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OpenTX - Application Note 02

Timer Use a Switch to Reset, Pause and Run

A 3 position switch is used to reset, pause and run a timer. In this example switch SA is used to control timer 1.

 

SA↑ is used to reset timer 1,

SA- is used to pause timer 1,

SA↓ is used to run timer 1.

 

The timer is set up to run and pause in the Model Setup screen. To reset the timer, a special function is used.

Model Setup Screen

In the Model Setup screen, set Timer 1 to run and pause as follows.

 

Parameter

Value

Description

Trigger

SA↓

The timer runs when switch SA is down. The timer is paused while Switch SA is not down.

Time

10:00

Set the duration to, for example, 10 minutes. When the timer is reset, it will be set to this value.

If this value is 00:00, the timer will count up instead of down.

Persistent

 

Choose one of the following options.

OFF = timer will not retain its value during radio power off.

Flight = timer is reset only when flight is reset.

Manual Reset = timer is reset when manually reset.

Minute Call

 

If you tick this, the remaining time will be called at every minute.

Countdown

 

Choose one of the following options.

Silent = announcement only at zero,

Beeps = beeps at 30, 20, 10 seconds,

Voice = voice replaces beeps.

Reset the Timer.

To reset timer 1 using switch A, create a special function

Function Number

Source

Function

Parameter 1

Parameter 2

Check Box

SF1

SA↑

Reset

Timer 1

 

□ ticked

 

In this example, special function 1 uses SA↑ (switch A in the up position) as the source to reset timer 1. Ensure to check the box to enable this function.

Check That It Works

On main screen 1, timer 1 value is displayed.

When switch A is up, the timer is set to the preset duration. (10:00 minutes in our example.)

When switch A is in the mid position, the timer pauses at the current value.

When switch A is down, the timer counts.

 

Phantom Divide

 

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