Rfm9x 'flags' values Moderators: adafruit_support_bill, adafruit

[Rcayot]

Simple question,

What values can you set the 'flags' 4 bits to? 0-3 seems to work but other values, I am having trouble. Is it me or the flags values are limited?

Thanks in advance.

Roger

[jerryn]

Can you provide some examples of the problem?
It is a 4 bit value so anything form 0-15 should be OK.

[Rcayot]

Thanks Jerry.

I reworked the problem and now 1-4 works. I don't know what went wrong initially.

However, interestingly, when I used a flag of zero, the recieving program barfed all over the startup message when trying to process it, that is why I went to 1-4.

Thanks again.

Roger

[jerryn]

The issue with 0 sounds odd, I'll try to reproduce it.
Just curious, how are you setting the flags:
passing as an argument to rfm9x.send(....,flags=x)
or via the property "rfm9x.flags=x "

[Rcayot]

Using rfm9x.flags=x

Then recieve flag=packet[3]

Then if flag == to test.

The packets are data from a remote BME.280 from. Pico with rfm9x breakout, recieved by a RPI-4b with rfm9x bonnet.

I think the "startup message from node x" is sent by default with header perhaps. Is an easy workaround just not using a flag of zero.



Roger

[jerryn]

I have not been able to reproduce any problem setting the rfm9x.flags value to anything from 0 to 15.
Can you provide more information about the issue you are having. If you could post your transmit and receive code, that would be very helpful.