I wanted to make the timer more automatic. It annoyed me when I had to stop the timer after flights and also wanted to leave the flight-time visible until i removed power from heli and reset automatically.
I’m using used mAh to limit my flight-time so timer is just a flight-time log for me.
– Automatic start of timer upon take-off
– Stopping the timer when flight is over
– Resetting the timer when un-powering heli
– Works with all flight-modes (In example Normal, Idle 1, Idle 2, Autorotation, Hold)
– FW 3.02 in TX
– Telemetry fo flight-pack voltage
Start, heli unpowered. Timer won’t start regardless off flight-mode.
Heli powered, we’re in hold-mode before flight
Flight, here in autorotation.
Un-powered, timer resetted to STOP-mode.
Because of flight-modes we need five logical switches. (L6 is extra, I have hold-mode with two switches with OR-rule)
L1 is throttle-stick active AND L6 active (HOLD-off). L6 is reversed.
L2 is flight-modes Idle 1 OR Idle 2 active.
L3 is L1 OR L2, So L3 is active if L1 or L2 is active.
L4 is L6 AND L3, so L4 is active when hold is off and we’re in Idle 1 or Idle 2. L6 is again reversed.
L5 is again L4 AND MX1, this is active when L4 is active and heli is powered (MX1)
L6 is hold-mode, active when either left or right hold-switch is active.
MX1 is a simple switch to recognize powered heli. Using a rule “when flight-pack voltage is over 5V”.
MX3 is to recognize un-powering of heli. Define a telemetry-control to activate when flight-pack voltage have been less than 2.0 volt’s for more than one second. (Time-rule to eliminate unnecessary reset’s if we have a short glitch in telemetry) Note Default-setting 100%
Timer itself is simple, starts from zero and stops when flight ends, hopefully without a crash. Time remains stopped in display until I power off the heli.
Start with L5 and reset with MX3 and short reset-type.
Now, go out and fly!
4 thoughts on “Flight-time timer and automatic reset”
I am using the retract switch to start my timer, the problem is that when i lower the gear the timer stops. Is there a way around this?
First idea is to use another switch of course :)
Sorted, it needed to be set up as a free running timer. Steve Collins on the Facebook jeti page helped.