nRF52 <-> 24L01+ ESB sample code

[Steve H]

Does anyone have any sample code for two-way ESB comms between an nRF52 and nRF24L01+ being controlled by an Arduino (or similar), please?

I can get two nRF52s to talk to each other, and I can get two 24L01+s to talk to each other, but I just can't get the comms working between the different modules.

[Håkon Alseth]

Hi Steve,

Q1: Could you try using an RF address which is equal regardless of endianess, like E7 E7 E7 E7 E7?

Q2: If the above does not work, could you post your settings?

Cheers, Håkon

[Håkon Alseth]

Hi Steve,

The nRF52 does not have the 250 kBit on-air datarate mode. As shown in the nrf52_bitfields.h: RADIO_MODE_MODE_Nrf_250Kbit (2UL) // Deprecated enumerator - 250 kbit/s Nordic proprietary radio mode

Could you try with 2 MBit and see if this works better? If you're using noack with the nRF24L01+, then the selective_ack must be set on the nRF5x-side. Example configuration:

`nrf_esb_config_t nrf_esb_config         = NRF_ESB_DEFAULT_CONFIG;

nrf_esb_config.protocol                 = NRF_ESB_PROTOCOL_ESB_DPL;

nrf_esb_config.retransmit_delay         = 600;

nrf_esb_config.bitrate                  = NRF_ESB_BITRATE_2MBPS;

nrf_esb_config.event_handler            = nrf_esb_event_handler;

nrf_esb_config.mode                     = NRF_ESB_MODE_PTX;

nrf_esb_config.selective_auto_ack       = true;`

Cheers, Håkon