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Matt L. became a registered member 3 years, 11 months ago
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Wetlands & Ecology became a registered member 3 years, 11 months ago
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neilh20 replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
Hi Sara, the short answer is no.
I’ve had some other urgent issues that have come up, and so have had to leave it for a while. In my test bench trial above over a couple of days with 2minute sleep/wake – 3 runs from reset – all failed after #1~5hrs #2 4.5+7.5 #3-4Hrs – so something happening after 100+ sleep/wake events.
Its seems like it m…[Read more]
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Sara Damiano replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
Did the extra power smoothing work for you? I’ve noticed the issues with the WiFi XBee’s, but I wasn’t having them drop that frequently and we don’t have any “production” loggers deployed with WiFi, so I never bothered to try and fix anything.
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Sara Damiano replied to the topic Transfer file from SD card to iOS/Android via bluetooth in the forum Infrastructure and Equipment 3 years, 11 months ago
I’m sorry, I’ve never tried anything with Bluetooth, so I’m only guessing here.
If the Bluetooth chip is that simple, and you have it connected to TXD and RXD on your Mayfly, you should print to the bluetooth using just
Serial.print
and not do anything with SoftwareSerial.Serial
is the TXD and RXD on the Mayfly. You could also connect it to T…[Read more] -
Sara Damiano replied to the topic Optical dissolved oxygen solutions? in the forum Environmental Sensors 3 years, 11 months ago
Oh, bother, and I missed that the chip on the RS485 shield does not have automatic flow control and the DE and REnot aren’t even on the same pin. The library has support for a single DE/REnot pin, but for two separate pins. You’ll need to physically join those pins for the library to work. Run a jumper wire between A4 and A5 and then use ei…[Read more]
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Sara Damiano replied to the topic Optical dissolved oxygen solutions? in the forum Environmental Sensors 3 years, 11 months ago
Ok, I’m looking at the Arduino website now.
So it looks like the MKR is a SAMD21 based board, not an AVR based board like the UNO. So, then, yes, just including AltSoftSerial will cause the code to fail to compile because AltSoftSerial is AVR only.
Based on the schematics, the MKR RS485 shield connects the Tx and Rx of the RS485 to
Serial1
of…[Read more] -
Sara Damiano replied to the topic Optical dissolved oxygen solutions? in the forum Environmental Sensors 3 years, 11 months ago
@madbird – I’m sorry, I’m not at all familiar with the MKR or any of its shields. For anything to work, you need to know what kind of serial port you need and how the pins are connected. Merely creating and not using an AltSoftSerial instance shouldn’t be a problem at all. But, of course, nothing’s going to work if you don’t tell the code th…[Read more]
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Madbird replied to the topic Optical dissolved oxygen solutions? in the forum Environmental Sensors 3 years, 11 months ago
Hi @sara,
I am trying to connect a y4000 to my arduino using an mkr 485 sheild (RS485) for hardware serial port using your arduino library for y4000, till now with no luck.
I suspect it is because of the “AltSoftSerial” creating software port while I am using a hardware one, but I am not sure how to modify this.
Can you please help with some…[Read more]
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Madbird became a registered member 3 years, 11 months ago
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Rafael Oliva became a registered member 3 years, 11 months ago
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neilh20 replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
In order to check if the Vcc is causing the Xbee S6B WiFi modem a problem, I’ve put together a separate regulator based on the TCR3DF335,LM which regulates to 3.35V and can pulse to 400mA, with a normal spec of 300mA. The S6B spec is for 3.14-3.46V . The TCR3D fits on a SC74 prototyping board with 1uF decoupling.
SMT is so nice when you have…[Read more]
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Heather Brooks replied to the topic MMW is down in the forum Monitor My Watershed 3 years, 11 months ago
The problem has been addressed and Monitor My Watershed is back up. Thanks for your patience.
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Heather Brooks replied to the topic MMW is down in the forum Monitor My Watershed 3 years, 11 months ago
Thanks for reporting, and thanks to @mbarney for opening a GitHub issue. The development team is taking a look.
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Jake Lemon started the topic MMW is down in the forum Monitor My Watershed 3 years, 11 months ago
I’m getting a “bad gateway” message when trying to access MMW.
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Shannon Hicks replied to the topic LTE-M1: Bluetooth, Cellular 4G LTE CAT-M1 (AT&T/Verizon) Availability in the forum Mayfly Data Logger 3 years, 11 months ago
Yes, Digi-Key has over 4,500 of them in stock right now: https://www.digikey.com/en/products/detail/digi/XB3-C-A2-UT-001/7932027
Mouser only has ~350 right now and is slightly more expensive than Digi-Key: https://www.mouser.com/ProductDetail/DIGI/XB3-C-A2-UT-001
Note that Digi (makers of the cellular modem) and Digi-Key (an electronics d…[Read more]
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Cheryl Nolan started the topic LTE-M1: Bluetooth, Cellular 4G LTE CAT-M1 (AT&T/Verizon) Availability in the forum Mayfly Data Logger 3 years, 11 months ago
Does anyone know if the LTE-M1: Bluetooth, Cellular 4G LTE CAT-M1 (AT&T/Verizon) is still available from Digi XBee Cellular? When I do a search for it on their site this comes up Digi XBee Cellular LTE Cat 1, Verizon LTE Cat 1, Dual U.FL, TH.
Thanks
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neilh20 replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
I’m testing the stability of the Mayfly with the Digi WiFi S6B with software using the 0.27.5 base., running off the LiPo battery.
Some of the the WiFi S6B hybrids initially connect to the WiFi network, get NIST time, and then later after a couple of cycles of sleeping/waking will no longer connect to the wifi. I’ve connected a Salaea Logic…[Read more]
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neilh20 replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
I’ve received more “LTE Bee Adapter” cards, and looking to experiment using it to investigate why the Xbee WiFi S6B is not reliably connecting to the local wifi network. https://github.com/neilh10/ModularSensors/issues/21
The LTE Bee Adapter card provides power directly from the LiIon battery, control of the Xbee reset, and potentially also an…[Read more]
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neilh20 replied to the topic Stability Testing ~ how to do it? in the forum Mayfly Data Logger 3 years, 11 months ago
Well after running for some time with the WiFi S6B, and still having problems after it has been running for a couple of hours,
I’ve switched to one my target field internet comms of Digi XBee3 LTE-M over Verizon.Very interesting the Digikey RevXsystems https://dataplans.digikey.com (thanks to @mbarney for the suggestion) has a new low cost…[Read more]
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