EnviroDIY | Greg Cutrell | Activity https://www.envirodiy.org/members/gregcutrell/activity/ Activity feed for Greg Cutrell. Thu, 09 Apr 2026 07:40:42 -0400 https://buddypress.org/?v= en-US 30 hourly 2 01862030102d48515c5057b97ac1b4b4 Greg Cutrell replied to the topic Monitoring Buoy on Reservoir/Lake in the forum Infrastructure and Equipment https://www.envirodiy.org/topic/monitoring-buoy-on-reservoir-lake/#post-16309 Wed, 26 Jan 2022 14:58:10 -0500 If your only interested in a month of data and not concerned about a long-term deployment, I would just put the Mayfly/hardware/batteries in a nice IP 67 or 68 enclosure with a voltaic solar panel and strap it to a something like a spare buoy. The picture attached isn’t pretty but would probably work for long-term deployment in small inland lakes.

]]> 075e116f365fe3b05006b957bfa6bc4a Greg Cutrell replied to the topic LSM303 Accelerometer + Compass library integration into ModularSensors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/lsm303-accelerometer-compass-library-integration-into-modularsensors/#post-12859 Tue, 19 Mar 2019 00:05:34 -0400 Thanks! Bummer about not being able to average out samples over a period of time but I understand the power limitations for a normal mayfly system.

The double logger was going to be my fall back so we can at least save some higher frequency data. I was using the Decagon5TM sensor as an example but was getting an warning on the…[Read more]

]]> 76867a714a27235c890c38b2357a42d3 Greg Cutrell replied to the topic LSM303 Accelerometer + Compass library integration into ModularSensors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/lsm303-accelerometer-compass-library-integration-into-modularsensors/#post-12857 Mon, 18 Mar 2019 18:03:34 -0400 On the topic of averaging. It seems the averaging parameter takes a number of consecutive measurements. I thought the measurement_time variable might offset each consecutive measurements but it doesn’t seem to work that way, just the initial measurement. Is this correct? I have been playing around in the SDI12Sensors.cpp file and was sure if I…[Read more]

]]> d638d2b45dc0cce69c42db2c6a033752 Greg Cutrell replied to the topic LSM303 Accelerometer + Compass library integration into ModularSensors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/lsm303-accelerometer-compass-library-integration-into-modularsensors/#post-12856 Mon, 18 Mar 2019 12:49:12 -0400 Thanks for the update confirmation and information about when the calculated variable takes place. I’ll see how much time I can spend on the best way to integrate the compass. The best way to is to call it in a custom .cpp file for the wind sensor, which is SDI-12. That way every every time the wind data is requested from the sdi-12 sensor the…[Read more]

]]> 3fd10addbdd6683b2d8dd3e147084671 Greg Cutrell replied to the topic LSM303 Accelerometer + Compass library integration into ModularSensors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/lsm303-accelerometer-compass-library-integration-into-modularsensors/#post-12851 Fri, 15 Mar 2019 12:18:02 -0400 Thanks Sara! My I2C port is not switched and confirmed that it had 3.3V. I didn’t think about looking into what the begin() function is actually doing. It turns out applying the begin() before every compass object creating did the trick!

As for actually saving the compass data could I create a constructor for a calculated variable where the value…[Read more]

]]> cb235de16aed2daea1c9d40a0170032c Greg Cutrell started the topic LSM303 Accelerometer + Compass library integration into ModularSensors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/lsm303-accelerometer-compass-library-integration-into-modularsensors/ Thu, 14 Mar 2019 01:36:27 -0400 While getting the Mayfly into the water quality buoy world we got a couple LSM303’s to calculate the compass direction at which the mayfly is facing. It uses I2C and is really easy to get running using the tutorial at https://learn.adafruit.com/lsm303-accelerometer-slash-compass-breakout/coding. Adafruit’s library for the sensor at https://github.c…[Read more]

]]> 748fc89565b61fe495b8d0ff740ab70b Greg Cutrell replied to the topic Campbell Scientific CS-215 SDI-12 communication issues w/ Mayfly in the forum Mayfly Data Logger https://www.envirodiy.org/topic/campbell-scientific-cs-215-sdi-12-communication-issues-w-mayfly/#post-12834 Thu, 28 Feb 2019 13:33:16 -0500 @saradamiano – I was going to bring up the _numReturnedVars issue when also doing a pull request for the YSI EXO. There are sensors out there, like the YSI sondes, where users typically set their own sdi-12 output so you can’t really create a header that has variables and variable counts set in there. It really needs to be done in the ino file.…[Read more]

]]> 31a4df098018b52892e9c5955dcfd8a9 Greg Cutrell replied to the topic Campbell Scientific CS-215 SDI-12 communication issues w/ Mayfly in the forum Mayfly Data Logger https://www.envirodiy.org/topic/campbell-scientific-cs-215-sdi-12-communication-issues-w-mayfly/#post-12832 Wed, 27 Feb 2019 13:28:11 -0500 Unless you can make a large enough buffer to accommodate 20-30 values the full proof other option is to have a way a to check if the number of received values equal the number of expected from concurrent result command. If it doesn’t then increase the dataOption value from D0! to D1! and so on. I piggy-backed off your code SDI12Sensors code and…[Read more]

]]> e84a582d27aef692d0ac3df7f7e2baa1 Greg Cutrell replied to the topic Campbell Scientific CS-215 SDI-12 communication issues w/ Mayfly in the forum Mayfly Data Logger https://www.envirodiy.org/topic/campbell-scientific-cs-215-sdi-12-communication-issues-w-mayfly/#post-12827 Mon, 25 Feb 2019 19:08:10 -0500 Thanks Shannon! This is a clean way to implement a logic board to power converter! I have finally successfully retrieved and saved 18 values from our YSI EXO2, which itself requires a signal output adapter to transmit SDI-12, using the modular sensors library. This was done without using a logic converter and powering the EXO externally with…[Read more]

]]> 00c80c3c5111a154353382a7b2cfde22 Greg Cutrell replied to the topic Campbell Scientific CS-215 SDI-12 communication issues w/ Mayfly in the forum Mayfly Data Logger https://www.envirodiy.org/topic/campbell-scientific-cs-215-sdi-12-communication-issues-w-mayfly/#post-12809 Tue, 19 Feb 2019 17:39:06 -0500 Thanks Shannon. Could you share the logic converter you have had success with? I like to give another logic converter a shot.

]]> 2a6a8601d0d7218a8155aa2547a0c78f Greg Cutrell replied to the topic Campbell Scientific CS-215 SDI-12 communication issues w/ Mayfly in the forum Mayfly Data Logger https://www.envirodiy.org/topic/campbell-scientific-cs-215-sdi-12-communication-issues-w-mayfly/#post-12787 Thu, 14 Feb 2019 15:50:42 -0500 Dave,

Just curious if you ever revisited this issue over the winter? I am having the exact same issue with a Viasala WXT530 and YSI EXO. I did find a post where I guy successfully got his WXT530 to work back in 2017 (https://hankpai.weebly.com/sandbox/arduino-data-logger-vaisala-some-code). We are powering the devices with 9V and able to change…[Read more]

]]> 171666ac6599f2a82155b4d43ea94f30 Greg Cutrell became a registered member https://www.envirodiy.org/activity/p/3818/ Thu, 14 Feb 2019 15:24:58 -0500 0