# DAQ system Report

**DAQ → Labview on rpi → ROS2**


# Test for feasibility.

### 1. Labview on rpi.

[NI Learning Center - NI](https://learn.ni.com/learn/article/getting-started-with-raspberry-pi-and-labview-community-edition)

### 2. DAQ compatibility.

Not sure.

[USB-1210 | USB DAQ | ADLINK](https://www.adlinktech.com/Products/Data_Acquisition/USBDAQ/USB-1210#tab-ordering)

### 3. Communication between Labview and ROS2.

Using RTI DDS toolkit.

[https://github.com/SynapseProgramming/ros2labview_guide](https://github.com/SynapseProgramming/ros2labview_guide)

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# Updata 2023/11/16

## change of DAQ
### Old DAQ:
https://www.adlinktech.com/Products/Data_Acquisition/USBDAQ/USB-1210?lang=zh-Hant

#### 缺點
1. 體積大
2. 官方API(MAPS)不支援Linux(Rpi)
3. 若仍須使用，需要許多程式進行資料轉接->更多開發時間、不易軟體間通訊
4. 效能過剩(要探測的訊號源頻率為45k，其Sample rate最高可達2M/s，遠超出我們的需求)，不符合使用效益

### new DAQ:
https://digilent.com/shop/mcc-118-128-voltage-measurement-daq-hat-for-raspberry-pi/

#### 優點
1. 體積小，直接接在rpi上
2. 專為Rpi開發
3. 有完善的API(C++, python)
4. 整體架構變得直觀(資料不須轉接)
5. Max Sample rate=100k/s，符合需求