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@klstokes
Active 5 years, 4 months ago-
Kevin Stokes replied to the topic Minor Glitch Reading Maxbotix MB7389 with Mayfly in the forum Mayfly Data Logger 6 years, 5 months ago
I have an update. I think the problem comes from the reading the sensor with SoftwareSerial_ExInts. There is data left in the read buffer after the read. I’m not sure if this is a real fix, but it seems to work. There is a section of code in MaxBotixSonar.cpp that reads the six header lines from the sensor, after the power is turned on. I changed…[Read more]
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Kevin Stokes started the topic Minor Glitch Reading Maxbotix MB7389 with Mayfly in the forum Mayfly Data Logger 6 years, 5 months ago
We have deployed a water depth station using a Maxbotix MB 7389 ultrasonic sensor with a Mayfly datalogger. It is dutifully reading the sensors every 11 minutes and uploading the data to data.enviroDIY.org. We are using “Logging_to_EnviroDIY,” modified for our sensors. The data site is Paulding County High School Retention Pond (PCHS_POND), in…[Read more]
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Kevin Stokes replied to the topic Testing Data Uploads to data.envirodiy.org in the forum Mayfly Data Logger 6 years, 7 months ago
Thank you Beth and Sara. We are currently using older code to simply wake up the Mayfly, take data, and write to an SD card. This has been deployed outdoors and works. I see the best way to implement the cell phone telemetry is to use code based on “logging_to_EnviroDIY” and the associated libraries. I have only had a chance to download this code…[Read more]
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Kevin Stokes replied to the topic Sonic sensors and their enclosures in the forum Infrastructure and Equipment 6 years, 7 months ago
This first version had no cord grips. The students used silicone sealant but water was able to seep in somewhere. They say it didn’t flood. I have since purchased cord grips, http://www.newark.com/jacob/50007m12pasw-f/cable-clamp-gland-polyamide-thrd/dp/15M6172?ost=1168781&ddkey=http%3Aen-US%2FElement14_US%2Fsearch. Like the ones you suggested,…[Read more]
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Kevin Stokes started the topic Testing Data Uploads to data.envirodiy.org in the forum Mayfly Data Logger 6 years, 7 months ago
I would like to deploy a sensor station and upload the data to data.envirodiy.org. I have a Mayfly datalogger and can take ultrasonic range data for water depth and temperature data and store the data on an SD card. I have a GPRSBee Rev. 6 and an activated SIM card. I am ready to register a site on data.envirodiy.org, but I would like to test the…[Read more]
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Kevin Stokes replied to the topic Sonic sensors and their enclosures in the forum Infrastructure and Equipment 6 years, 7 months ago
Thank you. The students came up with almost the same idea; the attached image is their first design. We found some PVC pipe fittings that we think will help and we are working on a new design. Basically, we found a 4″ PVC cap that has a flat top which we think will make it easier to attach the Pelican case.
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Kevin Stokes posted a new activity comment 6 years, 9 months ago
Thank you. I checked out the link, that is very nice. Right now we only have the ultrasonic sensor, but I wanted to add temperature sensors for water and air. In the future, we might add a rain gauge.
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Kevin Stokes posted a new activity comment 6 years, 9 months ago
I have a couple of high school students making a water-depth sensor with the MB7389 ultrasonic sensor and a Mayfly data logger. The information you posted has been very helpful. We are also using the Pelican 1120 case. The problem we are having is attaching the case/MB7389 to the top of the 4″ PVC pipe that we are using for a stilling well. Any s…[Read more]
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Kevin Stokes became a registered member 7 years, 4 months ago
Hi Kevin, I’m not sure about an elegant way to mount a pelican case to the pipe. My current cases are all pole mounted with two 10″ zinc mending plates mounted to the back of the Pelican case using bonded sealing washers to keep the case dry. Then the mending plates are mounted to a post in the ground. If you have only ultrasonic sensors on the…[Read more]
Thank you. I checked out the link, that is very nice. Right now we only have the ultrasonic sensor, but I wanted to add temperature sensors for water and air. In the future, we might add a rain gauge.
Kevin, I was just thinking, how about mounting a PVC end cap to the back of the pelican case (so the door of the case is on top) and drill and tap the PVC and case to accommodate the ultrasonic sensor? It would look something like the one linked above, but roomier. Then you have the case mounted as a sort of well cap and you have room to add…[Read more]