node-red-contrib-adxl-vibration-fft

Node-RED nodes for Vibration Measurement using:

1. Analog Devices' EVAL-ADXL100X Vibration Sensor Evaluation Board and EV-COG-AD4050 ARM Cortex M4F MCU with the special firmware for FFT (Fast Fourier Transform)
2. EMQuest-VA by UQUEST, LTD.

The nodes work with other MCU boards using the same UART protocol as the above firmware as well.

Example Flow

The bundled example flow provides the following demonstrations:

• Show FFT value chart with FFT peak value refreshed every second on Dashboard
• Show FFT peak value (frequency and amplitude) on Dashboard

Prerequisites

Supported Hardwares

Analog Devices

• EVAL-ADXL1002Z ... MEMS Accelerometers
• EV-COG-AD4050LZ ... Microcontroller development board
• EV-GEAR-EXPANDER1Z ... Expansion board for bread boarding
• 2-conductor Shielded Cable
• USB cable (Type A - microUSB) for connecting EVAL-ADXL1002Z board to Raspberry Pi
• Frequency range is 0-20KHz.

UQUEST, LTD.

• EMQuest-VA with an extra USB serial cable
• Frequency range is 0.05-1.5KHz.

Software

Analog Devices

• Firmware for this node is available at analog.com/jp. User registration is required.

UQUEST, LTD.

• Firmware is pre-installed (proprietary licensed software)

How to install

Node-RED users

Use Manage Palette dialog in the browser editor or run the following commands:

cd ~/.node-red
npm install node-red-contrib-adxl-vibration-fft

Then restart Node-RED process.

Uninstallation

The following command uninstalls SmartMesh SDK python executables/libraries as well as this node package.

cd ~/.node-red
sudo npm uninstall --unsafe-perm node-red-contrib-adxl-vibration-fft

CANDY RED users

Use Manage Palette dialog in the browser editor or run the following commands:

cd /opt/candy-red/.node-red
sudo npm install --unsafe-perm node-red-contrib-adxl-vibration-fft

Then restart candy-red service.

sudo systemctl restart candy-red

Uninstallation

Manage Palette dialog should work for uninstallation as well as the following commands:

cd /opt/candy-red/.node-red
sudo npm uninstall --unsafe-perm node-red-contrib-adxl-vibration-fft

The above command uninstalls SmartMesh SDK python executables/libraries as well as this node package.

Appendix

How to build

# build
$ NODE_ENV=development npm run build
# package
$ NODE_ENV=development npm pack

License

• Source Code ... ASL 2.0 ©CANDY LINE INC.
• Node Icon ... CC BY-ND 3.0 © icon8

Revision History

• 3.1.0

  • Add an experimental feature to read data from UQUEST EMQuest-VA with ADXL1002

• 3.0.1

  • Fix an issue where sensor data was not sent after reconnecing serialport

• 3.0.0

  • Add support for new edge device (UQUEST EMQuest-VA)
  • Improve serialport reconnection

• 2.0.0

  • Fix an issue where the node didn't work on Node-RED v1+

• 1.1.1

  • Fix node definition errors

• 1.1.0

  • Add Node.js v12 support
  • Drop Node.js v8 support

• 1.0.1

  • Add help text

• 1.0.0

  • Initial Release