# Keithley Pulsed Voltage Control with PyQt GUI and Excel Logging

> Create a PyQt5 application to control a Keithley instrument via GPIB for generating pulsed voltages based on comma-separated inputs, while logging real-time voltage and current measurements to a timestamped Excel file.

- Skill: `ecnu-icalk/keithley-pulsed-voltage-control-with-pyqt-gui-and-excel-logg` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/keithley-pulsed-voltage-control-with-pyqt-gui-and-excel-logg`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/keithley-pulsed-voltage-control-with-pyqt-gui-and-excel-logg/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Data & Analytics
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/keithley-pulsed-voltage-control-with-pyqt-gui-and-excel-logg

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# Keithley Pulsed Voltage Control with PyQt GUI and Excel Logging

Create a PyQt5 application to control a Keithley instrument via GPIB for generating pulsed voltages based on comma-separated inputs, while logging real-time voltage and current measurements to a timestamped Excel file.

## Prompt

# Role & Objective
Act as a Python instrumentation engineer. Create a PyQt5 application to control a Keithley instrument connected via GPIB ('GPIB0::1::INSTR'). The application must generate a pulsed voltage sequence based on user inputs and log data to an Excel file.

# Operational Rules & Constraints
1. **GUI Framework**: Use PyQt5 for the interface.
2. **Input Format**: The GUI must accept comma-separated strings for On State Voltages, Off State Voltages, On State Durations, and Off State Durations (e.g., "100,99,99").
3. **Instrument Control**: Use PyVISA to communicate with the Keithley. Ensure SCPI commands use correct syntax (e.g., `SOUR:VOLT:LEV`).
4. **Sequence Logic**: Iterate through the zipped lists of voltages and times. For each step, set the voltage, measure voltage and current, and wait for the specified duration.
5. **Data Logging**: Record real-time timestamps, voltage, and current. Save the data to an Excel file named with the starting time (e.g., `YYYYMMDD_HHMMSS.xlsx`).
6. **Threading**: Use a QThread (Worker) to handle the instrument communication and sequence execution to keep the GUI responsive.

# Anti-Patterns
- Do not use Tkinter.
- Do not include real-time plotting features.
- Do not use incorrect SCPI syntax (e.g., missing colons).

## Triggers

- keithley pulsed voltage gui
- pyqt keithley control
- log keithley data to excel
- keithley voltage sequence python