All content on EnviroDIY is licensed as Creative Commons Attribution-ShareAlike 4.0. Hardware designs on EnviroDIY are released under the CERN Open Hardware License 1.2. Alternative licenses are available. Learn more
All content on EnviroDIY is licensed as Creative Commons Attribution-ShareAlike 4.0. Hardware designs on EnviroDIY are released under the CERN Open Hardware License 1.2. Alternative licenses are available. Learn more
Community Activity See all activity
DaveG replied to the topic pc and Mac unable to communicate with mayfly ver. 0.5b in the forum Mayfly Data Logger 2 years, 7 months ago
Thanks, Shannon.
I’ll try to clean it up a bit this afternoon but I think the corrosion is pretty bad – based on the image.
I’ll keep an eye out on Amazon to see when the single boards become available.
Thank you again for your time and help.
Dave
Shannon Hicks replied to the topic pc and Mac unable to communicate with mayfly ver. 0.5b in the forum Mayfly Data Logger 2 years, 7 months ago
The Adafruit CP2104 Friend has the correct 6-pin layout to work perfectly with the FTDI interface header on all Mayfly versions. The attached photo shows one connected to a Mayfly 1.0 but you can connect it to the Mayfly v0.5b the exact same way. Give that a try and see if you’re able to communicate with the Mayfly board. If not, it’s possible t…[Read more]
UrbanPromise Trenton became a registered member 2 years, 7 months ago
UrbanPromise Trenton
@emartinupt
DaveG replied to the topic pc and Mac unable to communicate with mayfly ver. 0.5b in the forum Mayfly Data Logger 2 years, 7 months ago
Hi Shannon,
We got the Adafruit adapter and sent it and the board to a local university where our intern is from to have the engineering dept. do the soldering. A couple of issues came up. One is that the pattern on the Adafruit adapter doesn’t match the screen printing on the board… but the bigger issue is that the artel/main chip looks l…[Read more]
neilh20 replied to the topic Keller CTD Sensor in the forum Environmental Sensors 2 years, 7 months ago
A further note on developing a new interface over Modbus; is to then check that when its running the instrument is actually reporting well over that interface.
I’ve integrated an LT500 Modbus into ModularSensors – and the question now is how well does it perform. Does it actually report and work well. I’ve had this working well on the SDI-12, so…[Read more]
EricF replied to the topic Time zone reminder for MMW in the forum Monitor My Watershed 2 years, 7 months ago
Thanks Shannon. I would not expect the mayfly to adjust for time zone and/or daylight saving time. The logger should record “absolute” time (plus offset), as you described. And that’s what should be recorded in the MMW database. It is then up to the display program, our webpage interface to MMW in this case, to calculate for the users time zone…[Read more]
Shannon Hicks commented on the post, New Mayfly v1.1 release date and Product Status page 2 years, 7 months ago
In case people might not have noticed since the 10th, the EnviroDIY shop has the new Mayfly v1.1 board in stock in 5-packs of the boards, the starter kits, and the fully monitoring station kit. We’re still trying […]
Shannon Hicks started the topic Time zone reminder for MMW in the forum Monitor My Watershed 2 years, 7 months ago
This is just a little reminder that here in North America the local time jumped one hour forward last night for Daylight Saving Time, however the Monitor My Watershed website does not adjust the timestamp for data, meaning everything on the website is still shown in local standard time.
For example, the MMW webpage from a Mayfly monitoring…[Read more]
neilh20 replied to the topic Keller CTD Sensor in the forum Environmental Sensors 2 years, 7 months ago
@dan-wachusett I’ve just done quite a bit more work with modbus protocol, including developing an InsituModbus and though I would share here what I found out.
What its shown me is that possibly for the Keller CTD, a baby step may be to o start with https://github.com/EnviroDIY/KellerModbus and modify examples/GetValues to see if you can pull t…[Read more]
Sara Damiano replied to the topic Hydros CTD-10 Regularly Dropping Out (-9999) in the forum Environmental Sensors 2 years, 7 months ago
If the communication works sporadically, it’s more likely to be an electrical issue than a code issue. Coding issues *usually* cause it to not work at all.
The -9999 is the library’s value for a failed reading. When you get in in SDI-12, it most often means the sensor didn’t respond or the response was garbled. Because the Mayfly’s voltage (a…[Read more]