Has anyone been able to get Ack working on this? I just got them recently and found this post but can't seem to find any datasheet or examples. Thanks
EDIT: just after posting this I figured it out, using the TMRh20 Library the ackpayload will work but enabling DynamicAck() will break it. Not sure why but for anyone using This example just comment out the
radio.enableDynamicAck(); portion and it should work fine.
@alowhum nano bootloaders have changed recently. They now use the same one as Uno, used to be an older version. I too struggled with this at first but now realise that, if you use a recent ARduino IDE (eg 1.8.8) and select 'nano' as the device, you can then further select 'processor' and have a choice of ATmega 168 and two ATmega368, one of which is 'old bootloader'. Earlier versions of the IDE will always be 'old bootloader'. So I don't know if these boards are to the new standard (and you're trying to use them as the old ones) or the old standard (and you haven't selected that in the IDE) but you'll find the same thing with some ordinary nanos too.
I got this to work using the new bootloader, so I'm assuming this is the one to use.