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Shannon Hicks replied to the topic Logging Mayfly with Decagon SDI-12 Sensor in the forum Mayfly Data Logger 4 years, 1 months ago
Thanks for the photo. The screw terminal pic looks fine, on pic of the Mayfly, it’s hard to see the jumper pins for the D6-D7 grove jack, but can you verify that there is a jumper (shunt) on the pins as seen in this photo.
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Shannon Hicks replied to the topic Logging Mayfly with Decagon SDI-12 Sensor in the forum Mayfly Data Logger 4 years, 1 months ago
Can you post a picture of your sensor wiring showing how it’s connected to the terminal board and also a photo showing how it’s connected to the Mayfly? Did you make any changes at all to the address changing sketch? I’ve personally used almost 500 sensors (CTD, soil moisture, conductivity, etc) from Meter group and have never had a bad one right…[Read more]
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Shannon Hicks replied to the topic Logging Mayfly with Decagon SDI-12 Sensor in the forum Mayfly Data Logger 4 years, 1 months ago
Check your wiring, the Meter group CTD sensor has a red wire for the data (signal) wire, white is positive voltage, and black is ground. It’s kind of backwards from most common DC sensor wires where red is usually the voltage supply wire. I’ve confirmed with the folks at Meter that the sensor works just fine at 3.3v.
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Shannon Hicks replied to the topic Seeeduino Stalker v3.0 discussion in the forum Other Data Loggers 4 years, 1 months ago
Not sure why it’s not working based on what’s visible in the sketch you posted. But I’m guessing there’s something happening in the TM1637Display library that is looking for return data or confirmation from the display in order for the sketch to continue, so without the display plugged into your Stalker, the sketch hangs and stops, rather than…[Read more]
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Shannon Hicks replied to the topic Mayfly SCL and SDA voltage level in the forum Mayfly Data Logger 4 years, 1 months ago
Matt is correct, the pullup resistors on the I2C bus on the Mayfly board are soldered to the board and can’t be disabled unless you want to unsolder them, which will cause issues if you try to use I2C devices on the Mayfly like the DS3231 clock or the ADS1115 aux A/D.
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Shannon Hicks replied to the topic Changing I2C address of RTC in the forum Mayfly Data Logger 4 years, 1 months ago
I just read through various manuals and datasheets for the K30 sensor, and it is technically possible to change the I2C address of the sensor, but it’s not easy so I wouldn’t suggest it. But the manual says the board also does serial UART output so you can just follow their example code for Arduino UART to modify it for working with the Mayfly’s…[Read more]
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Shannon Hicks replied to the topic Hydros 21/Decagon CTD: reading error in the forum Environmental Sensors 4 years, 1 months ago
As Sara suggested, the issue is probably related to the SDI-12 address of the sensor. Meter Group ships all of their sensors with a default SDI-12 address of “0” (zero). They do this because it’s the channel their sensors need to be programmed to for working with their own brand of dataloggers. But Meter group sensors don’t respond to SDI-12…[Read more]
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Shannon Hicks replied to the topic MMW Data Outage? in the forum Monitor My Watershed 4 years, 2 months ago
The Hologram network was back up and running early this morning, and there have been no further issues with their network today. All of the stations that lost connectivity on Sunday are functioning normally.
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Shannon Hicks replied to the topic Status of 2G network? in the forum Infrastructure and Equipment 4 years, 2 months ago
T-mobile is the only provider of 2G service that works with the GPRSbee modules that many people are using with the Mayfly, including about 40 stations managed by Stroud. T-Mobile plans to deactivate the network by the end of 2020, so anyone wishing to modernize their Mayfly’s cell technology will need to replace the GPRSbee with a 4G LTE board.…[Read more]
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Shannon Hicks replied to the topic MMW Data Outage? in the forum Monitor My Watershed 4 years, 2 months ago
This is an equipment question and not related to MMW, so I’ll answer that in your other forum thread.
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Shannon Hicks replied to the topic MMW Data Outage? in the forum Monitor My Watershed 4 years, 2 months ago
The station at Punches Run has been back online for several hours now. It has a 4G board on it. The cellular hardware is either 4G only or 2G only. The connectivity issues are occurring somewhere in Hologram’s system behind the scenes and I don’t know any of the details, other than all of our 2G stations are still offline, and some of our 4G…[Read more]
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Shannon Hicks replied to the topic MMW Data Outage? in the forum Monitor My Watershed 4 years, 2 months ago
There was a major worldwide outage with Hologram yesterday that is still being resolved. You can read more about the details here on their status page: https://status.hologram.io/
So it’s not a MonitorMyWatershed outage, it has only affected EnvidoDIY stations with 2G modems, because none of our stations with 4G modems were affected. T-Mobile…[Read more]
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Shannon Hicks posted a new activity comment 4 years, 2 months ago
That’s the one parts we didn’t replenish, so I don’t have a timeline on when we might get more and restock the protoshields.
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Shannon Hicks replied to the topic MayFly Kit/Bee Adapter availability in the forum Mayfly Data Logger 4 years, 2 months ago
Good news, Amazon finally processed the shipments and our items show up again in their system, but there will still be a delay until they’ve fully distributed within their warehouse network and start shipping them out. Also remember that if you want to purchase more than 10 of any of the items, we’d really prefer you to contact us directly at…[Read more]
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Shannon Hicks replied to the topic MayFly Kit/Bee Adapter availability in the forum Mayfly Data Logger 4 years, 2 months ago
For anyone looking or an update on board availability: We sent a huge shipment of boards, kits, and adapters to Amazon almost 3 weeks ago, they received them a few days later but still have not processed them and added them back into their inventory. So we’re still waiting for that to happen, and the products will not show up on Amazon until…[Read more]
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Shannon Hicks replied to the topic Mayfly SCL and SDA voltage level in the forum Mayfly Data Logger 4 years, 2 months ago
All of the data lines on the Mayfly run at 3.3 volts. The 2.2k resistors on the I2C lines are the pullup resistors that are required per the I2C design spec.
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Shannon Hicks replied to the topic MayFly Kit/Bee Adapter availability in the forum Mayfly Data Logger 4 years, 3 months ago
As stated above, I’m prepping the products right now for shipment to Amazon, so they should be available whenever Amazon receives them, processes them, and lists them as available on their system again. I have no idea how long their side of things will take, sometimes it’s only a few days, but lately it’s been more like a week or more. Amazon is…[Read more]
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Shannon Hicks replied to the topic XBee – R410M – Can't connect in the forum Mayfly Data Logger 4 years, 3 months ago
There’s also the possibility that the LTEbee adapter board is broken or dead. We’ve had a few rare instances of them not working due to a manufacturing defect on the first batch of boards. So if you’ve got another LTEbee adapter you could swap out, or get a carrier board for the Xbee LTE module, you can determine which is the dead part.
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Shannon Hicks replied to the topic XBee – R410M – Can't connect in the forum Mayfly Data Logger 4 years, 3 months ago
Are you using one of our LTEbee adapters between the Digi Xbee LTE module and the Mayfly board? https://github.com/EnviroDIY/LTEbee-Adapter
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Shannon Hicks replied to the topic MayFly Kit/Bee Adapter availability in the forum Mayfly Data Logger 4 years, 3 months ago
We received a shipment of new boards from the manufacturer last week, and I’m working right now on testing and packaging everything, so we’ll be sending them to Amazon next week and they should be available on there shortly after that.
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