nRF52x & nRF54x Enhanced ShockBurst (ESB) driver with an RF24-compatible API (Arduino / PlatformIO).

This library targets nRF52 & nRF54 devices (ex: nRF52840 or nRF54l15) and is designed to feel familiar to users of the RF24 library (similar function names and workflows).

1. There is only a single-layer buffer (not a 3-layer FIFO like the nRF24L01).
2. Enums like RF24_PA_MAX become NRF_PA_MAX (etc).
3. Porting RF24 sketches:
   • use #include <nrf_to_nrf.h> instead of RF24.h
   • create the radio as nrf_to_nrf radio; (no CE/CS pins like RF24 modules)
   • update enums (note #2)
   • higher layer libs use the RF52 prefix: RF52Network, RF52Mesh, etc.

The higher layer libraries (RF24Network/RF24Mesh/RF24Ethernet) have been updated (v2.x) to accommodate this driver.

• Arduino IDE
• PlatformIO (framework = arduino)

Arduino IDE → Library Manager → search for nrf_to_nrf → Install

Add to platformio.ini:

[env:nrf52]
platform = nordicnrf52
board = <your_board_id>
framework = arduino
monitor_speed = 115200

lib_deps =
  https://github.com/TMRh20/nrf_to_nrf.git

Use the provided examples:

• RF24-style:

  • Receiver (RX): examples/RF24/GettingStarted/GettingStarted.ino
  • Transmitter (TX): examples/RF24/GettingStarted/GettingStarted.ino (same sketch; select role via Serial)

• RF24Network “Hello World”:

  • Receiver (RX): examples/RF24Network/helloworld_rx/helloworld_rx.ino
  • Transmitter (TX): examples/RF24Network/helloworld_tx/helloworld_tx.ino

• Encryption examples:

  • RF24Network RX encryption: examples/RF24Network/helloworld_rxEncryption/helloworld_rxEncryption.ino
  • RF24Network TX encryption: examples/RF24Network/helloworld_txEncryption/helloworld_txEncryption.ino
  • RF24 GettingStarted encryption: examples/RF24/GettingStartedEncryption/GettingStartedEncryption.ino

Address note (RF24-compatible): for 5-byte addresses, the first byte is the identifier/prefix byte (eg: {'1','N','O','D','E'}).

There are examples under examples/ showing encryption usage (setting a 16-byte key, enabling encryption, and increasing max payload sizes):

• radio.setKey(myKey);
• radio.enableEncryption = true;
• radio.enableDynamicPayloads(123); (important so encryption overhead doesn’t reduce usable payload)

• No RX packets: confirm both sides use the same channel and addresses; start RX with startListening() and TX with stopListening().
• Short/garbled messages: ensure you’re reading/writing the same payload length; consider enabling dynamic payloads if your lengths vary.