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DFR0768 Does not work

Unread postPosted:Fri Apr 23, 2021 8:31 am
by salvatore.allegretti
purchased 2 DFR0768 modules, I followed the wiki for the product, made the necessary wiring and copied the relative code, but the only result I get on the serial monitor is: "Init failed, please check the wire connection!". Of course I have checked the wiring over and over again and they are correct. Has anyone had the same problems as me?

Re: DFR0768 Does not work

Unread postPosted:Tue Apr 27, 2021 2:36 am
by 347945801
Can you provide wiring pictures?
Can the USB flash drive be ejected when the board is connected to the computer?
Can I press the button after copying music to play normally?

Re: DFR0768 Does not work

Unread postPosted:Tue Apr 27, 2021 2:06 pm
by salvatore.allegretti
Thanks for your interest. The wiring is the same as on the product wiki, but instead of using arduino uno I used arduino mega.
The drive can be ejected when it is connected to the PC.
If I press the button I can hear the music

Re: DFR0768 Does not work

Unread postPosted:Wed May 05, 2021 6:13 am
by rochellealexa64
This is the exact same issue I've seen on one of my modules. What happens is that for whatever reason, after issuing GetPacketType command (0x11), SX1268 responds with 0xAA 0xFF. The last byte - 0xFF - is pure nonsense, it should be either 0x00 (if FSK modem is active) or 0x01 (if LoRa modem is active).

Wait for BUSY ...
CMD 11
DATR 0 AA 0 FF
This is what the correct exchange looks like:

Wait for BUSY ...
CMD 11
DATR 0 A2 0 1

Re: DFR0768 Does not work

Unread postPosted:Thu May 06, 2021 6:46 am
by salvatore.allegretti
Thanks for the reply, but what you are pointing to me as a solution I am not able to apply. I needed to work with the module at a higher level language and not pass strings in hex code

Re: DFR0768 Does not work

Unread postPosted:Fri May 07, 2021 7:32 am
by 347945801
I re-examined your question, and I think your problem is that the soft serial port cannot communicate. You need to check whether the soft serial port is connected reversely. I don't think there will be any problems with the product and software.