from last week.  You are correct in how the resistor divider works, we have several sensors that have a 0-5v DC output, so dividing it in half makes it safe to read with the 3.3v-based circuitry of the Mayfly’s ADS1115.  However, you can also use mismatched resistors to create a divider for s…[Read more]

All of our stations that are using our new sim7089 EnviroDIY LTEbee made the changeover automatically.  The majority of our stations that still have the Digi Xbee LTE module have been offline since the server change, however a few random ones seemed to be fine and were online immediately after the changeover.  The rest of the stations with Digi b…[Read more]

These modules are new enough that I think everyone who has bought one so far is using the same Hologram SIM cards that we use in all of ours.  I’ve deployed over 50 of them in the past couple months with Hologram cards, and according to our dashboard page that shows connection information, they are active on all the major carriers including…[Read more]