Shannon Hicks

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]

It’s not really an error, it’s just an artifact of the Eagle Cad schematic component since the original part in my library was for the ADS1015/1115, since both parts share the same footprint and schematic shape, but there’s no way to easily change the name displayed without editing the device.  I had to manually update that on previous Mayfly…[Read more]

There is no benefit in turning off the USB dipswitch if your board will be deployed with only a Lipo for power.  The switch is there solely for the purpose of deactivating the USB interface chip in case you are powering the Mayfly via the USB jack and want to save power, because the CP2102 chip can draw up to 10ma when idle, so turning it off can…[Read more]

I’ve never experienced this problem with any of the Mayfly boards on any of the various PCs I’ve used them on, but I do have a colleague who has a similar problem with another CP2102-based board.  I think his solution was that sometimes it takes plugging and unplugging the device a few times before Windows finally recognizes it and assigns a com…[Read more]

Sara is the person who wrote that PCSync program, so she’ll have to be the one to comment on why it’s not working.  I’m assuming it’s just looking for the FT232RL device of the older Mayfly boards and isn’t programmed to see the CP2102 of the Mayfly 1.0 as a viable device.  In the meantime, you can just use the the DS3231/adjust.ino sketch to m…[Read more]

I added a sketch called “DRWI_sim7080LTE.ino” to our Github repository.  You can find it here https://github.com/EnviroDIY/ModularSensors/tree/master/examples/DRWI_sim7080LTE along with a brief summary.

We’re still working out the bugs in the libraries that was cause by an update to an external library that is included in our bundled files (the…[Read more]

I’ve been trying to resolve an issue with a sensor library file that is currently causing an error when users compile any sketches using ModularSensors.  Sara and I worked on it this afternoon and will hopefully have it resolved soon.  In the meantime, I’m working on an instructional page for the sim7080 module as well as posting example s…[Read more]

The Mayfly v1.0 boards use a new USB interface chip called the CP2102 instead of the old FT232RL that was found on earlier Mayfly boards.  When you first connect it to your computer, your operating system should recognize it and install the necessary drivers.  I connected each new Mayfly to 3 different computers (2 PCs and one Mac) before s…[Read more]

The same Hologram SIM cards we’ve been using for the past year in the Digi boards work just fine in the new EnviroDIY LTE boards.

The new EnviroDIY LTE bee works in the old Mayfly 0.5b boards, and no LTEbee adapter is needed.  The LTEbee adapter is only needed when using Digi boards with Mayfly 0.5b boards.

Digi LTE CAT M1 boards work directly…[Read more]