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
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Shannon Hicks replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 6 months ago
There’s one 3.3v regulator that’s always powered on the Mayfly (anytime the Mayfly power switch is ON, even if the processor is put to sleep), and that can be found along the top (inward end) of each of the 20-pin headers, helpfully next to the GND pin you’d also need for sending power to an external device. The three switched power options…[Read more]
Scott Ensign replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 6 months ago
On a Mayfly V1.0 Rev A3, is power to the 2X10 analog header controlled by pin 22 or is the header constantly powered? I’m trying to utilize power from the 2X10 analog header while the grove ports are not powered (pin 22 is low) if this is possible.
James_NZ replied to the topic Hydros 21 Gen 2 -9992 values in the forum Environmental Sensors 1 years, 6 months ago
Hi Shannon (@shicks),
Thanks for your reply, and apologies for not replying sooner. My replies to your message are in bold:
[Read more]
Matt Barney replied to the topic Modem Alternatives (Verizon certified) in the forum Mayfly Data Logger 1 years, 6 months ago
We’ve had success using the EnviroDIY modem on Verizon (though I recognize that the modems are currently out of stock). See this thread for details on the SIM and APN.
dan@wachusett replied to the topic Modem Alternatives (Verizon certified) in the forum Mayfly Data Logger 1 years, 6 months ago
Thanks for the quick reply Sara. I might be willing to use jumper wires, but realistically, I lack the time and expertise to figure this out on my own in the near term. If someone else has done this and wants to share a fairly detailed how-to, I could probably follow along. I may circle back on this at some point in the future, time permitting.
Sara Damiano replied to the topic Modem Alternatives (Verizon certified) in the forum Mayfly Data Logger 1 years, 6 months ago
As of a few years ago, the Skywire were _NOT_ compatible with the Mayfly. They use the XBee footprint, but they’ve re-arranged some of the pins so that it won’t work with the Mayfly – 0.5 or 1.x. At the time, each Skywire variant used slightly different pin-outs so you couldn’t even exchange between them directly.
I don’t know of any other…[Read more]
dan@wachusett started the topic Modem Alternatives (Verizon certified) in the forum Mayfly Data Logger 1 years, 6 months ago
Hello EnviroDIY,
I am wondering if there are other modems that can operate on the Mayfly 1.1 that are certified on the Verizon network? The new EnviroDIY modems are not certified on the Verizon network, so I can’t use those.
Unfortunately, working for a government agency means that I cannot choose the cellular provider that I want, I must go…[Read more]
Sara Damiano replied to the topic SDI-12 sensors wake-up time after powering up in the forum Environmental Sensors 1 years, 6 months ago
Oh, your right, that’s from the break. I’m not sure about the power line.
Pavel replied to the topic SDI-12 sensors wake-up time after powering up in the forum Environmental Sensors 1 years, 6 months ago
Where did you get that value, Sara? Can you explain it little bit? Is that somewhere in SDI-12 specification? In spec, there is written that sensor have to wake up from low power standby mode within 100 ms after detecting break. But that is regarding data line and I think says nothing about 12V power supply line.
Sara Damiano replied to the topic SDI-12 sensors wake-up time after powering up in the forum Environmental Sensors 1 years, 6 months ago
100ms