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James_NZ started the topic Please Help! Meter CTD Gen2 being blocked by Yosemitech 511-a in the forum Environmental Sensors 1 day, 14 hours ago
Hi everyone,
This problem has been causing me trouble for nearly a year, but it has become unworkable with installation of Gen2 Meter CTD sensors.
My problem: Meter CTD (SDI12) and Yosemitech 511-a Turbidity (MODBUS) sensors seem to interfere with each other causing the CTD to sporadically drop out return -9999 values. This only occurred at some…[Read more]
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James_NZ started the topic Yosemitech Y511-A Wiper Problem in the forum Miscellaneous 2 months, 1 week ago
Hi all,
I have one Yosemitech 511-A sensor that turns on the wiper for approximately 30 seconds with each measurement. The wiper doesn’t move from side to side either, it rotates in a continuous full circle for the full 30s.
Has anyone experienced this? Is this a hardware fault?
James
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James_NZ replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 2 months, 1 week ago
I’m also still very interested in these wings. The Pololu 12v Step-up voltage regulator has been discontinued and I’m struggling to build new wings.
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James_NZ replied to the topic Linking two Mayfly Boards Together in the forum Mayfly Data Logger 3 months, 3 weeks ago
Hi @shicks (and thanks @neilh20),
Thanks for that. I am using a Yosemitech Y511-A with a Hydros CTD (Gen 1). My code is fairly similar to yours. I notice that you use pin 22 to power the Y511 (line 145) where I have ‘-1’. I also don’t see the line ‘<span class=”crayon-i”>AltSoftSerial</span> <span cla…[Read more]
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James_NZ started the topic Linking two Mayfly Boards Together in the forum Mayfly Data Logger 3 months, 3 weeks ago
Hi,
I am having problems with the interference between MODBUS and SDI12 sensors on a Mayfly v0.5 board. I can remove either one and the other works perfectly, but together I end up with around 20% -9999 values, usually for the SDI12 CTD. I am virtually certain this has to do with the home-made modbus wing that I have built for this system. I…[Read more]
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James_NZ commented on the post, How Do EnviroDIY Monitoring Stations Compare With USGS Stations? 7 months, 1 week ago
Hi Scott, interesting article! Regarding turbidity, Rob Davies-Colley, an academic here in NZ has been doing some research comparing nephelometers, as turbidity thresholds are often written into environmental […]
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James_NZ replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 8 months, 3 weeks ago
Hi Neil,
I would only need 5 at this stage. I would connect it to my Yosemitech turbidity sensors and potentially Yosemitech pH sensors as well.
Regards,
James
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James_NZ replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 8 months, 3 weeks ago
Thanks Shannon. Please let me know as I will likely order a few of these and some mayfly 1.1’s.
Appreciate the hard work.
James
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James_NZ replied to the topic 2022 EnviroDIY Hardware Status and Availability in the forum Mayfly Data Logger 8 months, 4 weeks ago
Hi Shannon,
Do you have any idea when the RS-485 half shields are likely to be in stock?
James
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James_NZ replied to the topic Mayfly with Xbee MTech mDot LoRa module in the forum Mayfly Data Logger 9 months, 3 weeks ago
Hi @ddrummonrtp and @aufdenkampe,
I’m interested in using these mDot modules to connect with the Helium network.
Dale or Anthony, would you mind posting your code to integrate mDot modules with the Mayfly?
Thanks for your help!
Regards,
James
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James_NZ replied to the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 11 months ago
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James_NZ replied to the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 11 months, 2 weeks ago
@shicks, thanks for your help anyway Shannon. @aufdenkampe, any insight on the code above would be greatly appreciated.
@neilh20, yes all setups are the same. Some work fine, others have issues with dropping out. I have spare Mayflies and a spare CTD, but no spare turbidity sensor. Did you ever end up producing your Mayfly wings for the 0.5…[Read more]
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James_NZ replied to the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 11 months, 2 weeks ago
Hi @shicks. I’m just wondering if you saw anything in the code above that might be causing this problem?
Regards,
James
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James_NZ replied to the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 11 months, 2 weeks ago
I’m leaning more towards an interaction with the MODBUS wing. I had one station that produced -9999’s constantly when the Turbidity sensor was plugged in, and operated fine when I removed the MODBUS wing. This drove me nuts until Anthony pointed me towards the complex loop code where I set the Turbidity sensor to low a…[Read more]
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James_NZ started the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 11 months, 2 weeks ago
Hi all,
Around 50% of my sites have a problem where the CTD drops out on a regular (not predictable) basis. This results in -9999 values which may persist for a few readings before returning to normal.
I still get a data record out of this, but the resolution is lower and I would like to fix it if possible.
Has anyone experienced this…[Read more]
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James_NZ replied to the topic Interference between HYDROS CTD and Yosemitech Turbidity Sensor in the forum Mayfly Data Logger 1 year ago
Okay, after a good night’s sleep I decided to tackle this again and I think I have fixed it. I simply added a line before the internet connection loop:
modem.modemWake();
It’s now logging to MMW. Please let me know if this is fundamentally wrong or will cause problems in the future.
James
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James_NZ replied to the topic Interference between HYDROS CTD and Yosemitech Turbidity Sensor in the forum Mayfly Data Logger 1 year ago
Hi @aufdenkampe,
I have followed your advice and I think this is working, i.e., I am no longer having problems with -9999 values for the CTD.
However, the complex loop code is preventing publication of data to MMW. I’m sure this is something simple, but I can’t seem to figure it out.
I have tracked the issue to the line where the code checks…[Read more]
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James_NZ started the topic Editing MMW Data Record in the forum Monitor My Watershed 1 year ago
Hi all,
Is there any way to edit the data record for a site on MMW? I have had some problems with one site and would like to delete a section of the data record that is erroneous. I can’t seem to find an option to do this anywhere?
Regards,
James
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James_NZ replied to the topic Interference between HYDROS CTD and Yosemitech Turbidity Sensor in the forum Mayfly Data Logger 1 year, 1 month ago
Thank you Anthony. It sounds like this may be the problem. It seems strange that I have 9 of 10 sites operating perfectly, but this site refuses to play nice. I will try your solution when I get some time over the Christmas break.
Have a great Christmas and New Year.
James
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James_NZ started the topic Interference between HYDROS CTD and Yosemitech Turbidity Sensor in the forum Mayfly Data Logger 1 year, 1 month ago
Hi all,
I have a frustrating problem at one of my sites where the turbidity sensor seems to be interfering with CTD readings resulting in -9999 readings for all CTD measurements. I’m using a DIY MODBUS shield for the turbidity sensor, and when I remove that the CTD reads perfectly. This puts me in a situation of only being able to read the C…[Read more]
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