Shannon Hicks

Always a lot of work getting a new revision out and running compatibility tests. I always admired the way
Paul Stoffregen of PRJC created a fishbowl for the releases, one I remember with the Teensy had a process of managing/advertising the release and being clear about it being in beta https://forum.pjrc.com/threads/27689-Teensy-LC-Beta-Testing

@s…[Read more]

Hello @shicks.  Just wondering if you can give any insight as to the process, when you think you might be able to tell us about what the new revision looks like, or possibly any visibility on when it might be available, and the process gates you are going through.  I realize some times this is a bit like asking how long is a piece of string, and h…[Read more]

Hi @shicks. Thank you. I was considering pogo pins. I assume you just solder them in and push the adapter board down to test? I guess I could also solder female headers into the wingshield holes and males into the adapter boards. This would allow me to test each adapter board on one rig, and I could just solder the male headers into new wing…[Read more]

@shicks have you read their current product specs? Don’t take my word for it.

Thanks @shicks, great to know. Would you recommend that I push back on them for Gen-2 sensors, even if they take a bit longer to get here? It seems silly to rush things through and end up with an inferior sensor.

James

Hello @shicks  ~ I’m just following up on this as I’m respinning my  Modbus Board  https://github.com/neilh10/SensorModbusMaster/blob/release1/hardware/knh002-MayflyWingShield/rev6/knh002r6_rs485schematic.pdf

to have a SDI-12 interface, and your board got me thinking .

The Mayfly socket has +5V and +3.3V and the board can have the boosted +12…[Read more]

Hello @shicks thanks for the response. I was thinking partly of the SDI-12 specification modules driving 5V back into the 3.3V ports.  The Insitu LT500 that I’ve been using does respond to Mayfly driving it on 3.3V, but then drives back SDI12 specified 5V which has to be mitigated.

Do you see any issues with the level shifter and the port…[Read more]

Thanks @shicks. COVID has meant that not everything is available at my end of the world, so I need to compromise sometimes!

Hi @shicks.  I need a number of turbidity sensors for an upcoming project, and I have a reasonable quote from Yosemitech (~510USD each).  What additional interface hardware are you referring to for the Yosemitech probes?  Has anyone tested them and can vouch for their accuracy?

Hi everyone,

Just a quick update.  The 100k voltage divider worked perfectly. My new voltage water level relationship is below.

Thanks again for your help @shicks.

James
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@shicks The previous thread about I2C power that I’m aware of was when I learned that the jumper on the I2C grove port needs to remain in the constantly-powered position, otherwise the Wire library crashes, at least with certain sensors, including the Turner.

I *think* my Mayfly is sleeping: All LEDs switch off, if that means anything. If I…[Read more]

@shicks Thanks for those details. I wonder whether it could be the turbidity sensor, rather than the Mayfly, that’s actually drawing power, but I wouldn’t have thought it could do that while (or if) the Mayfly is sleeping. A bit more about my circuit:

I’m powering the Turner from Mayfly’s switched 3V3. The Turner’s analog output is 0-5V, which…[Read more]

Gosh @shicks that is great to hear.  I wonder would you share how you made the sleep measurements with the microSD present. Any sketches for putting the mega1284 to sleep. Getting to 0.5mA would be fantastic!

Matt Interesting real data with a coulomb counter. Great stuff.

My current measurements on 0.28.01 for sleep are 2.5mA . I haven’t got a…[Read more]

Aha – I think that must be it. I retested with a new Mayfly, and its reported voltage agrees with my multimeter within 0.1V. The old Mayfly (s/n is either 180080 or 190080) was probably purchased in 2018, and has been my desktop tester, almost always under USB power, so didn’t detect any problems until now.

Thanks @shicks!!

Matt

Ah, got it! That makes total sense to me know. Thanks @shicks !

Matt

Thanks, @srgdamiano and @shicks! After working through the code, what seemed to work was actually placing the sensor sleep commands in my getdata() function. For whatever reason it didn’t work too well in the systemSleep function as it seemed to stall my sensors and not allow enough time to wakeup the sensors for reading. Still working on cleaning…[Read more]

@shicks, that’s great to hear that you have a bunch of tipping buckets connected directly to the Mayfly. Could you share that code with us? Is it integrated with ModularSensors? It would be very valuable to do that.

I can’t remember all the reasons for developing the TippingBucketRainCounter device application for the Pro Trinket. I do remember…[Read more]