Selbig – EnviroDIY

Selbig started the topic How to dump contents of file on SD card to serial in the forum Mayfly Data Logger 3 years, 5 months ago

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]

Selbig replied to the topic InSitu RDO PRO-X not reading in the forum Environmental Sensors 3 years, 5 months ago

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!!!!

Selbig started the topic InSitu RDO PRO-X not reading in the forum Environmental Sensors 3 years, 5 months ago

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]

Selbig replied to the topic Logging Mayfly with Decagon SDI-12 Sensor in the forum Mayfly Data Logger 3 years, 6 months ago

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.

Selbig replied to the topic Logging Mayfly with Decagon SDI-12 Sensor in the forum Mayfly Data Logger 3 years, 6 months ago

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]

Selbig replied to the topic Transfer file from SD card to iOS/Android via bluetooth in the forum Infrastructure and Equipment 3 years, 10 months ago

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]

Selbig started the topic Transfer file from SD card to iOS/Android via bluetooth in the forum Infrastructure and Equipment 3 years, 11 months ago

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]

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