tests/driver_nrf24l01p_lowlevel: add note about compatilibity

tests/driver_nrf24l01p_lowlevel/README.md

@@ -107,3 +107,12 @@ nrf24l01p_rx_handler got a message: Received packet.
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 ```
+
+## Compatibility with SI24R1 or other NRF24l01p clones
+CRC and Auto-ACK should be disabled.
+Use
+```
+nrf24l01p_disable_all_auto_ack(&nrf24l01p_0);
+nrf24l01p_disable_crc(&nrf24l01p_0);
+```
+after `nrf24l01p_init(&nrf24l01p_0, SPI_PORT, CE_PIN, CS_PIN, IRQ_PIN) < 0)`