#18 What signal or instruction to catch pins contact on Neutrik

[Seb k]

Hello,

I'm using :

• Uno R3
• DMX Shield CTC-DRA-10-R2
• Conceptinetics.h

For the making of a DMX Dowser/Shutter.
Everything goes well for make turn the servo with dmx signal in RDM Slave mode.

I would like to add a switch for making the servo move on 1 and 3 pins of the DMX input for a stand alone use.

I'm searching how can I read that swtich signal like I read it from DMX console.
I would like to use serial port for debug but it seems to not work because of using UART by DMX Shield

Thanks for any advice