N-Button Pro and N-Button Lite make it possible to control relay controller boards of National Control Devices and K8090/VM8090 relay card of Velleman without any programming! You can create a button to control relays with a few clicks in N-Button Pro/Lite. You also can create Relay Status widget to display the status of the relay.
Here are the steps to create Relay Status widget.
2. Click Setting button to select the Manufactory for your relay, National Control Devices or Velleman. Select connection method between relay board and computer, Serial Port/USB or Network.
3. Click “Relay Status” on N-Button Pro/Lite Manager to show Properties – Relay Button dialog to set relay channel and appearance for Relay Status widget.
4. Click OK button to return to N-Button Pro/Lite Manager. Click ”Relay Status” to add more widgets. Click OK button on N-Button Pro/Lite Manager, you will see the Relay Status widgets floating on your desktop.
When the status of relay is changed, the color of Relay Status widget will also be changed.