Sensor readings of -9999 mean the Mayfly logger isn’t receiving valid data from the CTD sensor. If this is a brand new sensor, then it’s probably because the sensor SDI-12 channel number is set to the default channel of 0 (zero) and the Mayfly needs the sensor to be something other than that (because for Meter Group sensors, channel 0 means the…[Read more]
I recently finished assembling the mayfly kit and have the Hydros 21 in a bucket of water, however, the data being uploaded to monitor my watershed is not correct. I’m not sure if I assigned the variables in Arduino incorrectly or if the Hydros is not calibrated properly? I wanted to check in here before I started messing with the…[Read more]
Yes, this was a custom board I designed for the NWS ASOS program. We are using it for a translator to connect a Vaisala HMP-155E to the ASOS. The original ASOS is RS-232 over fiber and we aren’t able to change the source code any longer. So adding a new sensor required me to make the HMP-155E talk to our system like it was a different sensor.…[Read more]
Wow nice to see the pictures and mechanical detail. I always find that a challenge to get integrated early – mostly because I’m doing everthing. Is it part of an open source project? sounds like its for a specific translator/extender fiber optics to copper RS485/RS23 In looking over the Rpi PICO, while an amazing processor with program st…[Read more]
I’ve ported MS to the Wio Terminal – which has an ARM “CORTEX-M4” SAMD51 microprocessor
It opens up a whole field of potential Adafruit boards that also use versions of the SAMD51 https://www.adafruit.com/search?q=SAMD51 The big benefit of the SAMD51 is that it can got to a 2Mbytes of Flash and possibility even larger with XIP “execute in…[Read more]
Rick Vogel replied to the topic Communication hardware selection advice for development in the forum Infrastructure and Equipment 1 month ago
If you are worried about paying for cellular service you might look into Twilio. They have a SuperSim that we used in our XBee-NB/IOT units that will connect to 4 carriers. It costs $2 month for the card and they only charge you for usage. We were running MQTT w/TLS with small messages for temp every 5 and precip every 15 with other hourly…[Read more]
@neilh20 Yes, the chip supply pretty much put a spike in the Teensy 3.5 for any type of continued development and usage with that chipset. We used the 3.5 because of it’s 5V tolerant I/O. The Teensy 4.1 did not have that so the project stalled for a bit. I believe the folks who have taken that project over are considering moving the XBee to a…[Read more]
Great, thanks @srgdamiano! Got it working on my desktop; now will deploy into the field.
One small change: The lib_deps line I used to grab the latest ModularSensors was:
(without a version number).
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