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    jerome83136

    @jerome83136

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    Posts made by jerome83136

    • RE: Don't know what to use

      Hello,
      Anybody here to help me on this blocking point?
      Thank you
      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: SoftwareSerial, how do I convert those projects to use the hardware serial on the M5?

      Hello,

      I'm also trying to make the same RFID reader work with my ExtPort by using the port C and UART

      But I cannot get any value from the reader.
      Can somebody help me in this ?

      Here are the details of my setup.

      Thank you very much
      Regards

      posted in General
      J
      jerome83136
    • RE: Don't know what to use

      Hi guys,

      New problem here: I'm unable to use this RFID reader from Seeed studio

      The reader is able to communicate by serial (9600 baudrate, 8 data bits, 1 stop bit, and no verify bit)

      I connected it with my Ext port Blue port PortC (stacked with my M5 Core Basic)

      • Reader Yellow wire (TX) --> Ext port (Port C) / PIN13
      • Reader White wire (RX) --> Ext port (Port C) / PIN14

      On UI Flow I tried this:

      0_1679067565637_9b0cde45-1a62-4fe4-866f-a0a6c3ccfc52-image.png

      When I put an RFID tag on the reader; a red led seems to indicate it detects the tag; but I get nothing printed on my M5 Core Basic screen.

      What did I wong ?

      Thank you for your help

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      Hello all,

      Last part done (single power supply for M5 core + DC motor)
      I was also able to remove the PaHub by using the ExtPort (Port D). I had to change the dip switch value to:

      • Port D-1[2] = ON (to use GPIO22)
      • Port D-2[2] = ON (to use GPIO21)

      I then had to change the TOF module's port config in UIFlow to use the Port D:
      0_1678466335229_c91cfd3f-7455-44c5-bacd-6b80446df4c2-image.png

      Final diagram:
      0_1678466025476_23c67135-ad74-4585-9038-6379f178683c-image.png

      NB: DC(12v) to USB(5v) converter link

      Now let's get physcal parts printed and test it !

      Best regards

      posted in FAQS
      J
      jerome83136
    • Scales kit reports unstable weight

      Hi,

      I'm using M5 scales kit for a pet dispenser project.

      When I print the weight on the screen of my M5 core basic; it is not stable.
      I mean that the reported weight is displaying changing values over time.
      I reset the scales kit (so it shows "0") and I don't touch or move it for several minutes and I can see the weight value is changing over time.

      What did I miss ?
      At the moment I didn't put a cover plate on top of the scales kit. Can it be the reason ?

      Thank you for your help.

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      Hi all,

      Another report here.

      Almost everything is ready.
      I'm quite sure the RFID2 reader won't do the job because of its short reading range; let's try and improve if required.
      I will certainly have to give this reader a try. (already ordered)

      1 question I had while testing: TOF and RFID2 seems to need Ports A or E. But Port E never worked (the unit is seen as "not connected" by the Core); forcing me to use a PaHub which is a pity because I have plenty of available ports with the ExtPort extension.
      Someone able to help me understanding why ? (If I could use port E; I could completely remove the PaHub)

      Here is the current setup:

      0_1678322286834_643f4d48-949f-493f-a645-6ab5b9b233e5-image.png

      Last thing to do to complete the prototype: get a 12v --> 5V USB connector in order to power the M5 Core + 12v DC motor with a single source.

      Here is a simple UIFlow to check every component works correctly:
      0_1678322444056_88f378cd-ffb9-49e4-ae76-58ec1ab68f26-image.png

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      Hi,

      I finally got the relay working with M5 Core Basic !
      I think my mistake was to power the relay with 5v rather than 3.3v

      Here is my wiring:

      0_1678303871852_e3effaca-5d50-4aad-8ac3-443c74b7346f-image.png

      And here is the example UIFlow that works for me:

      0_1678303823556_4a5396f9-008d-4831-9ef2-9a8450709bfe-image.png

      Now I need to find a way to power the M5 Core Basic by using a DC 12V --> USB 5V connector and connect it to the DC 12V power supply I already use.

      Next step will be the hardest: understanding how PaHub works to interconnect the M5 Core Basic with:

      • RFID reader
      • M5 Scales kit
      • M5 Ultrasonic Distance Unit

      I will report progress here

      Thank you again for your help

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      Hello,

      Thank you for your feedback.

      As I'm quite new on this kind of stuff (using pins to interact with an external component); I need some tips :)

      When I do this on UIFlow:

      0_1678191762463_6e270bbe-7ab0-4684-beca-fb73b770b123-image.png

      I understand it activates the pin n°2 (LOW), when the "switch0" is activated. Am I right ?

      How can I identify the pin n°2 on my M5 Core basic with a base core bottom ?

      I think I need some documentation/tutorial to understand the correspondance between the pins used into UIFlow and the the pinmap on M5 Core Basic. Can I find this somewhere ?

      Thank you for your help

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      Hello all,

      Some news here.

      I ordered an RFID reader and am still waiting for it to be delivered. So, I will share some news about this part later.

      For the 12v DC motor control; I have some troubles.
      I ordered a GoPlus2; but it tidn't feet because even if it has a 12v input; it can't deliver 12v output to my DC motor.

      So I switched to another option: using a 5v relay to power the 12v DC motor.

      The problem I have is: how to use the M5 Core to control the 5v relay ?

      I tried this example but I'm just unable to understand what are the pins used by this guy on the M5 core ?
      The guy uses the pins 2, 27, 32 and 13; but where are these pins on the M5 core basic I own ?
      Do I have to remove the M5 core bottom (received with the M5 core basic) ?

      I don't really understad the pin map of the M5 core basic. Is there some reference somewhere for wiring ? And is there a description about the colours used on the M5 core basic product sheet pinmap section ?
      Or some example telling "if you are using digitalWrite(2, 0) on UIFlow; you have to use this specific pin on the core"

      Thank you for your feedback

      Best regards

      posted in FAQS
      J
      jerome83136
    • RE: Don't know what to use

      hi @wsanders
      If I can drive the motor with tha Atom and H-driver; that's fine for me.
      I plan to extend it with a PaHub in order to get additional grove ports and connect the Scales kit + RFID2 reader.
      But I wonder if it will work because I'm not sure M5 Scales kit is using I2C

      I choosed the RFID2 reader because of its price (as you said: the UHF reader is quite expensive)

      I see 2 options to solve the range issue:

      • Using 3 RFID2 readers on each side of my object (see red arrows on enclosed picture)
      • Try to extend the RFID2 range with a custom antenna with magnetic wire, around the food dispenser
      • Use this cheap 125KHz RFID reader and make a custom antenna with magnetic wire, around the food dispenser. But can I make it talk to M5 stuff ? (it uses a grove connection and output format is Uart and Wiegand)

      Do you think it could work ?
      Thank you for your feedback

      Best regards

      posted in FAQS
      J
      jerome83136