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  3. CE line on sensor node?

CE line on sensor node?

Scheduled Pinned Locked Moved Troubleshooting
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  • aquaproA aquapro

    hello,
    very good project!
    I currently testing version 1.4b1 and I have a problem. Only if I disconnect the CE line on the sensor, the values ​​are transferred.
    If the CE line is connected, only one part will be sent, see Figure 1, the LED on the sensor remains on. As soon as I disconnect CE line, all values ​​are not sent are transmitted (Figure 2) and the LED goes out and lights up briefly in the next transmission.

    Does anyone have an idea?

    greeting

    aqua
    1_4_test_1.PNG
    Figure1

    1_4_test_1b.PNG
    Figure 2

    DammeD Offline
    DammeD Offline
    Damme
    Code Contributor
    wrote on last edited by Damme
    #14

    @aquapro Hmmmm
    The chip on your looks like a blob more than this; You might have gotten a chinese ripoff .. I dont remember the chip name... Hmmmm hard to see!

    edit:

    maybe : http://forum.mysensors.org/topic/300/rfm73-experience/ ?
    inverted CE?

    nrf24L01-black.jpg

    YveauxY RJ_MakeR 2 Replies Last reply
    0
    • DammeD Damme

      @aquapro Hmmmm
      The chip on your looks like a blob more than this; You might have gotten a chinese ripoff .. I dont remember the chip name... Hmmmm hard to see!

      edit:

      maybe : http://forum.mysensors.org/topic/300/rfm73-experience/ ?
      inverted CE?

      nrf24L01-black.jpg

      YveauxY Offline
      YveauxY Offline
      Yveaux
      Mod
      wrote on last edited by Yveaux
      #15

      @Damme Sharp observation, dude!

      Have a look at these: http://www.aliexpress.com/item/Free-shipping-10pcs-lot-NRF24L01-wireless-data-transmission-module-NRF24L01-wireless-module/1996222121.html

      Claimed to be nRF24L01+!!

      http://yveaux.blogspot.nl

      1 Reply Last reply
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      • DammeD Damme

        @aquapro Hmmmm
        The chip on your looks like a blob more than this; You might have gotten a chinese ripoff .. I dont remember the chip name... Hmmmm hard to see!

        edit:

        maybe : http://forum.mysensors.org/topic/300/rfm73-experience/ ?
        inverted CE?

        nrf24L01-black.jpg

        RJ_MakeR Offline
        RJ_MakeR Offline
        RJ_Make
        Hero Member
        wrote on last edited by
        #16

        @Damme
        Nice Catch Indeed!

        RJ_Make

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        • YveauxY Yveaux

          @aquapro The MySensors site (http://www.mysensors.org/build/connect_radio) gives the following wiring:

          Arduino     nRF24
          9           CE
          10          CSN
          13          SCK
          11          MOSI
          12          MISO
          2           IRQ
          

          These are the defaults for the library. CE & CSN you can adapt through the constructor of MySensor (did you do that?)

          Looking at the pictures I have a hard time figuring out the connections for pins 8..12, while these are just the interesting part...

          aquaproA Offline
          aquaproA Offline
          aquapro
          wrote on last edited by aquapro
          #17

          @Yveaux yes I checked wiring with (http://www.mysensors.org/build/connect_radio)
          more detail picture, hope so. (bad light)
          IMAG0491.jpg

          IMAG0493.jpg

          @Damme
          Chip is covered.
          IMAG0494.jpg

          1 Reply Last reply
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          • YveauxY Yveaux

            @aquapro The MySensors site (http://www.mysensors.org/build/connect_radio) gives the following wiring:

            Arduino     nRF24
            9           CE
            10          CSN
            13          SCK
            11          MOSI
            12          MISO
            2           IRQ
            

            These are the defaults for the library. CE & CSN you can adapt through the constructor of MySensor (did you do that?)

            Looking at the pictures I have a hard time figuring out the connections for pins 8..12, while these are just the interesting part...

            aquaproA Offline
            aquaproA Offline
            aquapro
            wrote on last edited by
            #18

            @Yveaux

            Looking at the pictures I have a hard time figuring out the connections for pins 8..12, while these are just the interesting part...

            Pin 8?

            YveauxY DammeD 2 Replies Last reply
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            • aquaproA aquapro

              @Yveaux

              Looking at the pictures I have a hard time figuring out the connections for pins 8..12, while these are just the interesting part...

              Pin 8?

              YveauxY Offline
              YveauxY Offline
              Yveaux
              Mod
              wrote on last edited by
              #19

              @aquapro said:

              Pin 8?

              It looked like you could have a connection to pin 8, but apparently (in the better pictures) you haven't...

              http://yveaux.blogspot.nl

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              • aquaproA aquapro

                @Yveaux

                Looking at the pictures I have a hard time figuring out the connections for pins 8..12, while these are just the interesting part...

                Pin 8?

                DammeD Offline
                DammeD Offline
                Damme
                Code Contributor
                wrote on last edited by
                #20

                @aquapro I dont think you got a nordic semiconductor nrf24l01, What I can find they are only in QFN package.
                http://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24L01

                So the specs on that chip may be different. Maybe CE is inverted?

                1 Reply Last reply
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                • aquaproA Offline
                  aquaproA Offline
                  aquapro
                  wrote on last edited by
                  #21

                  hm ... if CE inverted, ping sample should not work?! CE must switch between hight and low for TX and RX right? But Ping sample send and receive works.

                  1 Reply Last reply
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                  • aquaproA Offline
                    aquaproA Offline
                    aquapro
                    wrote on last edited by
                    #22

                    Hi,

                    I have bought the new modules (right on pic), which operate without modification. I simply swapped and all is fine.
                    What do I do with the other. How can I test inverted.

                    new.jpg

                    hekH 1 Reply Last reply
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                    • aquaproA aquapro

                      Hi,

                      I have bought the new modules (right on pic), which operate without modification. I simply swapped and all is fine.
                      What do I do with the other. How can I test inverted.

                      new.jpg

                      hekH Offline
                      hekH Offline
                      hek
                      Admin
                      wrote on last edited by
                      #23

                      @aquapro

                      I hope you didn't get the left one when purchasing through the links in the MySensors "store"?

                      1 Reply Last reply
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                      • aquaproA Offline
                        aquaproA Offline
                        aquapro
                        wrote on last edited by
                        #24

                        I got the left one from other eb..-"store".

                        1 Reply Last reply
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                        • aquaproA Offline
                          aquaproA Offline
                          aquapro
                          wrote on last edited by
                          #25

                          The left one works with MySensor-Coding, but only with disconnected CE line.

                          1 Reply Last reply
                          0
                          • Z Offline
                            Z Offline
                            Zeph
                            Hero Member
                            wrote on last edited by
                            #26

                            If it truly works correctly with CE disconnected, that could be an advantage when there is a shortage of pins (eg: 8 pin ATTiny).

                            Have you achieved full operation without CE on the old modules?

                            And did you leave CE floating or tie it high?

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                            • aquaproA Offline
                              aquaproA Offline
                              aquapro
                              wrote on last edited by
                              #27

                              I still see no difference when CE is disconnected.Only it as work at all.

                              1 Reply Last reply
                              0
                              • Z Offline
                                Z Offline
                                Zeph
                                Hero Member
                                wrote on last edited by
                                #28

                                What vendor did you use to get the "no CE needed" variants? That could be useful to test.

                                I'm assuming that the nRF24L01+ doesn't work without CE connected, right?

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                                • aquaproA Offline
                                  aquaproA Offline
                                  aquapro
                                  wrote on last edited by
                                  #29

                                  Eb.. no. 360917673897 vendor "liuddndd2009"

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