Re: [Paparazzi-devel] Fast motor switch off

[Eduardo lavratti]

Sorry for delay Dr.-Ing

Put the       <define name="RADIO_KILL_SWITCH" value="RADIO_CH6"/>
in the firmware section

Dont forget to change the RADIO_CHx to your correct radio channel.

I use this switch for emergency only.
It turn off all motor .

Some time ago i had exactly the same problem you described and the kill_switch saved my day ... not the airframe because its jump more than 5 meter.

---

Date: Sun, 3 Feb 2013 19:50:24 +0100
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] Fast motor switch off

Hello Mr. Warmers,

I don´t know about that kill switch but maybe a faster disarming procedure will do the trick. Passage from our documentation-in-progress (German though):

"Die Verzögerung des Motorenstartes wird bis einschließlich der stabilen Version 4.2 der Paparazzi Software in der Datei autopilot_arming_yaw.h eingestellt. Die Variable MOTOR_ARMING_DELAY gibt die Anzahl der RC Signale an, die nacheinander die für den Start bzw. das Abschalten notwendige Position des Yaw-Hebels senden müssen. In der Standardkonfiguration sind dies 40 Signale.

#ifndef MOTOR_ARMING_DELAY

#define MOTOR_ARMING_DELAY 40

#endif

 

Dieser Wert ergibt bei einem 35MHz Sender eine Verzögerung von etwa einer Sekunde."

You should also be able to define that in your airframe file:

<define name="MOTOR_ARMING_DELAY" value="20"/>

Hope, it helps!
Andrius

PS:  Just ask Mr. Frommann, if you are interested in the rest of our documentation. Should be finished by Fr.

Am 03.02.2013 09:26, schrieb Prof. Dr.-Ing. Heinrich Warmers:

Hi Eduardo,
how can i  config it?
The switch on the ground station is not possible to use, the switch  for mode by a switch  on the rc transmitter acts to late.

Heinrich
Eduardo lavratti schrieb:

KiLL SWiTCH

> Date: Sat, 2 Feb 2013 22:55:16 +0100
> From: address@hidden
> To: address@hidden
> Subject: [Paparazzi-devel] Fast motor switch off
>
> Hi,
> i need a fast motor switch off by a RC command to prevent accidents in
> ATT mode of mutirotors.
> We had a accident within vibrations induced power.
> The multirotor climb even with zero throttle.
> For such critical situations i want to realize a fast motor switch of.
> The normal cut off by throttle stick down left reacts to late (about
> 2 to 5 seconds).
> How is this possible to realize?
>
> Heinrich
>
>
>
>
> _______________________________________________
> Paparazzi-devel mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel

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