nRF52832 Transceiver Example?

RE: nRF52832 Transceiver Example?

ovrebekk — Thu, 25 Apr 2019 13:46:23 GMT

Glad to hear you figured it out Bob.

The best of luck with your project!

RE: nRF52832 Transceiver Example?

rshankle — Wed, 24 Apr 2019 19:24:10 GMT

I got it working.

Thanks. The trick was to close esb and reopen in TX mode, transmit, wait for tx (success or fail) then close and reopen back in RX mode and continue on.

RE: nRF52832 Transceiver Example?

rshankle — Wed, 24 Apr 2019 13:34:05 GMT

Torbjorn,

I don't need an ACK, actually I have it setup to run without sending back and ack so the transmitting device can immediately go back to sleep.

I'm not trying to send the message BACK, but rather send it FORWARD. Basically a range extender. The remote device can't transmit to the base, but if I put a device between the remote and base, which can see both devices would allow me to extend the range.

Summary Remote can't reach Base, but it can reach Repeater. Repeater will send message to Base.

Does the example you mention use the nRF52 device? I'll go check it out.

thanks,

Bob

RE: nRF52832 Transceiver Example?

ovrebekk — Wed, 24 Apr 2019 13:26:35 GMT

Hi Bob

Sorry for the slow response. With the Easter holidays ongoing here in Norway we have been severely understaffed, but now we're back in business ;)

Stupid question, but why would you want to send exactly the same message back?

The idea of ESB is that the PRX will send an ACK automatically, which by default is only an empty packet sent back to the same address.

There is an ACK payload feature allowing you to embed a payload to the ACK, but you need to prepare the data before the packet is received on the PRX side, which means you can't prepare an ACK payload immediately after receiving a packet, and have it included in the ACK.
A workaround to this issue is to send two packets from the PTX, allowing you to prepare the ACK payload after the first packet, and have it sent back after the second packet.

It is possible to switch the entire library from PRX to PRX mode if you want to do a more manual ACK, but it requires a bit more work since you need to disable, reconfigure and enable the library for every switch.

For an example of this you could have a look at this example I wrote a while back, which implements a simple mesh like protocol where all nodes are in PRX mode most of the time, and only switch to PTX mode when they want to send something.

Best regards
Torbjørn

RE: nRF52832 Transceiver Example?

rshankle — Tue, 23 Apr 2019 16:59:12 GMT

I have it so close to working but in nrf_esb.c -> nrf_esb_write_payload, where the breakpoint is above, m_nrf_esb_mainstate never seems to reach "NRF_ESB_STATE_IDLE" )

I even tried adding a while(!nrf_esb_is_idle() ) {} in the main.c program and then make the function call but it never becomes idle.

thanks for any pointers,

Bob

RE: nRF52832 Transceiver Example?

rshankle — Thu, 18 Apr 2019 15:36:30 GMT

ping..... any thoughts on this?

thanks,

Bob