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Teensy 4.1 Input trigger

in Questions

I'm trying to have the AR4 software respond to an input trigger (wired to pin 33 and GND pin)

I'm seeing 3.3v between the two pins and PULLUP is set on the teensy scratch.

I've tried the following inserted commands in the AR4 software program document (AR4 SOFTWARE COMMANDS FOR IO)

"TwaitI = 33"

"TwaitO = 33"

"TifOn = 33"

"TifOff = 33"

I haven't been able to get these to work, and stumped as to what to try next.

11 comments

Comments (11)

Johann Voigtlander

Aug 03, 2022

Can you use one of the arduino inputs instead?

Welding Flash Restorations

Oct 21, 2022

Replying to

I have got it working with help from Chris

Johann Voigtlander

Oct 21, 2022

Replying to

How did you get it working?

I am keen to figure it out

Welding Flash Restorations

Oct 21, 2022

Replying to

The way I got the triggers working for inputs for the teensy we’re writing the code out correctly Capitals and lower case here’s my code which dose as expected thanks to Chris Annin for his help

You also need a 3 pin switch to connect to teensy 1.4

COM to pin 32 / pin of your choice if available

NO (Normally Open) to pin 3.3v

NC (Normally Closed) to GND

ANNIN ROBOTICS

Teensy 4.1 Input trigger