Hi all,
I am new to UAVs, I recently bought the APM 2.5, I have uploaded the Arducopter into the APM, if I try to connect via USB or the 3DR radios to mavlink, it does not connect, the error message is "No HEARTBEAT Packets Recieved", my baud rate for usb and radios i selected them correctly (115K and 56K), and i do not have the apm and radios connected to computer at the same time i.e if radios are connected to computer apm is powered via Esc. If i click on terminal it reads port is open, the board flashes LEDs 'A' and 'C' but if i type anything e.g test, pwm and hit enter nothing happens. as long as the board is powered on the LED 'A' is blinking. I tried reseting the board by pushing the reset button still no change in behavior of the board. Please HELP!!!!
I am building this UAV for my senior project.
Replies
Hammad I have the same problem I have found that UART2 the chip is opposite side of the silkscreen is blown
it has a tiny pinehole in it as well as the diode just above IC2
did you plug your USB to your PC with the lippo battery connected to the ESC and jumper 1 on
I think it is really a poor design no instruction came with the board and all you have is the blogs and wikki which are in fact very confusing can anyone confirm having had the same blow up board ????
did you also perhaps have this problem after calibrating the ESC been connect disconnect reconnect the Lipo battery pack?
did you use JP1 on? I have a feel that this is the cause of spikes that damage the board.
http://diydrones.com/forum/topics/com-port-doesn-t-existed-error?co...
Hope it works for ya.
Are you seeing both com ports in the mission planner? Are your 3DR packet radios just not working, or does USB still work?
Also, have you tried the stand alone 3DR radio application to test the radios?
same here used to work when I upgraded no more same message.....HELP