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)
1. EMQuest-VA by UQUEST, LTD.

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

!Vibration Sensor Device

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

$3

- 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.

$3

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

Software

$3

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

$3

- 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.




$3

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
`

$3

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