I just got my 3DR 433 mhz kit. But one of the radios seems to have a problem.
When i plug it into my computer using tha FTDI cable the green light stays on and the red one blinks once about every scond. The terminal says:
The hardware seems ok. I was able to get it into bootloader mode by shorting the CTS and ground. firmware was then updated sucessfully. My other "Air"-radio is fine and i can upgrade firmware in "AT" mode and configure it with APM planner.
APM planner 1.1.81 mav 0.9
Is there a general way to unbrick these radios?
Here at 3DR we've seen one radio output the same panic message as yours, and from trying to unbrick that one I can say that reflashing the firmware won't fix it (uploading the bootloader again do it won't either, it's unrelated.)
you can contact firstname.lastname@example.org to get a replacement.
I've had this happen to me twice with these radio during the development process. The two causes were:
In both cases the radios would panic continuously on boot. After I fixed the causes they were fine.
The 'panic' messages happen because the 8051 doesn't get sensible replies from the radio module when it tries to initialise the radio. That does sometimes happen on a software reboot using ATZ if we've left the radio module in a bad state (ie. I probably don't have the reset code quite right), but it shouldn't happen on an initial powerup. If it does happen on initial powerup (which it seems to be for you) then its almost certainly a hardware issue.
As Sam says, you can send yours back in for replacement, but if you prefer to tinker a bit first, perhaps the above will help you work out what's wrong.
I seem to be having the same exact issue as you. Did you ever get it fixed or just a replacement?
I got impatient bought another radio:) was planning on returning radio but wanted to see if i could fix it, motivation gone when i got another radio that worked.
There are some other threads about similar problems, u tried suggestions in this thread : http://diydrones.com/forum/topics/3dr-433-mhz-radios-not-working ?
....or just contact 3dr and get a replacement.
Hi gutzmann, the panic issue is usually caused by a malfunctioning HM-TRP module, which we don't manufacture. You can contact email@example.com to set up an RMA and get a replacement.
Alan: The second box is auto filled out when the two radios connect, which has not happened here. Are you sure you've got two 433 radios, and not one 433 and one 900? Where did you get them?
I bought them direct from 3D Robotics.
They did work when I received them. I had them on the bench and only tried them a couple of times. They have not been flown, moved or had not been disconnected only the MP had been updated during this time.
Please connect the "air" on the the FTDI cable and confirm that it has the same settings as the "ground" one that you read in the screen shot above.
Thanks Chris, sorry to waste your time silly me I had number of channels set differently.
I will go and see the optician on Monday.