Step 1: Wiring Stack Light

Stack Light Leads OV20i Lead Color OV20i Pin Number Node-RED Function
V(-) Pink OR Yellow Pin 5 OR Pin 6 n/a
V(+) White/Green OR Brown/Green Pin 13 OR Pin 14 n/a
Green LED Input Purple Pin 10 Output 1
Red LED Input Gray/Pink Pin 11 Output 2

Step 2: Setting up OV20i I/O Control (Node-RED)

  1. Go to I/O Block on your OV20i. The following basic flow will turn on Output 1 (Green Light) if your Classification passes. It will turn on Output 2 (Red Light) otherwise.

image (40).png

You can import this flow directly by downloading the following flow. To import a flow follow these instructions.

BasicFlow.json

  1. Configure your “Classification Block Logic” based on your pass/fail criteria. Instructions for that can be found here.

Additional Details

<aside> 💡 On pinout sheet:

</aside>

Digital Output Wiring

The OV20i digital outputs are NPN (i.e. sinking, active low) outputs. This means that the outputs provide a switching connection to ground, rather than supplying positive voltage. The OV20i outputs are suitable for controlling any device that does not exceed these limits: