daqopen-apps

This repository is a collection of various apps which uses the daqopen-lib.

• daq-zmq-server: ZMQ Pulisher for DAQ Data
• daq-zmq-viewer: GUI with ZMQ Subscriber for live viewing data

daq-zmq-server

The daq-zmq-server.py is an application for decoupling the actual acquisition-process from the consuming application. It can be run on e.g. an edge device like Raspberry Pi.

Features

• Collect data with the DueDaq library from the (USB) interface
• Add timestamp to each data package
• Publish the data together with necessary metadata with DaqPublisher

Usage

1. Install requirements

   pip install daqopen-lib

2. Edit the config/daqinfo.toml file regarding your needs

3. Start the daq-zmq-server.py manually or create a systemd service

4. Start client application and subscribe to the data (e.g. daq-zmq-viewer or DEWETRON OXYGEN with daqopen-oxygen-plugin)

daq-zmq-viewer

Debugging and testing tool for the daq-zmq-server. You can subscribe to the daqopen-device and live view the data. Bases on PyQt6 framework. It uses also ChannelBuffer for demonstration.

Features

• Set connection parameters in GUI
• Start acquisition (correct: start transfer)
• View live data
• Select channel to be viewed
• Set time window size

Usage

1. Install requirements

   pip install daqopen-lib PyQt6 pyqtgraph

2. Edit the config/daq-zmq-viewer.toml and set default parameters

3. Start the daq-zmq-viewer.py

4. Optionally edit connection parameter

5. Press Start to connect and start transfer