https://www.envirodiy.org/members/selbig/activity/ Activity feed for Selbig. Fri, 12 Jun 2026 23:51:10 -0400 https://buddypress.org/?v= en-US 30 hourly 2 b0ab574f866df3d0d781191b65c065fa https://www.envirodiy.org/topic/how-to-dump-contents-of-file-on-sd-card-to-serial/ Thu, 01 Jul 2021 17:08:28 -0400 I had a working sketch that allowed me to transfer the contents of a file on the SD card using bluetooth. I switched over to the Mayfly board and am now using code from the menu-a-la-carte; however, when incorporating the lines of code previously used to dump the file contents. I get an error indicating ‘reference to File is ambiguous’. I think…[Read more]

]]> db1a52f30eff4761903603ea92554ac0 https://www.envirodiy.org/topic/insitu-rdo-pro-x-not-reading/#post-15630 Wed, 30 Jun 2021 00:20:52 -0400 Thank you for the useful advice. I grounded the Mayfly to the 12v battery ground and voila! The RDO is reading perfectly. Never would have thought of that one so you saved me a ton of time. Thanks!!!!

]]> 0f6a22148e71e7f40630590de61d1368 https://www.envirodiy.org/topic/insitu-rdo-pro-x-not-reading/ Tue, 29 Jun 2021 21:33:08 -0400 I’m using the code pulled from the menu_a_la_carte for the InSitu RDO PRO-X and Decagon ES2. I’m able to get values for the Decagon but the RDO returns -9999 values. I was able to communicate with the RDO using WinSitu software and change the SDI address to 5. I’m powering the RDO using a separate 12v battery. I’m pretty confident my connections…[Read more]

]]> 8404ee961e3f89a0543f1330638105ca https://www.envirodiy.org/topic/logging-mayfly-with-decagon-sdi-12-sensor/#post-15609 Fri, 11 Jun 2021 13:13:32 -0400 I was able to get it to work correctly. The only thing I changed was removal of the UUIDs for all of the variable pointers. I also moved the voltage pin so D7 was getting 5v instead of 3.3. I don’t know if that was what caused the initial error but it’s working now.

]]> ddf04b35b1a842825850a59aedad5173 https://www.envirodiy.org/topic/logging-mayfly-with-decagon-sdi-12-sensor/#post-15606 Thu, 10 Jun 2021 19:28:04 -0400 I am able to retrieve values from my Decagon ES2 sensor, but only temperature. Conductivity comes back with a value of 0.0. When I hook it up to a Campbell Scientific CR1000 logger, both conductivity and temperature come back with reasonable values. In fact, temperature is the same using the CR1000 as it is the Mayfly. I’m using the pre-programmed…[Read more]

]]> ca68898b31fcadaea274006a6b36be0d https://www.envirodiy.org/topic/transfer-file-from-sd-card-to-ios-android-via-bluetooth/#post-15072 Fri, 29 Jan 2021 03:15:12 -0500 Thanks for the input. I got it figured out. It’s a pretty sweet arrangement that will make life easier for data collection. As @neilh indicated, the Mayfly logger, bluetooth HM-10, battery, and all wires will be in a waterproof box above the water with the sensors in the water below secured to channel iron or some other rod. There’s an app called…[Read more]

]]> 00c0fa31692df758d035c775774495c0 https://www.envirodiy.org/topic/transfer-file-from-sd-card-to-ios-android-via-bluetooth/ Wed, 06 Jan 2021 15:27:53 -0500 Newbie question here…I successfully setup the Mayfly to measure and record temperature and dissolved oxygen to the SD card. Access to the loggers will require someone to paddle out in a canoe or kayak. Rather than have them risk dropping the SD card in the water while transferring data to a laptop, I’d like to have a simple file transfer via…[Read more]

]]> 6ed0126f8406346162f6642c3ada2c18 https://www.envirodiy.org/activity/p/5803/ Wed, 06 Jan 2021 15:18:49 -0500 0