EnviroDIY | Danny Waz | Activity https://www.envirodiy.org/members/thewaz/activity/ Activity feed for Danny Waz. Wed, 29 Apr 2026 09:19:07 -0400 https://buddypress.org/?v= en-US 30 hourly 2 4b701b4ab3b29a0bb20315bc1ba5fecf Danny Waz replied to the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers https://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/#post-2060 Tue, 07 Mar 2017 16:53:49 -0500 Update 3: Looks like EnviroDIY has merged my backward-compatible slave-side additions into their main library, so you don’t need my fork if you have the latest version. See example “g” for a slave implementation.

]]> 338045b97922b329916fcb088d631feb Danny Waz replied to the topic USB SDI-12 Interface in the forum Infrastructure and Equipment http://envirodiy.org/topic/usb-sdi-12-interface/#post-1761 Mon, 24 Oct 2016 15:10:10 -0400 The code is publicly available in my GitHub (link). For it to work, you will need my fork of the EnviroDIY SDI-12 library in your Arduino/libraries folder. At the time of this comment, it is ahead of EnviroDIY:master and fully backward-compatible, so it will not break your old sketches if you are already using that library.

]]> f2e233c6289dccc6508decf68522ce1a Danny Waz replied to the topic Cellular telemetry for remote locations in the forum Mayfly Data Logger http://envirodiy.org/topic/cellular-telemetry-for-remote-locations/#post-1724 Tue, 20 Sep 2016 18:12:11 -0400 @shicks I assume you have been busy and this hasn’t happened yet… I’d like to start playing around with the GPRSbee on my own. Any recommendation on which Rev to buy and where to buy it?

]]> df07f5d11586bdd268ef6c589622d584 Danny Waz replied to the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers http://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/#post-1697 Tue, 09 Aug 2016 17:26:28 -0400 Update 2: I have posted the modified library and an example implementation sketch in a fork off of the EnviroDIY Arduino-SDI-12 repository.

https://github.com/dwasielewski/Arduino-SDI-12

]]> ada8b62df1955f3b4db7c1950cf43fea Danny Waz replied to the topic Water level monitor with a Mayfly. in the forum Mayfly Data Logger http://envirodiy.org/topic/water-level-monitor-with-a-mayfly/#post-1677 Mon, 25 Jul 2016 16:05:12 -0400 Pardon the somewhat off-topic response, but regarding reading serial data I have found this post extremely helpful. Both of the examples above hold the loop() hostage until the whole string comes in. That’s okay in a small, single-sensor sketch, but it is susceptible to (a) truncating the string if the arduino gets ahead of the incoming data and…[Read more]

]]> 3e75c43826c4198178eb4ba8a2898e70 Danny Waz replied to the topic Water level monitor with a Mayfly. in the forum Mayfly Data Logger http://envirodiy.org/topic/water-level-monitor-with-a-mayfly/#post-1676 Mon, 25 Jul 2016 15:50:20 -0400 According to the datasheet, the “RS232” models MB736x are 0-Vcc (typical RS232 is -13V to +13V). Of course, it will be inverted from TTL, but if you account for that in your softwareSerial constructor, I do not see why you should need an external converter (MAX232 or similar). In fact, the converter might cause problems if it’s shifting the…[Read more]

]]> 5b6043f0ec7d743454d501367e63e59e Danny Waz replied to the topic Cellular telemetry for remote locations in the forum Mayfly Data Logger http://envirodiy.org/topic/cellular-telemetry-for-remote-locations/#post-1639 Tue, 05 Jul 2016 15:50:11 -0400 Thanks, @shicks. I will look into those too. I am glad to hear you are planning a tutorial already.

]]> f9bd6612c766d0625ef7df2cb75719c7 Danny Waz replied to the topic Cellular telemetry for remote locations in the forum Mayfly Data Logger http://envirodiy.org/topic/cellular-telemetry-for-remote-locations/#post-1638 Tue, 05 Jul 2016 15:39:15 -0400 Thanks for the links. Of these, the NimbeLink Skywire looks most like what I was imagining. The FONA boards have some promise, but the Adafruit library does not support data yet for the linked 3G version. I would consider a cell modem like the Raven a good option for a remote system based on a full-fledged computer (say, an RPi or NUC), but it…[Read more]

]]> c11da9d4dc8957843e54f11de61f1d23 Danny Waz replied to the topic USB SDI-12 Interface in the forum Infrastructure and Equipment http://envirodiy.org/topic/usb-sdi-12-interface/#post-1573 Fri, 17 Jun 2016 20:34:06 -0400 I should mention that when I was about 90% done with it, I discovered Vegetronix offers something similar off-the-shelf. However, I am benefiting from some advantages to my approach:
1. It is customizable, which is especially useful for integration into custom applications on the host PC
2. Total cost was ~$15

]]> b20e496704025c12d6ff0e77f00d371a Danny Waz started the topic USB SDI-12 Interface in the forum Infrastructure and Equipment https://envirodiy.org/topic/usb-sdi-12-interface/ Fri, 17 Jun 2016 20:24:34 -0400 Inspired in part by S Hicks’s SDI-12 Sensor Display (and in part by how much trouble it was to debug a custom SDI-12 device), I built a handy little interface based on an Arduino Nano and SWRC’s SDI-12 library. Just connect the GND and SDI-12 data lines to your SDI-12 bus under test, plug the interface into a USB port, and open up…[Read more]

]]> 4f1733f3089ae8ffca4cb075525ed475 Danny Waz started the topic Cellular telemetry for remote locations in the forum Mayfly Data Logger http://envirodiy.org/topic/cellular-telemetry-for-remote-locations/ Fri, 17 Jun 2016 18:33:56 -0400 Are you using the Mayfly in any remote locations where cellular telemetry is necessary? Do you know of any products (e.g. 3G modem, cellular bee module?) whereby one might establish wireless IP connectivity to the Mayfly, or at least have data periodically pushed up to a remote server? Any “getting started” tips would be appreciated!

The…[Read more]

]]> f8b956393f735ad9951fb93363c6e9de Danny Waz replied to the topic Ultrasonic Stream Depth Sensors in the forum Environmental Sensors http://envirodiy.org/topic/ultrasonic-stream-depth-sensors/#post-1496 Fri, 20 May 2016 18:39:28 -0400 You are not missing something. It would be more accurate to say “ultrasonic stage height sensors”, because depth is merely retrieved, not sensed. This is problematic when one cannot easily survey the sensor as you said, even more problematic for sensing streams with moving beds. Presently, something like a pressure transducer can measure depth…[Read more]

]]> 8bc24b03c7bb215519c8c9aa58554d40 Danny Waz replied to the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers http://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/#post-1495 Fri, 20 May 2016 18:22:11 -0400 Update: I have succeeded in making an SDI-12 slave device on an Arduino Nano, but I have more work to do before my code can be generalized and distributed.

The project linked by GS is not really a slave-side library but rather an attempt to build a sketch implementing an SDI-12 slave with the SWRC’s SDI-12 master library. This did not work for…[Read more]

]]> ed969a501450d78cf6c32c53aa78c633 Danny Waz posted a new activity comment https://www.envirodiy.org/activity/p/1516/#acomment-1532 Fri, 20 May 2016 17:51:55 -0400 Neat! I’m looking forward to trying this out! I believe it will help me to get around some limitations of the proprietary logger I’m using and allow me to make sensor installations that would not be economically viable otherwise.

In reply to - Shannon Hicks wrote a new post Mayfly boards now available on Amazon Update: We have closed our Amazon shop. See the EnviroDIY Shop for current availability. We are excited to announce that our Mayfly Data […] ]]> e23070dc16aa24c59d7d426406704b9a Danny Waz replied to the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers http://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/#post-1371 Thu, 28 Jan 2016 22:11:16 -0500 Thanks! It will be a few weeks before I get a chance to try out this library live, but at first glance it appears to be almost exactly what I was planning to make.

]]> 13c66a5b7b5eb597c608b9f99014dcf6 Danny Waz replied to the topic Solar Power Supply in the forum Infrastructure and Equipment http://envirodiy.org/topic/solar-power-supply/#post-1340 Fri, 08 Jan 2016 23:00:41 -0500 Before I get to the questions, let’s look at the battery issue. Reading between the lines, I’m assuming you actually want a 1.2 V power supply, not a 2.4 V supply. If that’s the case, then yes, wiring your 3 AAs in parallel will work and increase the capacity. That said, I’m curious as to what you are powering off of 1.2 V. Any Arduino-based…[Read more]

]]> dc21978d42d73127f0aecdf24a2f0c6f Danny Waz started the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers http://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/ Fri, 08 Jan 2016 15:44:45 -0500 I see that much effort has been invested in connecting off-the-shelf SDI-12 sensors to an Arduino-based datalogger, and for good reason. I have the opposite challenge: integrating a custom sensor (a smart sensor with an Arduino brain) with an existing off-the-shelf SDI-12 datalogger already deployed at a field site.

Before expending the effort…[Read more]

]]> 6ebdb56798b564f368d59a59d37610cc Danny Waz started the topic Custom Arduino-based sensor, off-the-shelf SDI-12 datalogger in the forum Other Data Loggers http://envirodiy.org/topic/custom-arduino-based-sensor-off-the-shelf-sdi-12-datalogger/ Fri, 08 Jan 2016 15:44:45 -0500 I see that much effort has been invested in connecting off-the-shelf SDI-12 sensors to an Arduino-based datalogger, and for good reason. I have the opposite challenge: integrating a custom sensor (a smart with an Arduino brain) with an existing off-the-shelf SDI-12 datalogger already deployed at a field site.

Before expending the effort to write…[Read more]

]]> 3a754954cb8c04e163059476acc8b51f Danny Waz became a registered member https://www.envirodiy.org/activity/p/1364/ Fri, 08 Jan 2016 15:20:55 -0500 0