Hans, designing a thing to work at -20C+45C and IP67 (protected from dust and rain from all directions) is a very difficult task, even if you'll use something like Kiste pointed to ( I have the Japanese resistive version of that position sensor in 2% linearity). One thing you should care about is the dew point. https://www.vaisala.com/en/expert-article/dew-point-temperature-what-does-it-mean-and-how-can-it-be-calculated That's because you will have humidity even in a completely closed box. The most dangerous temperature for dewpoint in my area is around +8C. The only way you can avoid moisture problems is to immerse your PCB completely in transformer varnish ( several times, not once) and dry it each time after. Of course no more HW debugging after that. P.S: I think your wife is right. :) best wishes,
On Mon, Dec 26, 2022 at 11:40 PM hans <hanze...@zeelandnet.nl> wrote: > Hi Tom/ Kiste > , Thank you for your detailed response. Years ago I tried an Arduino set, > but I didn't get further than a few simple examples. After my C64 and > C-basic period, I don't feel like tripping over all those small changes in > the language again. I'm happy to stay with JAL. I've had so much fun with > it already. > I made my anemometer about fifteen years ago. I read the 16 positions with > 4 light barriers and one IC shows the LEDs along a cable to our living > room. . For the wind speed I adapted a bicycle spedometer. > Now there are some moisture problems and I want to make some adjustments. > I will take your experience with me in my adventure > What Kiste indicates is quite a nice thing, but according to my wife I am > done much too quickly. And she is often right. > Anyway, as soon as the Chinese package arrives, I can continue. > Happy new year and best wishes to all. > regards > Hans > > Op maandag 26 december 2022 om 19:42:18 UTC+1 schreef Tom: > >> >> (resent with smaller photo files...) >> >> >> -------- Forwarded Message -------- >> Subject: Re: [jallib] AS5600 >> Date: Mon, 26 Dec 2022 13:34:09 -0500 >> From: Tom Crawford <tomc...@gmail.com> >> Reply-To: tomc...@gmail.com >> To: jal...@googlegroups.com >> >> Some answers to the several questions some of you have asked; hopefully >> they are helpful. >> First, most of my 8 bit work is with Arduino, and their IDE. I have used >> PICs and JAL in the past, but not recently. >> >> 1. Cold weather: >> - I do not know yet, although I believe it will work fine. The new >> device has only been bench tested indoors so far. So many projects, so >> little time! Also, the new device is for the weather station parts of our >> Little Free Library (LFL, see https://littlefreelibrary.org/ for more >> info), located at the end of our driveway. It was renovated this summer, >> and re-installed without the weather station or the internal computer >> systems, since it was getting colder, and the reno work had already taken >> too long. It is now more difficult to add the items to the LFL, and to >> test them... >> We have had a LFL for about 7 years, with Arduino Nano's, solar power, >> batteries, and digital radio. The system has worked near perfectly all this >> time, summer and winter, snow, rain, wind... >> It is unfortunate I did not have this weather station outside this past >> week; temperatures down to about -20C, winds gusting to about 100 kph! my >> location is in southern Ontario, Canada. Some regions around us declared >> disaster emergencies! We were fortunate not to lose power... >> >> 2. Outputs: >> My testing has been done only with the I2C interface, and has worked very >> well. I will include test code below. I have checked that the analog >> output works okay, but I use only the I2C outputs for my application. >> >> 3. Wireless: >> I have used the NRF24L01 transceiver module at both remote and in-house >> ends, for data collection and some control, for years also. Again, has >> worked very well. A nice system to connect with Arduino Nano. Uses SPI >> interface. Have also built a NRF24L01 to Ethernet WiFi Gateway, using an >> ESP32 module, intended for connection to a Home Automation system (not >> configured yet). >> >> 4. Software: >> The library I used for testing is: >> https://github.com/RobTillaart/AS5600. >> I also made some use of the Seeed Studio Library: >> https://github.com/Seeed-Studio/Seeed_Arduino_AS5600 >> >> The simple test software I used (a modification of a SEEED studio test >> app) is attached as AS5600_MagDiag1.ino (open as simple text file, if you >> do not use the Arduino IDE for anything). Allows easy data capture / >> graphical display using the Arduino IDE Serial Monitor and Serial Plotter >> tools. >> >> 5. System: >> I see the PDF I included in an earlier post, chopped a couple of my >> pictures, when I modified it for smaller size... >> I have attached one of these correctly, and added another pic: >> 1 - the LFL just prior to renovations, showing general appearance, >> weather station sensors, solar panels... It is located near the road, with >> no connection to house power. Other features include Neopixels, internal >> LED lighting, door switches... >> 2 - the weather station sensors (temporarily fastened to a piece of wood >> for bench testing and painting), and electronics package. The electronics >> and batteries (3x AA NiMH) are mounted on a wooden panel that slides into >> the "attic" of the LFL. The Nanos are actually Arduino "Micros"; an >> ATMEGA386 pcb with no USB chip, to reduce power consumption. You can see >> an external TTL - USB interface connected to one of them, for program and >> test. Temperature and humidity sensors are also on this board. Weather >> data, switch states, solar charge, discharge and battery state are all sent >> periodically over the radio link. Local control of lighting uses the >> RF24L01 back channel. >> >> Hope this little summary is helpful... >> Tom >> >> >> >> >> >> >> On 12/26/2022 4:56 AM, hans wrote: >> >> Hello Tom, >> Delicious, a JAL project !! That is the great strength of Arduino, >> practical examples. >> It looks like my problem. Now my wind direction works with a Greats disc >> and light cells, but they are affected by the weather. >> . >> That's why my question. Do you use the analog output or the spi? Do you >> work wirelessly? And do you also have information for me about the program? >> Well, the risk if you give me an answer that I have many more questions >> I ordered a set with the magnet >> It's still fun. >> regards >> Hans >> >> Op maandag 26 december 2022 om 09:15:30 UTC+1 schreef Tom: >> >> (Resend to provide smaller attachment) >>> >> >>> >>> >>> -------- Forwarded Message -------- >>> Subject: Re: [jallib] AS5600 >>> Date: Sun, 25 Dec 2022 14:15:33 -0500 >>> From: Tom Crawford <tomc...@gmail.com> >>> Reply-To: tomc...@gmail.com >>> To: jal...@googlegroups.com >>> >>> Hello Hans, >>> Yes, I have some experience with it. >>> I needed to replace a failing set of reed switches in a weather vane. I >>> replaced them with an AS5600 sensor, and did some testing with it. >>> I have attached a PDF file from a presentation I did in September, that >>> may be of interest. The overall project was the refurbishing of our Little >>> Free Library. The weather vane discussion (mainly photos) is in the 2nd >>> half of the PDF, showing the old reed switch / I2C installation, and the >>> new AS5600 install inside the 3D printed mounting. The upgrade is not >>> outdoors yet, so not weather tested... >>> >>> Some things to be aware of: >>> - the rotating magnet and it's mount location are very critical. I >>> originally did not order the AS5600 (from Aliexpress) with magnets, since I >>> have a large collection of small salvaged magnets in my junk box. But only >>> 2 of those magnets had the correct orientation of magnetic field to >>> adequately operate the AS5600! See test graph for results; a proper >>> magnet would produce even better results. I have ordered additional >>> AS5600's for other uses, and included the proper magnets with that order. >>> >>> Tom >>> >> >>> >>> >>> On 12/25/2022 4:35 AM, hans wrote: >>> >>> Hey >>> I need a position sensor that provides a rotation of 360 degrees. I >>> found the AS5600. Does anyone have experience with this? >>> regards >>> Hans >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "jallib" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to jallib+un...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/jallib/cb4a9866-829f-46cb-90dc-2b3bf14ae59en%40googlegroups.com >>> <https://groups.google.com/d/msgid/jallib/cb4a9866-829f-46cb-90dc-2b3bf14ae59en%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> >>> >>> >>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >>> Virus-free.www.avast.com >>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >>> <#m_-3772727357748758446_m_-2430484676072060835_m_-5172031385688370383_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to jallib+un...@googlegroups.com. >> >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/jallib/0a123447-d3f5-44b8-8b34-5cce6d39d77dn%40googlegroups.com >> <https://groups.google.com/d/msgid/jallib/0a123447-d3f5-44b8-8b34-5cce6d39d77dn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> >> -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jallib+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/c7fc0cf0-1319-45e7-b939-dcb83c02cd91n%40googlegroups.com > <https://groups.google.com/d/msgid/jallib/c7fc0cf0-1319-45e7-b939-dcb83c02cd91n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "jallib" group. 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