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    Best posts made by yd kim

    • NRF24L01+PA+LNA distance problem

      Hi All,

      My project has 1 gateway + 5 node with temperature sensor and it is installed in orchard.
      All node is within 20meter from gateway but seems there are a lot of packet loss.
      I bought module from aliexpress which is mysensors link (https://www.aliexpress.com/item/1sets-Special-promotions-1100-meter-long-distance-NRF24L01-PA-LNA-wireless-modules-with-antenna/32341792715.html)

      Communication was fine in the office but when I install in the orchard it loose some data.

      I did try a lot of things on the web.
      Here is the list I have been try to solve the problem but no luck yet.

      1. 800mA 3.3V LDO saperate Power to the module
      2. 2x 10uF LDO in/out
      3. 100UF Al Cap, 2x 10UF ceramic Capacitor on base board
      4. 100uF , 2x 10uf On the module
      5. warp the module with tinfoil
      6. bigger antenna ( a little bit improved)
      7. 3M corded antenaa ( no difference)
      8. change mysensors config to MY_RF24_PA_LEVEL RF24_PA_MAX ( no difference)

      Is there any other option?
      It's really strange, the module specification is 1km but even not working properly within 20meter..
      I don't think there is interference because it is installed rural area..

      Sorry for bad English;;

      posted in Troubleshooting
      yd kim
      yd kim