Dual Momentary Sink-to-Ground for Screen Control

Edited

This guide explains how to control a motorized screen using two momentary sink-to-ground triggers: Up and Down.

1. Hardware

Wire the screen control inputs to the GPIO Card
(Follow the wiring reference for correct sink-to-ground wiring.)

Each screen direction, Up and Down, will connect to its own GPIO Output.

2. Software

Step 1 - Add required modules

Add the following blocks to your project:

Screen Radio Button (configured with 2 nodes: Up and Down)
GPIO Output Card

Step 2 - Connect logic paths

Connect the Up node from the Screen Radio Button to the GPIO Output channel for Screen Up.
Connect the Down node to the GPIO Output channel for Screen Down.

Step 3 - Assign GPIO channels

Open the GPIO Output Card and assign each output to the correct pins that connect to the screen controller.

3. Test

Verify screen movement:

Press Up → screen raises
Press Down → screen lowers

The screen should respond immediately to each momentary press.