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  • Case ID: 289042
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nRF24L01

user116137

Dear All

I used nRF24L01 antennas with external antenna for data reception and transmission at different speeds (256KBPS, 1MBPS and 2MBPS) for a while everything worked but after several hours of operation the antennas no longer work, they seem burned out. I tried to change the position of the antennas but to no avail, they always seem burned out. I always powered the antennas at 3V. The power supply comes from a source stabilized by 3V linear stabilizers. Do you have any idea how to solve the problem? Consider that I bought 30 antennas, 15 of which burned out.

Kindest Regards

Salvo

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  • 0

    The nRF24L01+ can handle 3.6 V so 3.0 V shouldn't cause any damage. How does the module look like and how do you connect it and to what?

  • 0 in reply to ketiljo

    the module is connected to a stm32f303 discovery board obviously in SPI by directly connecting the CLK, MISO, MOSI, CE, CSN pins to the respective antenna pins, so I have not inserted for example additional pullup resistors on CLK or capacitors between the vcc and the gnd

    The pinout is

    STM32                     nRF24L01

    PA5 CLK     --------> CLK

    PA6 MISO   --------> MISO

    PA7 MOSI   --------> MOSI

    PE7 CE       --------> CE

    PE8 CSN    --------> CSN

    the gain of the antenna is set to 0 db

    This is one module.

    The other module is connected to an Arduino Nano using the SPI of the NANO

    The pinout is

    NANO                 nRF24L01

    D13        --------> CLK

    D12        --------> MISO

    D11        --------> MOSI

    D7          --------> CE

    D8          --------> CSN

    the gain of the antenna is set to 0 db

  • 0 in reply to user116137

    The nRF24L01+ inputs are 5 V tolerant so even if the Arduino is powered with 5 V, it will not damage the device. 


    What kind of modules are you using and where did you get them?

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