PLX-DAQ 2.11 is not high‑speed. It maxes out around 50–100 samples per second, and large macros can slow Excel. It’s also Windows‑only, and modern Mac Excel no longer supports VBA in the same way.
But for its intended job — slow sensors (temperature, humidity, pressure, light, analog voltages) over hours or days — it’s nearly perfect.
Released quietly in 2021, this version isn’t a rewrite — it’s a refinement of the original 2010-era macro. The update fixed:
Under the hood, it’s still an Excel VBA macro — but a surprisingly robust one. It watches the serial port like a hawk and writes each incoming line to a new row, with optional timestamping and live graphing.
PLX-DAQ Version 2.11 is a free, macro-enabled Excel tool that enables real-time data acquisition and graphing from microcontrollers like Arduino, featuring enhanced stability, higher baud rates, and automatic timestamping. Developed by the community as an upgrade to the original Parallax software, this version offers a user-friendly solution for direct data logging into spreadsheets. Download the software and view documentation at GitHub. PLX-DAQ-v2.11.xlsm - GitHub
RFID_Excel/PLX-DAQ-v2. 11/PLX-DAQ-v2. 11. xlsm at master · InfinityWorldHI/RFID_Excel · GitHub. Gravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika
PLX-DAQ Version 2.11 is a powerful tool designed to bridge the gap between microcontrollers and Microsoft Excel. If you are working with Arduino or any basic serial output device, this software allows you to transform raw data into live spreadsheets. What is PLX-DAQ?
PLX-DAQ (Parallax Data Acquisition tool) is an add-in for Microsoft Excel. It captures serial data from your computer's COM port and automatically populates Excel cells in real-time. Instead of just watching numbers scroll by on a Serial Monitor, you can create live graphs, calculate averages, and store data for long-term analysis. Key Features of Version 2.11
The 2021 update to Version 2.11 brought several stability improvements and compatibility fixes for modern Windows environments.
Real-Time Graphing: Plot data points as they arrive from your sensor.
64-Bit Support: Fully compatible with both 32-bit and 64-bit versions of Microsoft Office.
Multi-Column Support: Log up to 26 columns of data simultaneously.
Timestamping: Automatically adds PC time and date to every data row.
User UI: Includes a simple control panel to start, stop, and reset logging. System Requirements
Before downloading, ensure your setup meets these basic needs: Operating System: Windows 7, 8, 10, or 11. Software: Microsoft Excel (2010 or newer recommended).
Hardware: Any microcontroller with serial output (Arduino, ESP32, PIC). How to Download and Install
Downloading the 2021 version of PLX-DAQ is straightforward. Follow these steps to get started:
Locate the Source: Download the .zip file from the official Parallax forums or reputable GitHub repositories hosting the v2.11 update. Extract Files: Unzip the folder to your desktop. Plx-daq Version 2.11 Download -2021-
Enable Macros: Open the Excel file provided in the folder. You must click "Enable Content" or "Enable Macros" for the tool to function.
Install Drivers: Ensure your Arduino drivers are up to date so the COM port is recognized. Basic Arduino Integration
To send data from your Arduino to PLX-DAQ, use simple Serial.println commands. Here is a basic template:
void setup() Serial.begin(9600); Serial.println("CLEARDATA"); // Clears existing data Serial.println("LABEL,Time,SensorValue"); // Sets column headers void loop() int sensorValue = analogRead(A0); Serial.print("DATA,TIME,"); // Sends "DATA" prefix and current time Serial.println(sensorValue); delay(1000); Use code with caution. Troubleshooting Common Issues
Port Busy: Ensure the Arduino Serial Monitor is closed before clicking "Connect" in PLX-DAQ.
Macro Errors: Check your Excel Security Settings. Set "Macro Settings" to "Disable all macros with notification."
Garbled Text: Match the Baud Rate in your code to the Baud Rate selected in the PLX-DAQ UI. If you’d like, I can help you: Write a custom Arduino script for your specific sensors Fix connection errors between Excel and your board Set up automated charts that update as data flows in
PLX-DAQ Version 2.11 is a data acquisition add-on for Microsoft Excel that allows microcontrollers, such as Arduino, to send real-time sensor data directly into a spreadsheet for analysis and graphing . While original versions were developed by Parallax, version 2.11 is a significant update often shared via the Arduino Forum that introduces modern compatibility and features . Key Features of Version 2.11
64-Bit Support: Fully compatible with both 32-bit and 64-bit versions of Microsoft Office and Windows 10 .
No Formal Installation: Unlike older versions that required an .exe installer and system drivers, v2.11 runs entirely within the Excel workbook using API calls .
High Baud Rates: Supports faster serial communication speeds up to 250,000 baud .
Extended Capacity: Supports Excel’s modern row limit (over 1 million rows) rather than the legacy 65,000-row limit .
Real-Time Graphing: Includes features like AUTOSCROLL, which automatically moves the view as new data rows are added .
Debugging Tools: Features a "Direct Debug Window" that allows users to monitor incoming and outgoing serial data for troubleshooting . How to Use PLX-DAQ v2.11 PLX-DAQ v2.11 Dual Trace Transfer to Excel | Details
PLX-DAQ Version 2.11 is a high-performance macro-enabled Excel spreadsheet designed to bridge microcontrollers (like Arduino) directly into Microsoft Excel for real-time data logging and analysis. 🚀 Key Features in Version 2.11
64-Bit Support: Full compatibility with 64-bit versions of Microsoft Office, ensuring stability on modern Windows 10/11 systems.
Auto-Scroll Function: The AUTOSCROLL_XY parameter in the DATA command automatically scrolls the sheet as new data arrives, keeping current readings visible. PLX-DAQ 2
Enhanced Debugging: The Direct Debug Window now supports resizing and specific logging modes for system, incoming, or outgoing data.
Multi-Sheet Posting: A dropdown menu allows you to select which specific Excel sheet should receive the data stream.
High Performance: Optimized data processing handles multiple incoming lines faster, and default line breaks remove the need for manual delays after set/get calls.
Extended Channel Support: Record up to 26 columns of data simultaneously with real-time timestamps (hh:mm:ss) or seconds-since-reset counters. 🛠️ Essential Commands & Syntax
PLX-DAQ works by parsing standard serial strings sent from your microcontroller.
Before downloading, ensure your setup matches the 2021-era specifications:
2021 Update: Version 2.11 dropped official support for Windows XP. Users on XP should stick to v2.09.
There are newer tools out there (like MegunoLink or Serial Studio), but none offer the raw, immediate "print-to-cell" speed of PLX-DAQ 2.11. For logging a solar charger, monitoring a greenhouse, or debugging a robot—this 2021 release is still the king in 202[Current Year].
Have you run into issues with the newer DAQ tools? Or is v2.11 still your daily driver? Let me know in the comments below.
Download Link: [Insert your safe, clean download link here]
The "story" of PLX-DAQ Version 2.11 is one of a community-driven revival that kept a classic engineering tool alive for the modern era. The Origin: A Tool Left Behind Originally, PLX-DAQ was a free software tool created by Parallax Inc.
to bridge the gap between microcontrollers and Microsoft Excel. It allowed users to send data from an Arduino or BASIC Stamp directly into an Excel spreadsheet in real-time, effectively turning Excel into a powerful data acquisition system. However, as Windows and Excel evolved (moving to 64-bit systems), the original Parallax version became incompatible and stopped being updated. The Revival: NetDevil’s Version 2.x
The "story" changed in the mid-2010s when a member of the Arduino community, known as , took it upon himself to rewrite the tool from scratch. Version 2.11
, specifically associated with the 2021 timeframe in many user guides and repositories, represented the refined peak of this "v2" branch.
It solved the "64-bit problem" by using modern VBA (Visual Basic for Applications) macros that could run on the latest versions of Microsoft Office. A key feature of the release was its support for Dual Trace
and high-speed data transfer, allowing engineers and hobbyists to graph two sets of data simultaneously in Excel. The 2021 "Download" Context
, PLX-DAQ v2.11 became the gold standard for "Quick Start" DAQ systems in the maker community. It is frequently downloaded from community hubs like the Arduino Forum GitHub repositories rather than an official corporate site. Why People Still Use It The tool remains popular because of its simplicity: No specialized software : It uses the Excel interface everyone already knows. Direct Control : Users send simple Serial.print commands from their Arduino (e.g., Serial.println("DATA,TIME,TIMER,VAL1,VAL2"); ) and the spreadsheet automatically fills the rows. Real-time Analysis Under the hood, it’s still an Excel VBA
: It allows for immediate graphing and mathematical analysis of sensor data without needing to export files after an experiment [0.29]. to work with Version 2.11? PLX-DAQ-v2.11.xlsm - GitHub
RFID_Excel/PLX-DAQ-v2. 11/PLX-DAQ-v2. 11. xlsm at master · InfinityWorldHI/RFID_Excel · GitHub. She Lives! 8-Bit CCD Driver Circuit TCD1304DG…
PLX-DAQ (Parallax Data Acquisition tool) Version 2.11 is a specialized software add-in for Microsoft Excel
that allows users to bridge the gap between microcontrollers (like ) and a spreadsheet
. It essentially turns Excel into a real-time data logger and graphing tool. Core Functionality The software functions by monitoring a
on your computer. When your microcontroller sends specific serial commands (using Serial.print
), PLX-DAQ interprets those commands to fill cells, move to new rows, or even create timestamps in real-time. Key Features of Version 2.11 Ease of Use
: Unlike complex industrial DAQ software, PLX-DAQ is lightweight. Once the Excel macro is enabled, you simply select the Port and Baud rate to start logging. Real-Time Visualization
: Because the data goes directly into Excel, you can use Excel’s native charting tools to see live graphs of sensor data (temperature, pressure, etc.). Bidirectional Communication : Version 2.11 supports sending data
to the Arduino from Excel, allowing you to control hardware based on spreadsheet values. 64-bit Compatibility
: This specific version (developed largely by Netthuan and members of the Arduino forum) fixed many of the legacy issues found in the original Parallax version, making it compatible with modern 64-bit versions of Microsoft Office. Pros and Cons Free and Open Source : No licensing fees for hobbyists. Excel Dependency : Requires a desktop version of Excel (not web or mobile). No Complex Coding : Uses standard Serial commands you already know. Macro Security
: Some IT environments block the VBA macros required to run it. Low Latency : Capable of handling high baud rates (up to 128000+). UI Aesthetic : The interface is functional but looks dated.
If you are an educator, student, or hobbyist looking for the fastest way
to get sensor data into a spreadsheet for analysis without building a custom database or app, PLX-DAQ v2.11
While PLX-DAQ v2.11 is stable, development stagnated after 2021. If you are using Windows 11 with Excel 365, consider these modern alternatives:
However, for educational settings or legacy lab equipment running Windows 10 + Excel 2019, PLX-DAQ v2.11 remains the gold standard.