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  1. Home
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  3. NRF24L01+PA+LNA distance problem

NRF24L01+PA+LNA distance problem

Scheduled Pinned Locked Moved Troubleshooting
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  • G gloob

    Why don't you connect the NRF also directly to the battery?

    yd kimY Offline
    yd kimY Offline
    yd kim
    wrote on last edited by
    #21

    @gloob
    nRF module should not use over 3.6V and Li-Ion battery is 4.2V when it is full charged.

    G 1 Reply Last reply
    0
    • F Offline
      F Offline
      flopp
      wrote on last edited by
      #22

      Quick fix may be to add resend if Failed.

      See here

      https://forum.mysensors.org/topic/3355/count-car-starts/19

      1 Reply Last reply
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      • yd kimY yd kim

        @gloob
        nRF module should not use over 3.6V and Li-Ion battery is 4.2V when it is full charged.

        G Offline
        G Offline
        gloob
        wrote on last edited by
        #23

        @yd-kim said:

        @gloob
        nRF module should not use over 3.6V and Li-Ion battery is 4.2V when it is full charged.

        I thought you are also powering the Arduino directly from the battery over the 3.3V pin.

        yd kimY 1 Reply Last reply
        0
        • F fleinze

          Sometimes we get shitty modules from china:
          https://forum.mysensors.org/topic/1153/we-are-mostly-using-fake-nrf24l01-s-but-worse-fakes-are-emerging
          I made good experiance with these rather expensive ones:
          https://de.aliexpress.com/item/2pcs-RF2401F20-2-4G-high-integrated-RF-module-with-Nordic-s-RF-chip-nRF24L01-For-Free/32302870943.html
          But even with these I had to be very careful about antenna placement

          yd kimY Offline
          yd kimY Offline
          yd kim
          wrote on last edited by
          #24

          @fleinze

          I keep reading the article.. interesting
          The module which on the link is too expensive for my project;;

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          • G gloob

            @yd-kim said:

            @gloob
            nRF module should not use over 3.6V and Li-Ion battery is 4.2V when it is full charged.

            I thought you are also powering the Arduino directly from the battery over the 3.3V pin.

            yd kimY Offline
            yd kimY Offline
            yd kim
            wrote on last edited by
            #25

            @gloob
            Arduino doesn't matter up to 5V so I don't mind for arduino.
            If I feed same power to arduino, I need bigger LDO and also less efficiency.

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