NCD Wireless Contact Closure Sensor

Introduction

This guide will help you set up and launch your project using the Industrial IoT Wireless Contact Closure Input Sensor. You will learn how to monitor contact closures and send the data wirelessly to the NCD Enterprise IIoT Gateway and the Blynk IoT platform.

How To Use This Blueprint

Step 1: Unpacking and Initial Setup

1.1 Required Components:

• Wireless Contact Closure Input Sensor: Monitors contact closures and sends data wirelessly.
• NCD Enterprise Gateway or Enterprise IIoT Gateway Lite: Receives data from the sensor and sends it to Blynk.
• Antennas: For wireless communication.
• Batteries (if applicable): Power source for the sensor.
• Mounting accessories: To securely install the sensor.

1.2 Initial Setup:

1. Unpack all components: Ensure you have all the required parts.
2. Attach antennas to the sensor and gateway: This enables wireless communication.

Step 2: Configuring the NCD Gateway

The NCD Gateway connects your sensor to the internet and the Blynk platform. You can connect the gateway via Ethernet, Wi-Fi, or LTE.

2.1 Ethernet Configuration

Ethernet provides a stable and fast connection.

1. Connect Ethernet Cable:
   • Plug one end of an Ethernet cable into the ETH1 port on the gateway.
   • Plug the other end into your router or network switch.
2. Power On the Gateway:
   • Connect the power adapter to the gateway and plug it into a power outlet.
   • The gateway should power on, indicated by the power LED lighting up.
3. Access the Web Interface:
   • Open a web browser on a computer connected to the same network.
   • Enter the gateway’s IP address (you can find this in your router’s connected devices list) to access the web interface.
4. Optional: Static IP Configuration:
   • If you need a fixed IP for the gateway, navigate to "Network > Ethernet" in the web interface and set a static IP.

2.2 Wi-Fi Configuration

Wi-Fi allows wireless communication between the gateway and your network.

1. Connect to the Gateway:
   • Use an Ethernet cable to connect your computer to the gateway’s ETH1 port.
2. Access the Web Interface:
   • Open a web browser and enter the gateway’s default IP address (typically 192.168.0.1).
   • Log in using the default credentials provided in the device’s documentation.
3. Set Up Wi-Fi:
   • In the web interface, go to "Interface > Wi-Fi".
   • Choose between Access Point (AP) Mode or Client Mode:
     • AP Mode: The gateway creates its own Wi-Fi network.
     • Client Mode: The gateway connects to an existing Wi-Fi network.
   • Enter the SSID (network name) and password of your Wi-Fi network if using Client Mode.
   • Click “Submit” to save the settings.
4. Disconnect Ethernet Cable:
   • Once Wi-Fi is set up, you can disconnect the Ethernet cable.

2.3 LTE Configuration

LTE is ideal for remote locations where Ethernet or Wi-Fi isn't available.

More Information: To get more details about setting up the NCD Gateway, including other connectivity options and advanced configurations, visit the NCD Enterprise IIoT Gateway Blueprint on Blynk.

2.4 Choosing Connectivity Interfaces

The NCD Enterprise IIoT Gateway offers three main connectivity options: Ethernet, Wi-Fi, and LTE. You can choose the one that best suits your setup.

2.5 Access Interfaces

1. Web Configuration: Access the configuration interface at http://[domain_or_ip] using ncdio / ncdB3ast for login.
   • Domain Name: The domain name format is ncd-xxxx.local, where xxxx are the last 4 characters of the Gateway's MAC address. The MAC address can be found on the side of the device. For example, if the last 4 characters of your Gateway's MAC address are c398, the domain name would be http://ncd-c398.local.
   • Network Settings: Configure static IPs, DNS, and firewall rules as needed.
   • Customizations: Set up user accounts, logging, and notifications for specific events.
2. Node-Red: Visit http://[domain_or_ip]:1880 to use Node-Red.
3. SSH Access: Connect via SSH with ncdio / ncdB3ast on port 22.

Step 3: Setting Up Your Device in Blynk

1. Use the Sensor Blueprint: Click the Use Blueprint button.
2. Activate the Device: On the right panel, click the Activate Device button.
3. Generate AuthToken: Click the Generate AuthToken button. You'll need the generated AuthToken for the next step. Click button Next.

Step 4: Accessing Node-RED on the Gateway

1. Open Node-RED:
   • In a web browser, navigate to http://[gateway IP]:1880 or http://[domain]:1880.
   • Log in to the Node-RED dashboard using ncdio / ncdB3ast.

Step 5: Configuring the Node-RED Flow

1. Import the Flow:
   • Copy or download the firmware flow file from the second step of device activation.

1. • In Node-RED, press CTRL + I or use the menu to select Import.
   • Paste the copied code or upload the flow file (.json).
2. Set Up MQTT:
   • Click on the any of the highlighted MQTT-out node.

1. • Select the highlighted icon.

1. • Go to the Security tab.

1. • Enter the AuthToken generated by Blynk as a password for your device (use “device” as the username).

1. Your flow should look like this:

Step 6: Running the Sample Using Node-RED

1. Deploy the Flow:
   • Click the Deploy button in Node-RED to activate the flow.
2. Test Your Setup:
   • Go to Blynk.cloud to check the sensor data and verify everything is working.

Dashboard Components:

Battery Indicator (V0):

• Located on the left side, this gauge displays the battery level of the device as a percentage (currently 64%). The gauge ranges from 0% to 100%, visually showing how much battery power is left.

Input Status History (V1, V2):

• Inputs 1 and 2: This section shows the history of two inputs over time. Each input has a corresponding colored bar:
  • Red Bars: Indicate that the input was in a particular state (likely "open").
  • Green Bars: Indicate a different state (likely "closed").
• The timeline below the bars shows the exact times when these states changed.

Notification Toggles (V3, V4):

• Notify when Input 1 is OPEN: A toggle switch that allows users to enable or disable notifications when Input 1 is in the "open" state.
• Notify when Input 2 is OPEN: Similarly, this toggle switch is for notifications related to Input 2.

The dashboard provides a concise view of the device's battery status, historical data for two inputs, and the ability to set up notifications based on the state of these inputs. The history is visually represented with colored bars, making it easy to see when changes occur over time. The interface is designed for real-time monitoring and quick access to essential controls.

Next Steps

After setting up your system and addressing any issues, you can expand and optimize your project with the following steps:

• Explore the Blynk Web Console and Blynk IoT app, start monitoring your sensor data from both.
• Set up notifications and log events with Automations..
• Discover how to Share Devices with other users.
• Add more sensors or devices to your setup.
• Learn how to work with Virtual Pins and MQTT API to customize the code for specific needs.

Troubleshooting

To ensure a smooth experience, make sure you are using the latest versions of the software and libraries. Below are some common issues you might encounter and their solutions:

Common Issues

1. Connection Problems:
   • Ensure the sensor is powered and within range.
   • Check firewall rules.
2. Calibration Errors:
   • Follow the software instructions to recalibrate the sensor.
   • Ensure the environment is stable during calibration.
3. Node-RED Issues:
   • Flow Not Deploying: Check for syntax errors or missing nodes.
   • MQTT Connection Failure: Verify MQTT broker settings and credentials.

Related Links

• Blynk MQTT API Documentation
• Blynk Documentation
• Blynk Node-RED Guide
• NCD Wireless Contact Closure Input Sensor Documentation
• Node-RED Documentation
• NCD Support

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