Sara Damiano

Alright, here’s something.  I can’t promise it *works*, but I’d like to see the results.

#include <Arduino.h>
#include <Wire.h>

#define DEVICE_I2C_ADDRESS 
    0x4D  // I *think* this is the address it's using for itself
//…

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There is simply no excuse at all for them selling you something without doing this for you..

I’m sorry, I’m looking through their firmware and trying to figure something out for you.  I hate half-answering a question.

WRT to the wire distance, yes and no.

RS485 is a two-wire protocol where 0’s and 1’s are differentiated by the difference in voltage between the two wires.  Electrically, this means it can be used over long distances (ie, up to 4,000 feet).  To use RS485 the processors that are talking each need to have their own internal clocks and each s…[Read more]

I’m sorry.  This must be frustrating.  Northern Widget sold you a sensor and doesn’t seem to be willing to tell you the basic information you need to make it work.   You need to know both what firmware you have and how the firmware communicates before you can talk to it with a Mayfly or with *anything*.  Otherwise it’s pretty useless.  That is no…[Read more]

If they haven’t provided you with the documentation on how to communicate with their sensor and firmware, then it’s worthless.  You’d have to dig through their firmware file and reverse engineer the communication protocol.  I’m sorry.  Maybe someone else will pipe in that they’ve already done it

Bobby Shultz or Northern Widget did some of the work to incorporate the MPL115A into ModularSensors, but I haven’t followed what they’ve been doing.

It looks like this Walrus thing has an on-board processor that in between the Mayfly and the MPL115A.   So you need to use whatever protocol they’ve developed for themselves not the MPL’s I2C…[Read more]

The “best” way to work with ModularSensors would be to write the c/h files and submit them as a pull request. 🙂  But if the calculated variable is working, then feel free to keep using it that way for yourself.

If you define your variable for the DS18 temperature as something like Variable* ds18Temp = <span class="pl-k">new</span>…[Read more]

Oops, sorry that I missed this.

Are you using slashDevin’s original NeoSWSerial or are you using my fork? (It’s in SRGDamia1, not EnviroDIY.)  The original didn’t implement the peek function which would cause it to fail.

The address of the DS3231 isn’t changeable – it’s permanently set when the chip is manufactured.  Is there any other way your sensor can communicate?  Does it have a physical addressing method?  Many I2C sensors have an “addr” pin that you can set to be high or low to change the address.  Can it communicate via SPI or UART so you can use one of…[Read more]

Are you sure you’re SDI-12 address is set correctly?  You can use this program to check/change it:  https://github.com/EnviroDIY/ModularSensors/blob/master/tools/sdi12_address_change/sdi12_address_change.ino

The access is denied error doesn’t mean the Mayfly is off, it means something else (another program or window on your computer) is monopolizing that serial port. Usually you see it when you try to upload a program or start a serial port monitor when another serial port monitor was already running.

If you have the Mayfly plugged directly into the…[Read more]

Is your Mayfly turned on and plugged in? That error means your Mayfly isn’t being detected.

Follow the datasheet.  If the docs for ModularSensors disagree they’re probably outdated or just wrong.  I’m s..l..o..w..l..y.. working through the documentation and transferring to a Doxygen based documentation set here:  https://envirodiy.github.io/ModularSensors/getting_started.html.  But I’ll add this to my list of bits to fix.

Wahoo, that’s connected!  *Usually* after you’ve made a few connections it connects more quickly the next time, but signal quality of -81 isn’t stellar, so it might still be somewhat slow.  Are you testing at where you’re going to deploy?  If so, you might want to take some time fiddling with just the right arrangement of the antenna and other wi…[Read more]

You can try adding a network scan before the “waiting for network registration” section.  It won’t help you connect, but it should show what networks have signal.

    // Scan for networks - this is probably really slow
    gsmModem.sendAT(GF("AS"));
    gsmModem.waitResponse(180000L, GF("S"), GF("ERROR"));
    while (Serial1.available()) {…

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But it seems like you might have kind-of low signal, if that -93 is valid.  Does anyone around have an AT&T cellphone?  Do they have ok signal?

Hologram doesn’t work on Verizon.  Sometimes they say the do, and for a while we actually got it to work, but usually it’s only AT&T.

Woops, sorry, the XBee uses carriage returns instead of new lines so the 22/23/25 isn’t appearing.

Add this to your platformio.ini:

monitor_flags=
    --eol
    CR

Your log will suddenly get a lot longer.