made README short

prathameshnium · prathameshnium · commit ebe1269a2268 · 2025-10-19T17:29:57.000+05:30
diff --git a/README.md b/README.md
@@ -7,16 +7,9 @@
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-  </p>
-  <p>
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 ---
@@ -30,7 +23,6 @@ A key architectural feature is the use of isolated process execution for each me
 PICA is designed with a clear separation between the user interface (frontend) and the instrument control logic (backend). This modular approach makes the system easy to maintain, extend, and debug.
 
 <div align="center">
-    <img src="_assets/Images/PICA_Laucher_V6.png" alt="PICA Launcher Screenshot" width="800"/>
     <img src="_assets/Images/PICA_Launcher_v6.png" alt="PICA Launcher Screenshot" width="800"/>
 </div>
 
@@ -41,7 +33,6 @@ PICA is designed with a clear separation between the user interface (frontend) a
 The core design philosophy of PICA is the separation of concerns, implemented through a distinct **Frontend-Backend** architecture for each measurement module.
 
 -   **Frontend:** Each measurement has a dedicated GUI script (e.g., `IV_K2400_Frontend_v5.py`) built with `Tkinter` and the `CustomTkinter` library. It is responsible for all user interaction, parameter input, and data visualization (live plotting). It runs in the main process.
--   **Frontend:** Each measurement has a dedicated GUI script (e.g., `IV_K2400_Frontend_v5.py`) built with Python's standard `Tkinter` library. It is responsible for all user interaction, parameter input, and data visualization (live plotting). It runs in the main process.
 -   **Backend:** The instrument control logic is encapsulated in a separate class (e.g., `Keithley2400_Backend`). This class handles all `PyVISA` communication, instrument configuration, and data acquisition commands.
 -   **Process Isolation:** When a measurement is started, the frontend launches its corresponding backend logic in a separate, isolated process using Python's `multiprocessing` library. This is the key to PICA's stability: a crash or error in one measurement script will not affect the main launcher or any other running experiments.
 -   **Communication:** The frontend and backend communicate via `multiprocessing.Queue` for thread-safe data exchange. The backend performs a measurement and places the data into a queue, which the frontend then reads to update plots and save to a file.
@@ -79,162 +70,71 @@ The core design philosophy of PICA is the separation of concerns, implemented th
 
 The core of PICA is built with a stack of robust and widely-used Python libraries.
 
-<p align="center">
-  <a href="https://www.python.org/"><img src="https://img.shields.io/badge/Python-3.9+-blue.svg?logo=python&logoColor=white" alt="Python"></a>  <a href="https://docs.python.org/3/library/tkinter.html"><img src="https://img.shields.io/badge/Tkinter-GUI-orange.svg" alt="Tkinter"></a>
-  <a href="https://github.com/TomSchimansky/CustomTkinter"><img src="https://img.shields.io/badge/CustomTkinter-Modern%20GUI-orange.svg" alt="CustomTkinter"></a>
-  <a href="https://pyvisa.readthedocs.io/en/latest/"><img src="https://img.shields.io/badge/PyVISA-Instrument%20Control-yellow.svg" alt="PyVISA"></a>
-  <a href="https://numpy.org/"><img src="https://img.shields.io/badge/NumPy-Data%20Handling-blueviolet.svg?logo=numpy&logoColor=white" alt="NumPy"></a>
-  <a href="https://pandas.pydata.org/"><img src="https://img.shields.io/badge/Pandas-Data%20Manipulation-purple.svg?logo=pandas&logoColor=white" alt="Pandas"></a>
-  <a href="https://matplotlib.org/"><img src="https://img.shields.io/badge/Matplotlib-Plotting-green.svg?logo=matplotlib&logoColor=white" alt="Matplotlib"></a>
-</p>
-
 - **Primary Language:** **Python 3.9+**
-- **Graphical User Interface:** **Tkinter** (with the **CustomTkinter** library for a modern look and feel)
 - **Graphical User Interface:** **Tkinter**
 - **Instrument Communication:** **PyVISA** (a Python wrapper for the NI-VISA library)
 - **Numerical Operations:** **NumPy**
-- **Data Structuring:** **Pandas**
 - **Data Visualization:** **Matplotlib**
 - **Concurrency:** **Multiprocessing** (a native Python library for process isolation)
 
 All required packages are listed in the `requirements.txt` file for easy one-step installation.
 
 ---
 ## Available Measurement Modules
-## Available Scripts & Modules
 
 The PICA suite is organized into modules, each containing a frontend GUI application and its corresponding backend logic for instrument control.
 
 #### Low Resistance (Keithley 6221 / 2182)
 *   **Delta Mode I-V Sweep**
-    *   **Frontend:** `Delta_mode_Keithley_6221_2182/IV_K6221_DC_Sweep_Frontend_V10.py`
-    *   **Backend:** `Delta_mode_Keithley_6221_2182/Backends/Delta_K6221_K2182_Simple_v7.py`
 *   **Delta Mode R vs. T (Active Control)**
-    *   **Frontend:** `Delta_mode_Keithley_6221_2182/Delta_RT_K6221_K2182_L350_T_Control_Frontend_v5.py`
-    *   **Backend:** `Delta_mode_Keithley_6221_2182/Backends/Delta_K6221_K2182_Simple_v7.py`
 *   **Delta Mode R vs. T (Passive Sensing)**
-    *   **Frontend:** `Delta_mode_Keithley_6221_2182/Delta_RT_K6221_K2182_L350_Sensing_Frontend_v5.py`
-    *   **Backend:** (Internal to Frontend)
 
 #### Mid Resistance (Keithley 2400)
 *   **I-V Sweep**
-    *   **Frontend:** `Keithley_2400/IV_K2400_Frontend_v5.py`
-    *   **Backend:** `Keithley_2400/Backends/IV_K2400_Loop_Backend_v10.py`
 *   **R vs. T (Active Control)**
-    *   **Frontend:** `Keithley_2400/RT_K2400_L350_T_Control_Frontend_v3.py`
-    *   **Backend:** (Internal to Frontend)
 *   **R vs. T (Passive Sensing)**
-    *   **Frontend:** `Keithley_2400/RT_K2400_L350_T_Sensing_Frontend_v4.py`
-    *   **Backend:** (Internal to Frontend)
 
 #### Mid Resistance, High Precision (Keithley 2400 / 2182)
 *   **I-V Sweep**
-    *   **Frontend:** `Keithley_2400_Keithley_2182/IV_K2400_K2182_Frontend_v3.py`
-    *   **Backend:** `Keithley_2400_Keithley_2182/Backends/IV_K2400_K2182_Backend_v1.py`
 *   **R vs. T (Active Control)**
-    *   **Frontend:** `Keithley_2400_Keithley_2182/RT_K2400_K2182_T_Control_Frontend_v3.py`
-    *   **Backend:** (Internal to Frontend)
 *   **R vs. T (Passive Sensing)**
-    *   **Frontend:** `Keithley_2400_Keithley_2182/RT_K2400_2182_L350_T_Sensing_Frontend_v2.py`
-    *   **Backend:** (Internal to Frontend)
 
 #### High Resistance (Keithley 6517B)
 *   **I-V Sweep**
-    *   **Frontend:** `Keithley_6517B/High_Resistance/IV_K6517B_Frontend_v11.py`
-    *   **Backend:** `Keithley_6517B/High_Resistance/Backends/IV_K6517B_Simple_Backend_v10.py`
 *   **R vs. T (Active Control)**
-    *   **Frontend:** `Keithley_6517B/High_Resistance/RT_K6517B_L350_T_Control_Frontend_v13.py`
-    *   **Backend:** `Keithley_6517B/High_Resistance/Backends/IV_K6517B_L350_T_Control_Backend_v6.py`
 *   **R vs. T (Passive Sensing)**
-    *   **Frontend:** `Keithley_6517B/High_Resistance/RT_K6517B_L350_T_Sensing_Frontend_v14.py`
-    *   **Backend:** (Internal to Frontend)
 
 #### Pyroelectric Measurement (Keithley 6517B)
 *   **PyroCurrent vs. T**
-    *   **Frontend:** `Keithley_6517B/Pyroelectricity/Pyroelectric_K6517B_L350_Frontend_v4.py`
-    *   **Backend:** `Keithley_6517B/Pyroelectricity/Backends/Pyroelectric_K6517B_Working_Backend_v10.py`
 
 #### Capacitance (Keysight E4980A)
 *   **C-V Measurement**
-    *   **Frontend:** `LCR_Keysight_E4980A/CV_KE4980A_Frontend_v3.py`
-    *   **Backend:** `LCR_Keysight_E4980A/Backends/CV_KE4980A_Simple_Backend_v10.py`
 
 #### Temperature Utilities (Lakeshore 350)
 *   **Temperature Ramp**
-    *   **Frontend:** `Lakeshore_350_340/T_Control_L350_RangeControl_Frontend_v8.py`
-    *   **Backend:** `Lakeshore_350_340/Backends/T_Control_L350_Simple_Backend_v10.py`
 *   **Temperature Monitor**
-    *   **Frontend:** `Lakeshore_350_340/T_Sensing_L350_Frontend_v4.py`
-    *   **Backend:** (Internal to Frontend)
 
 ---
 
 ## Instrument Specifications
 
-Here is a meticulously verified summary of the key measurement specifications for the instruments used in the PICA project. All values have been cross-referenced with the provided instrument manuals to ensure accuracy.
 PICA supports a range of common laboratory instruments. For a detailed summary of their measurement specifications, please see the Instrument Specifications Guide.
 
-#### Keithley 6221 Current Source + 2182A Nanovoltmeter System (Low Resistance)
-**Primary Use:** High-precision, low-resistance I-V and R-T measurements via **Delta Mode**.
 - **Source-Measure Units:** Keithley 2400, Keithley 6221, Keithley 6517B
 - **Nanovoltmeters:** Keithley 2182A
 - **LCR Meters:** Keysight E4980A
 - **Temperature Controllers:** Lakeshore 340, Lakeshore 350
 
-| Parameter                 | Lower Limit                                       | Higher Limit    | Best Resolution                             |
-| :------------------------ | :------------------------------------------------ | :-------------- | :------------------------------------------ |
-| **Resistance**            | **~10 nΩ** (Practical limit set by system noise)  | **200 MΩ**      | **Derived** (from V/I in Delta Mode)        |
-| **Current Source (6221)**   | **100 fA**                                        | **105 mA**      | **100 fA** (on the 2 nA range)              |
-| **Voltage Measure (2182A)** | **1 nV**                                          | **100 V**       | **1 nV** (on the 10 mV range)               |
 ---
 
-#### Keithley 2400 SourceMeter (Mid-Range Resistance)
-**Primary Use:** Versatile four-probe I-V and R-T measurements for a broad range of materials.
 ## 🚀 Getting Started
 
-| Parameter                      | Lower Limit (Source / Measure) | Higher Limit (Source / Measure) | Best Resolution (Source / Measure)   |
-| :----------------------------- | :----------------------------- | :------------------------------ | :----------------------------------- |
-| **Resistance**                 | **&lt; 0.2 Ω**                    | **&gt; 200 MΩ**                    | **100 µΩ** (on the 20Ω range)        |
-| **Voltage**                    | **5 µV / 1 µV**                | **±210 V / ±210 V**             | **5 µV / 100 nV** (6.5-digit mode) |
-| **Current**                    | **50 pA / 10 pA**              | **±1.05 A / ±1.05 A**           | **50 pA / 10 pA**                    |
-#### Keithley 6517B Electrometer (High Resistance & Pyroelectric)
-**Primary Use:** Characterizing highly insulating materials and measuring pyroelectric currents.
-
-| Parameter                      | Lower Limit                               | Higher Limit                    | Best Resolution                                |
-| :----------------------------- | :---------------------------------------- | :------------------------------ | :--------------------------------------------- |
-| **Resistance**                 | **1 Ω**                                   | **&gt; 10 PΩ** ($10^{16}$ Ω)        | **Derived** (from I-measure)                   |
-| **Current (Pyroelectric)**     | **10 aA** ($10 \times 10^{-18}$ A)         | **20 mA**                       | **10 aA**                                      |
-| **Voltage**                    | **1 µV**                                  | **200 V**                       | **1 µV**                                       |
-| **Charge**                     | **1 fC**                                  | **2 µC**                        | **10 fC**                                      |
-
----
-#### Keysight E4980A Precision LCR Meter (C-V Measurements)
-**Primary Use:** Capacitance-Voltage (C-V) and impedance characterization.
-
-| Parameter            | Lower Limit                                | Higher Limit                               | Best Resolution                            |
-| :------------------- | :----------------------------------------- | :----------------------------------------- | :----------------------------------------- |
-| **Basic Accuracy**   | Varies with conditions                     | Varies with conditions                     | **0.05%** (under optimal conditions)       |
-| **Frequency**        | **20 Hz**                                  | **2 MHz**                                  | **Tiered** (e.g., 0.01 Hz at low freq.)    |
-| **DC Bias**          | **-40 V**                                  | **+40 V**                                  | **0.3 mV** (Requires Option 001)           |
-
----
-
-#### Lake Shore 350 Temperature Controller
-**Primary Use:** Precise temperature control and monitoring for temperature-dependent measurements.
-| Sensor Type      | Lower Temp. Limit | Higher Temp. Limit | Best Resolution (Temp)     | Notes                                      |
-| :--------------- | :---------------- | :----------------- | :------------------------- | :----------------------------------------- |
-| **Diode (DT-670)** | **1.4 K**         | **500 K**          | **&lt; 0.1 mK**               | At cryogenic temperatures                  |
-| **Platinum RTD**   | **14 K**          | **873 K**          | **&lt; 1 mK**                 | At cryogenic temperatures                  |
-
-## Getting Started
-
 ### Prerequisites
 
 1.  **Python:** Python 3.9 or newer is recommended.
 2.  **NI-VISA Driver:** You must install the [National Instruments VISA Driver](https://www.ni.com/en/support/downloads/drivers/download.ni-visa.html) for your operating system. This is required for Python's `pyvisa` library to communicate with the instruments.
 
 ### Installation Steps
-h
 
 1.  **Clone the Repository**
     git clone https://github.com/prathameshnium/PICA-Python-Instrument-Control-and-Automation.git
@@ -268,77 +168,14 @@ h
 
 ---
 
-## Extending PICA: Adding a New Module
 ## 🛠️ Extending PICA: Adding a New Module
 
 The modular architecture makes it straightforward to add support for new instruments or measurement types. Here is a simplified example of the required structure.
 
-#### 1. Create a Backend Class
 1.  **Create a Backend Class:** Encapsulate all direct instrument communication (`PyVISA` commands) in a dedicated class.
 2.  **Create a Frontend GUI:** Build a `Tkinter` GUI to gather user parameters and display live data. This GUI will instantiate and control the backend.
 3.  **Integrate with the Launcher:** Add a button and the script path to `PICA_v6.py` to make your new module accessible from the main dashboard.
 
-The backend class handles all direct communication with the instrument.
-
-```python
-# In a file like "MyInstrument/Backend.py"
-import pyvisa
-import time
-
-class MyInstrument_Backend:
-    def __init__(self):
-        self.instrument = None
-        self.rm = pyvisa.ResourceManager()
-
-    def connect(self, visa_address):
-        self.instrument = self.rm.open_resource(visa_address)
-        print(f"Connected to: {self.instrument.query('*IDN?')}")
-
-    def configure(self, voltage):
-        self.instrument.write(f":SOURCE:VOLTAGE {voltage}")
-        self.instrument.write(":OUTPUT ON")
-
-    def measure(self):
-        current = self.instrument.query(":READ?")
-        return float(current)
-
-    def disconnect(self):
-        if self.instrument:
-            self.instrument.write(":OUTPUT OFF")
-            self.instrument.close()
-```
-
-#### 2. Create a Frontend GUI
-
-The frontend provides the user interface and manages the measurement loop in a separate thread.
-
-```python
-# In a file like "MyInstrument/Frontend.py"
-import tkinter as tk
-from threading import Thread
-from MyInstrument.Backend import MyInstrument_Backend
-
-class MyInstrument_GUI(tk.Frame):
-    def __init__(self, master=None):
-        super().__init__(master)
-        self.backend = MyInstrument_Backend()
-        # ... (GUI widget setup: entries, buttons, plots) ...
-
-    def start_measurement(self):
-        # This method runs in a new thread to keep the GUI responsive
-        self.backend.connect("GPIB0::1::INSTR")
-        self.backend.configure(voltage=1.5)
-        for _ in range(100):
-            current = self.backend.measure()
-            # Use a queue to send data back to the GUI for plotting
-            # ...
-        self.backend.disconnect()
-```
-
-#### 3. Integrate with the PICA Launcher
-
-Finally, add the path to your new frontend script in `PICA_v6.py` and `Setup/Picachu.py` to make it accessible from the main dashboard.
-
 ---
 
 ## Resources & Documentation
@@ -351,7 +188,6 @@ For a quick reference on instrument addresses, see the `GPIB_Address_Guide.md` f
 
 ---
 
-## 🤝 Contributing
 ## 🤝 How to Contribute
 Contributions are welcome! If you have suggestions for improvements or want to add a new instrument module, please feel free to:
 1.  Fork the repository.
