EnviroDIY | caroline@wachusett | Activity https://www.envirodiy.org/members/carolinewachusett/activity/ Activity feed for caroline@wachusett. Mon, 06 Jul 2026 18:49:57 -0400 https://buddypress.org/?v= en-US 30 hourly 2 2d2c1dd8ef6afd95f0e66f023bf9bbab caroline@wachusett replied to the topic Hydros21 Reporting -9999 on Mayfly 0.5b in the forum Mayfly Data Logger https://www.envirodiy.org/topic/hydros21-reporting-9999/#post-19705 Thu, 11 Jun 2026 17:48:20 -0400 Hi Shannon,

 

Thank you for the response. I ran the board attached to my computer in Arduino and the red LED3 light did come on when the sample was run. I put a voltmeter across the GND and V pins and the voltage was 3.3v when the sample was collected.

 

The sketch on the 0.5b board is older than 2022 so that would explain why the new Gen2…[Read more]

]]> 33c4e2e18c4f8abed83e69d8072fe647 caroline@wachusett started the topic Hydros21 Reporting -9999 on Mayfly 0.5b in the forum Mayfly Data Logger https://www.envirodiy.org/topic/hydros21-reporting-9999/ Tue, 09 Jun 2026 11:49:47 -0400 Hello,

We have a Mayfly station with a version 0.5b board and a Hydros21 CTD sensor attached. The sensor had been working for years at the site but recently, the CTD measurements were being reported as -9999 for all three parameters. I tried troubleshooting and ended up swapping out the sensor for a new Hydros21 CTD sensor. Before deploying, I…[Read more]

]]> b2ed1928742daff13868e9831ac3f699 caroline@wachusett replied to the topic Issues with Digi XBee 3 Global Modems in the forum Mayfly Data Logger https://www.envirodiy.org/topic/issues-with-digi-xbee-3-global-modems/#post-19242 Thu, 07 Aug 2025 18:44:40 -0400 Hi Shannon,

We are using the Mayfly version 1.1 board to test the Digi modems. The specific Digi modem we are testing is linked…[Read more]

]]> 3425a11e2dee6f076201e686ae806717 caroline@wachusett started the topic Issues with Digi XBee 3 Global Modems in the forum Mayfly Data Logger https://www.envirodiy.org/topic/issues-with-digi-xbee-3-global-modems/ Thu, 07 Aug 2025 16:11:08 -0400 Hello,

Our group ordered the Digi Xbee 3 Global Modems (XB3-C-GM2-UT-001) to connect to our Mayfly boards. We have a combination of 0.5b and 1.1 boards that we use in the field. I have been using a 1.1 board to perform tests on the new modems but I have not had any success uploading the data to Monitor My Watershed. I have attached the sketch I…[Read more]

]]> f6854677c98ee4330b2e7d8d9ce9c32b caroline@wachusett replied to the topic New Xbee Modem: XB3-C-GM1-UT-001 in the forum Mayfly Data Logger https://www.envirodiy.org/topic/new-xbee-modem-xb3-c-gm1-ut-001/#post-19171 Wed, 02 Jul 2025 15:32:49 -0400 Hi Shannon,

 

I was wondering if you had a chance to revisit the Digi modules and if so, did you have any success?

 

Thank you,

Caroline

]]> 023a4a7d0da2ddae57623d29fbf151f8 caroline@wachusett replied to the topic New Xbee Modem: XB3-C-GM1-UT-001 in the forum Mayfly Data Logger https://www.envirodiy.org/topic/new-xbee-modem-xb3-c-gm1-ut-001/#post-19139 Fri, 30 May 2025 14:01:27 -0400 Hi Shannon,

Thank you for the quick response and I appreciate your help! If you end up finding out anything, please keep me updated.

]]> 95f86c4e66da67666043aaa25c525f2f caroline@wachusett replied to the topic New Xbee Modem: XB3-C-GM1-UT-001 in the forum Mayfly Data Logger https://www.envirodiy.org/topic/new-xbee-modem-xb3-c-gm1-ut-001/#post-19137 Fri, 30 May 2025 13:05:29 -0400 Hello,

Thank you for your quick response Bob! To be honest, I am fairly new to working with the Mayfly boards. I was wondering if anyone at EnviroDIY had any luck with the modems since this was initially posted in September and if so, could direct me to an example sketch to use that turns off the 2G fallback. Or if there is any other sketch that…[Read more]

]]> c180019765e2ff37b5ab3335366a12e2 caroline@wachusett replied to the topic New Xbee Modem: XB3-C-GM1-UT-001 in the forum Mayfly Data Logger https://www.envirodiy.org/topic/new-xbee-modem-xb3-c-gm1-ut-001/#post-19134 Wed, 28 May 2025 12:23:30 -0400 Hello,
<p class=”user-nicename”>@bblumenscheid or any other EnviroDIY user who may know, I was wondering if you know whether both the Digi XBee 3 Global (GM2) and the Digi XBee 3 Low-Power (GM1) modems work on the Mayfly 1.1 board in the U.S.? We have the Global GM2 modem and we have not been able to send data to MMW successfully. It uploaded one…[Read more]

]]> 29b170bcea2d846ccb10d105c068a53a caroline@wachusett became a registered member https://www.envirodiy.org/activity/p/10592/ Tue, 27 May 2025 19:32:32 -0400 0