Adam Gold

@w3asa

Hi Jim – To get the linear correction, you should be able to make a calculated variable in .ino file and have that reported to MMW. It looks like there’s no code for calculated variables in the DRWI_CitSci.ino, but it is in the menu_a_la_carte.ino. Hope this helps!

Hi Brian, I wasn’t able to get version 0.23.11 to work, but I think my issue is related to code for the Sodaq Ubee R410M modem that I’m using (and possibly PlatformIO). I do get a 504 sending error when running 0.22.6, though. Fortunately, I was able to get version 0.21.4 working great after I made a fresh PlatformIO project and manually installed 0.21.4

Thanks, @srgdamiano! I think that the “CEREG” change helped with the registration issue. I’m still not able to get ModularSensors 0.23.16 up and running, though. Seems like another modem issue – these things are definitely finicky! I’ll reach out through the SARA R410M modem GitHub thread or email. Thanks again for your help!

Interesting, thanks for the reply! It’s odd that bypass mode works for the Xbees because the Sodaq Ubee I think is always talking directly to the Ublox.

I don’t have the latest firmware update. I’ve gotten in touch with Ublox for help updating the firmware because it looks like some Hologram folks have had LTE-M issues that have been resolved by…[Read more]

You can do this remotely if you send data to ThingSpeak (already supported by ModularSensors). There are caps on how many ThingSpeak channels you can have and still have it be free (4 per account, I think), but you can make a ThingSpeak channel email or tweet at you when it meets certain conditions. Here’s a similar question about alarms from the…[Read more]

Based on the list of supported sensors (https://github.com/EnviroDIY/ModularSensors), it looks like a Yosemitech DO sensor is another option.

You might want to check out Atlas Scientific DO sensors (https://www.atlas-scientific.com/product_pages/kits/do_kit.html). They are galvanic probes that are cheap and fairly accurate (+- 0.05 mg/l), but they do require a fair bit of effort to piece together. You would need the DO kit (previous link, $280), an isolated carrier board ($40, https://w…[Read more]

I’m having a similar problem with the LTE-M Xbee3 that folks in this forum have already described, but slightly different. I have the same hardware as Cal and Brian, but I have a Taoglas LTE-M/NB-IoT antenna. Using the menu_a_la_carte.ino from Modular Sensors, the modem will throw a lot of “NO RESPONSE” messages while trying to synchronize with…[Read more]

@w3asa Hi Jim, I figured I’d address the Atlas Scientific code question in this forum. I sent a pull request to the Modular Sensors library on GitHub yesterday with some messy code that I got to work with temperature, EC, and DO Atlas sensors using I2C, and it looks like @srgdamiano already made a new branch of the Modular Sensors library called…[Read more]

Thanks for adding those to the portal. Those are the only ones that I plan on using.