i guess. like fly to a specified gps location. Take pictures.. and then go to another location take pictures.. that type of stuff...

@Neal: do a search on "shutter" or "trigger" adn check out the aerial photography discussion

Jordi,
Chris states in the 2.1 field setup:
“2. Place a jumper cap on pins D6 and D7 (you can also connect a regular RC power switch to those pins if you want to control the autopilot from outside of the aircraft).”
But you stated:
“In 2.1 is different in order to free the pin 7, you need to ground pin 6 to set home position or leave unconnected to continue normally. The pin 7 is now used to turn of the GPS in the Shields...”
Which is correct?
Thanks

Bryan,

As I posted here, that was a mistake.

I've tried to find the answer by reading as much as I can about ArduPilot but I still can't so here's the question -
The Ardupilot is a fairly complex device and it even uses GPS, so why does it use the pyro sensors instead of a dual axis accelerometer?
The cost is about the same but the accelerometer would give much more stable data on the attitude of the aircraft, especially when near a cliff or building and when lining up for landing.
Damped accelerometers measure the actual angles but the pyro sensor assumes a flat 360 degree horizon in all phases of a flight.
I am not criticising the ArduPilot or the pyro sensors, I just want to know why they have been chosen.

Hi, I have a receiver that in case of signal loss stop all pulsing in the outputs.
When this happend Ardupilot program stops running. PulseIn is supose to have a timeout
parameter, but is this really working? Program keeps running if I remove all PulseIn sentences or if I turn on again the transmitter.
Pablo

Pablo,

ArdupIlot only reads your RC input once, at startup, so that's not it. It may however be that the MUX is reading the RC signal loss as on "off" command. If you want proper signal loss behavior, upgrade the MUX/Attiny software to version 1.6.

Bill,

Bill, you can't fly a plane on two accelerometers! This comes up a lot with beginners, so we even put a post on the front page to address it.

Hi Chris, in the main loop we have:

read_Ch1(); //reading the receiver with very short delays
read_Ch2(); //Reading the receiver with very short delays

and in the navigation folder:

/* void stabilization(void)
{
unsigned int t_dt=millis()-PID_timer; //Timer...

if(t_dt > PID_dt)
{

if((abs(read_Ch1())>25) || (abs(read_Ch2())>25))//Fly by wire, check if we move the sticks
{
pulse_servos(PID_roll(roll_trim+(read_Ch1()/16), get_roll(),roll_abs,t_dt),PID_pitch(pitch_error(pitch_trim+(read_Ch2()/16), get_pitch()),t_dt));
}

If I dont remove this sentences on no input pulses, program is frozen.
Regards, Pablo