RV12 Flap Overspeed Alert - HDX setup

[GatorsR1]

I have a dual HDX setup in my RV12 (ELSA). Trying to get an aural alert at Vfe (81 knots) if the flaps are not retracted.
I added a contact switch at the flaperon mixer and ran wire to unused pin (EMS 37 pin 10) so that a ground is passed through the micro switch to pin 10 of the 37 pin WH-00020-1 ES-00057 female connector that plugs into the EMS module.
I get a CAL (V) value change at pin 10 in the Sensor Debug Data screen when I move the flaps.
But I don't get the aural warning in flight.
So evidently I've missed something in the "programming".
Sure would appreciate some advice.
Thanks!
Bob

 

[Stevec]

Not sure you need the switch. I have installed a Ray Allen position sensor and programmed the flap positions through the calibration routine in hardware setup, I think that’s where it is. When the flap is out of the calibrated up position and speed exceeds the max flap speed I get the warning. The RV12 kits I have built have this already set up you may just need to calibrate it.

 

[RandomSquawk]

I have a dual HDX setup in my RV12 (ELSA). Trying to get an aural alert at Vfe (81 knots) if the flaps are not retracted.
I added a contact switch at the flaperon mixer and ran wire to unused pin (EMS 37 pin 10) so that a ground is passed through the micro switch to pin 10 of the 37 pin WH-00020-1 ES-00057 female connector that plugs into the EMS module.
I get a CAL (V) value change at pin 10 in the Sensor Debug Data screen when I move the flaps.
But I don't get the aural warning in flight.
So evidently I've missed something in the "programming".
Sure would appreciate some advice.
Thanks!
Bob

What was your final configuration? I too have wired up a contact and am struggling to get the audible. I believe one change I need is to set the input type to "position", instead of "contact", but I'm not certain yet. If I do, I hope the internal pullup resistor is still active.

 

[GatorsR1]

I have not figured it out yet ... have been hoping someone would chime in with the "magic" settings.
Curious what you mean by "internal pullup resistor is still active"?
Perhaps your config is not "classic" RV12 (manual flap actuation)

 

[RandomSquawk]

I have not figured it out yet ... have been hoping someone would chime in with the "magic" settings.
Curious what you mean by "internal pullup resistor is still active"?
Perhaps your config is not "classic" RV12 (manual flap actuation)

I do have the ULS with manual flaps. I did some more reading last night, and by the end of this weekend I should have it figured out. If I do, I'll come back here and comment. Pullup resistors are a way to ensure a disconnected input does not "float" (random value). They ensure the chip "sees" +5v on the input if there is no connection. The EMS has these built in for some of the general purpose inputs, and they are active for "contact" inputs like the canopy latch. I believe pullups are disabled under certain other input types. I just don't know. Edit: Somewhere I read that the flap alert requires a "position" type input (instead of "contact").

 

[RandomSquawk]

Partial follow up: When you select sensor type "position" you are immediately given the choice of which (available) pullup value the EMS will use. I chose 10k. After that the standard set of name choices includes "flaps". Once that is done you still have to go through EMS hardware calibration for that sensor (just 2 positions: 0%, and anything higher than 5%). I still have not enabled audio for that alert. I want to be sure all is working properly first. I did see that my flaps widget on screen does not show any sort of warning/color, so I may still have something configured wrong.