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  1. R

    Has anyone used nRF24L01+ modules for multi-node Arduino projects?

    I've run a few multi-node setups with the nRF24L01+ and can share what I found. On reliability: MultiCeiver itself is solid — the six pipes are logical addresses, all sharing the same 2.4 GHz carrier, exactly as rainyliveshere said. The real bottleneck in practice is packet collisions when...
  2. R

    Arduino Nano built in RGB LEDs won't turn off

    Most likely: the RGB LEDs are active-low, so you must set the pins to OUTPUT and write HIGH to turn them off. Leaving them unconfigured or writing LOW keeps them on. Check your board's pin numbers (Nano 33 BLE: R=22/G=23/B=24; Nano 33 IoT: R=25/26/27) — classic Nano (328P) has no on-board RGB.
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