nrf52840 esb send and receive bidirectional with nrf24l01 on other end

RE: nrf52840 esb send and receive bidirectional with nrf24l01 on other end

berkutta — Fri, 22 Apr 2022 14:23:20 GMT

Got it now working to send Packets "Ping Pong" style between nRF52840 and nRF24L01 (ESP32 SOC - MIRF SW). There was a missing Nrf24_setTADDR on the ESP32 side.

After that it's just a question of creating a loop like following to send packets from the nRF5 which can be answered by the nRF24L01:

    while(1) {
        tx_payload.noack = false;
        err_code = nrf_esb_write_payload(&tx_payload);
        VERIFY_SUCCESS(err_code);

        tx_payload.data[0]++;

        nrf_delay_ms(10);

        nrf_esb_start_rx();

        nrf_delay_ms(100);

        nrf_esb_stop_rx();
    }

RE: nrf52840 esb send and receive bidirectional with nrf24l01 on other end

Kenneth — Thu, 21 Apr 2022 08:25:16 GMT

I do believe that the \examples\proprietary_rf\esb_ptx show this in the nRF5 SDK, look at the handling of NRF_ESB_EVENT_RX_RECEIVED in the nrf_esb_event_handler() callback.

Kenneth

RE: nrf52840 esb send and receive bidirectional with nrf24l01 on other end

berkutta — Wed, 20 Apr 2022 14:49:55 GMT

Thanks for the Answer. Sending Data back and forth between nRF5 SDK and nRF24L01 with MIRF works. But just unidirectional.

Where can I find a nRF5 SDK Example or Documentation on how to receive ESB data with nRF5 SDK after Transmitting data?

RE: nrf52840 esb send and receive bidirectional with nrf24l01 on other end

Kenneth — Wed, 20 Apr 2022 13:48:54 GMT

Do you know the radio configuration used by the "MIRF library"? E.g. channel, address, dynamic payload size or not etc?

In general you can find that the nRF5 SDK are backwards compatible with the nRFgo SDK examples for the nRF24-series provided the following:
https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/esb_users_guide.html#esb_backwards

However it is very likely that some of the radio configuration on the nRF24L01 is different in this case.

Kenneth