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    FabioIT

    @FabioIT

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    Best posts made by FabioIT

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    Latest posts made by FabioIT

    • Low voltage notify in Raspberry on UNipi 1.1

      Hello
      I tried a lot of power supply but there is always the same problems, with the unipi power supply or other with 3 A , all are stable 5V.

      I used as test RPI 3 B and 4. All with bolt or baloon.

      The unipi 1.1 jumers are all on the rifht side (factory default) so I use power ony by Unipi power supply shipped with the board) in the power hole of Unipi..

      Have I to supply the Raspberry also with other power supply? I think is not good to do ..may be some currents goes from 2 cirtuits and may damage the RPI...

      posted in UniPi 1 - HW Q&A
      F
      FabioIT
    • Analog output Hardware problem

      Hello
      I read the guide https://kb.unipi.technology/en:automation:02-glossary:analog-outputs-hidden
      to use my AO in my Unipi1.1
      I'm sure i'm setting the output (AO01) by the onboard 12 V as described on tutorial and I can read on AI 1,0000 V in all range of 0-100% of the AO output by software.
      Also if I try to trimmer the voltage it has't any effect.
      If I detach the wire AOG AI1+ I can read 10,000V on AI1 .. what means?

      Thank you for your support

      posted in UniPi 1 - First Generation
      F
      FabioIT
    • How to measure PT100 on AI clamps

      Hello I have Unipi 1.1 board and as written here https://kb.unipi.technology/en:automation:02-glossary:analog-inputs-hidden#measuring_resistance
      I would try to use PT100 on AI , what resistance I need ? may be a 10k is good?
      Thanks.

      posted in UniPi 1 - HW Q&A
      F
      FabioIT
    • RE: Installation manual Node-RED (use at your own risk)

      Hello I have istalled the Node red image on Unipi 1.1 but no desktop...only command line. How to RU or install the PI desktop please??

      posted in Node-RED
      F
      FabioIT
    • Measure 2 Temperature and 2 Humidity

      Hello ! I have unipi 1.1 and I need to measure temperature and Humidity separately or in one probe.

      I want to use the 2 AI inpusts channels (they misure only 0-10V) ..it's diffcult to find converters from PT100 or NTC to 0 - 10V .... what do you suggest me?

      I want know if there is a SPI port in Unipi 1.1 to use SPI devices, for example Adafruit:
      SPI Logic pins: SCK - This is the SPI Clock pin, its an input to the chip SDO - this is the Serial Data Out / Master In Slave Out pin, for data sent from the MAX31865 to your processor SDI - this is the Serial Data In / Master Out Slave In pin, for data sent from your processor to the MAX31865 CS - this is the Chip Select pin, drop it low to start an SPI transaction. Its an input to the chip

      thank you!

      posted in UniPi 1 - First Generation
      F
      FabioIT
    • RTC update in Unipi 1.1

      Hello!
      how to Set the clock via libraries as DTUtils OR SysTimeRtcGet/SysTimeRtcSet functions?

      I can do it but the raspy is connceted to internet and timezone is set automatically by NTP.
      So I can't set a strange clock (i don't know at the moment the time zone where will be installed so I can't set in the raspy).

      There is a way to set the timezone from codesys? I tired but doesn't work.

      Thank you very much!

      posted in UniPi 1 - First Generation
      F
      FabioIT
    • RE: AI doesn't work.. the unipi device is running

      Hello I tried to do a clean all and now is working.

      posted in CODESYS
      F
      FabioIT
    • AI doesn't work.. the unipi device is running

      Hello I followed the 2 pdf of configuration
      All other IO are working well.

      1-
      I m using 2 REAL variabiles ana1 , ana2
      I applied 5 V dc between AI+ and AI-
      The AI1 and AI2 show always 0 volts...

      Why ?

      0_1584646740752_508e8701-9667-42de-b6ee-e405fc4e7ad1-image.png

      Here the settings for cycle..
      0_1584646999093_8cdb7ccd-90cb-4205-870c-c0b8ecf0be62-image.png

      2- How to enable de DI 13 and 14? Have I to change some dip switch? or SW?
      Thanks

      posted in CODESYS
      F
      FabioIT