Hi,
I'm using devices I haven't developed but on the which I'd like to add functionalities.
These devices are working as a small network using 2.4Ghz Nordic ESB protocol.
The communication between these devices is based upon nRF24 chips.
I'd like to interact with this network of devices to add an extended remote control from a smartphone or a computer.
nRF52840 USB dongle seemed perfect to me :
- low price
- USB connectivity
- BlueTooth capability
- nRF24 compatibility
- no need to design/build a board
But I'm facing a problem.
The devices I'd like to communicate with are using the ESB protocol at 250kbit/s.
By reading the doc, I saw that the nRF52840 chip was only supporting ESB protocol at 1 or 2 Mbit/s.
However, by digging more, I did found these articles/posts talking about using ESB on nRF52840 with as slow data rate as 125kbit/s :
https://devzone.nordicsemi.com/f/nordic-q-a/43404/how-can-i-use-a-long-range-mode-in-the-proprietary-mode-in-the-nrf52840
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf52840-long-range-demo
The only constraint seems to be the absence of ACK. But I don't need it because the other devices aren't using it.
So, the questions are :
- do I have any chance to be able to establish a communication between a nRF52840 and a nRF24 chip using ESB at 250kbit/s without ACK ?
- do you now any other ready to use device having a real nRF24 compatibility + USB + Bluetooth + low price (nRF51 dongle could be a good candidate but... 5 times the price of the nRF52840 dongle)
Thanks in advance for your answers !
