EnviroDIY | Luis Andres Guillen | Activity https://www.envirodiy.org/members/lg0018mix-wvu-edu/activity/ Activity feed for Luis Andres Guillen. Mon, 27 Apr 2026 17:07:58 -0400 https://buddypress.org/?v= en-US 30 hourly 2 35ba64ebdbdc48892d83cd6ab4732537 Luis Andres Guillen posted an update: @diatrix Have you tried getting a quote for the Proteus? […] https://www.envirodiy.org/activity/p/4157/ Fri, 02 Aug 2019 12:53:06 -0400 @diatrix Have you tried getting a quote for the Proteus? Maybe is worth it until the technology is more widely available.
Thanks for the video, I had no idea of that environmental problem, I’m actually going to El Cuyo on Sunday, and later to other parts of Yu, and visit Tulu, the week after next. Are you at an NGO, University? Maybe there is a…[Read more]

]]> 1 1130368a28a982b66541085096ddef00 Luis Andres Guillen posted a new activity comment https://www.envirodiy.org/activity/p/4144/#acomment-4147 Thu, 01 Aug 2019 20:27:00 -0400 Hello Diego,
That is an interesting project. Is it in Yucatan Peninsula?
I think that the advice that you have been given is correct. I don’t know of any sensor that can measure fecal matters real time. The usual way is to monitor the water at fixed intervals, and take the samples to the lab where they can tell you if the bacteria is present.…[Read more]

In reply to - Diatrix posted an update in the group Sensor Developers Hello everyone. I’m slowly developing a water quality sensor to monitor water pollution in underground krastic river systems. The main pollutant in these […] ]]> 75ae0414b7acf69043947ec2c0c0de93 Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2383 Tue, 07 Nov 2017 14:03:21 -0500 Hello community! I still have the issue with the data loggers time step. The mayfly doesn’t read my computers time and is not updating. Do you know what could be reason for that problem and how i could solve it???

I’ve attached the modified code from the libraries that I’m using.

Thanks very much in advance.

]]> 401842e8b37b0fdedea2323987fcea5c Luis Andres Guillen replied to the topic Solar panel of 12v compatibility with Mayfly in the forum Mayfly Data Logger https://envirodiy.org/topic/solar-panel-of-12v-compatibility-with-mayfly/#post-2371 Wed, 18 Oct 2017 22:42:47 -0400 Thank you very much for your answers! I understand that I don’t need such a large panel, but that one is already in the field an I could plug into it.

Would this transformer from 12v to 6v work? or do you recommend a different one?…[Read more]

]]> 9fcf892ba43eb1b5cfefd225249fc966 Luis Andres Guillen started the topic Solar panel of 12v compatibility with Mayfly in the forum Mayfly Data Logger https://envirodiy.org/topic/solar-panel-of-12v-compatibility-with-mayfly/ Sat, 14 Oct 2017 20:15:13 -0400 Hello, is it possible to connect the Mayfly to a 10w or 20w solar panel that also has an output of 12volts? or would that be too much and would overcharge the batteries or damage the board?
Thanks in advance!

]]> cc65c52436931ec12dff0e0f54fab3b3 Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2360 Tue, 10 Oct 2017 02:30:20 -0400 I have the Mayfly v 0.4 could that be the issue? .

]]> 06da37151cc9cca501034fb7fe92ed2d Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2359 Tue, 10 Oct 2017 02:21:15 -0400 I get the same issue with the single sensor sketch. A value that is 6 meters or 5 meters more than reality.

I also cannot get the arduino to get the actual time. it starts and stays in 01-01-2000. Any thoughts about that?

]]> b9ed505931a7eb2a9d3eafbf1f890a3e Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2358 Fri, 06 Oct 2017 20:10:49 -0400 Thanks Sara, I got the libraries installed now! existed to try out the new modules! Stroud rocks!

]]> f8ceffbe03e9bcd01837332ece37a03c Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2351 Mon, 02 Oct 2017 19:54:40 -0400 Thank you Sara,
I got to work with the example sketch. Hurra!
I have seen how much work you have put into the ModularSensors library, and I was trying to make that work, but I’m stuck in trying to download the library dependencies as .zip files, in order to get the libraries into Arduino. I could only download the “.h” files. I’m obviously new…[Read more]

]]> 131fd5e30a716d1ffb01ec0774032c92 Luis Andres Guillen replied to the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/#post-2262 Tue, 27 Jun 2017 14:14:38 -0400 Hello Shannon,
Did you have a chance to take the pictures of the wiring setup. Or are they posted somewhere else?
Thank you in advance!
Luis Andres Guillen

]]> c18e26fe02faf8b77c2d5ada70558580 Luis Andres Guillen posted a new activity comment https://www.envirodiy.org/activity/p/2536/#acomment-2545 Fri, 09 Jun 2017 12:12:28 -0400 Thank you! I had not noticed the yellow led, that is really helpful to know if it is charging. I went through the connections again and it seems to be charging now! Thanks again!

In reply to - Luis Andres Guillen posted an update in the group Data Logger Developers Hello, In order to charge the battery of the Mayfly with a solar panel, do I need to put instructions in the code? If so were do I find […] ]]> 947da50af4b55318f93e505c3edbefa4 Luis Andres Guillen posted a new activity comment https://www.envirodiy.org/activity/p/2536/#acomment-2539 Wed, 07 Jun 2017 18:30:48 -0400 Thanks for the prompt answer.
The panel should be from the starters kit from last year, around the Cuashi meeting. I got it from Nicolas.
I have the connected it that way. Panel to SOLAR and Battery to LIPO BATT JP2
The letters are KE3J.

In reply to - Luis Andres Guillen posted an update in the group Data Logger Developers Hello, In order to charge the battery of the Mayfly with a solar panel, do I need to put instructions in the code? If so were do I find […] ]]> 03dbca6320e60778cca861a65cae8163 Luis Andres Guillen started the topic Wiring Ultrasonic sensor w/ temp compensator in the forum Mayfly Data Logger https://envirodiy.org/topic/wiring-ultrasonic-sensor-w-temp-compensator/ Wed, 07 Jun 2017 18:21:41 -0400 Hi,
I am trying to get a Ultrasonic sensor to work. Hope I can get help with 3 questions:

1. I need to wire the temperature compensator Maxbotic MB7955 to the Ultrasonic sensor MB7389. I have already a terminal soldered to the Ultrasonic sensor. I know that the red cable from the temp compensator goes to pin 1 in the ultrasonic sensor, but then…[Read more]

]]> 97dc660ec45088261c57ec1d322e2a8a Luis Andres Guillen posted an update in the group Data Logger Developers: Hello, In order to charge the battery of the Mayfly with a […] https://www.envirodiy.org/activity/p/2536/ Wed, 07 Jun 2017 17:51:24 -0400 Hello,
In order to charge the battery of the Mayfly with a solar panel, do I need to put instructions in the code?
If so were do I find that line of code?
In case the mayfly doesn’t need any code to read the solar panel, Why isn’t my mayfly getting charged from the solar panel?
Thanks in advance,
Luis Andres Guillen

]]> 4 f24b199104f061581d9619a4254f1193 Luis Andres Guillen posted a new activity comment https://www.envirodiy.org/activity/p/2488/#acomment-2501 Tue, 23 May 2017 12:04:06 -0400 Thank you very much for the information Shannon. I have already several of those sensors, so I wanted to put them into use. I I’ll check which type of water content they have found in the site to see if that is an appropriate sensor. Thanks!

In reply to - Luis Andres Guillen posted an update in the group Data Logger Developers Hello, Does anyone have experience in connecting a Campbell Scientific CS616 Water Content Reflectometer to the Mayfly? In that case how […] ]]> 409936c0fdfaf2e83d9d28b8f5eb465c Luis Andres Guillen posted an update in the group Data Logger Developers: Hello, Does anyone have experience in connecting a Campbell […] https://www.envirodiy.org/activity/p/2488/ Mon, 15 May 2017 18:05:00 -0400 Hello,
Does anyone have experience in connecting a Campbell Scientific CS616 Water Content Reflectometer to the Mayfly?
In that case how do I go about it? How much power would I need to sample every 30 minutes?
I am new to this field, so all comments and direction are really welcome.
Thanks,
Luis Andres Guillen

]]> 2 0f2224254caf3e89e686105557f61782 Luis Andres Guillen replied to the topic LCD Display Mayfly in the forum Mayfly Data Logger http://envirodiy.org/topic/lcd-display-mayfly/#post-2003 Fri, 03 Feb 2017 21:17:59 -0500 Hi Shannon,
I am interested in a sample sketch of how to write the info on the display.

]]> 842b9f1e7feb0ca21bb5d1d290d0cc3f Luis Andres Guillen became a registered member https://www.envirodiy.org/activity/p/1790/ Thu, 06 Oct 2016 16:50:07 -0400 0