FIELD NOTES
Get better at hardware test.
Guides, tutorials, and best practices to help you build better hardware tests.
- Instrument Control
How to Control a Keysight DMM in Python
Control a Keysight 34461A or 34465A from Python: SCPI setup, NPLC and range selection, four-wire resistance, and recording readings as measurements.
- Concepts & Methodology
What Is an AI-Native Test Station
An AI-native test station is built around data and inference from the start, not bolted on after. Learn what it means and how it changes manufacturing test.
- Migrating from Legacy Systems
Manufacturing Test Frameworks Compared
Compare TofuPilot Framework, OpenHTF, pytest, OpenTAP and NI TestStand for manufacturing test, with real code, feature matrix and cost analysis.
- Scaling & Monitoring
What Is OEE for Test Stations
Overall equipment effectiveness (OEE) measures manufacturing productivity. Learn how to calculate OEE for test stations and track it with TofuPilot.
- Concepts & Methodology
What Is a Continuous Test Stack
A continuous test stack connects test development, execution, data collection, and analytics into one integrated workflow. Learn what it includes and how.
- Concepts & Methodology
Root Cause Analysis for Hardware Test Failures
Learn how to use TofuPilot's test data to trace hardware failures back to their root cause using measurement trends and run comparisons.
- Scaling & Monitoring
How to Manage NPI Test Data
Structure your test procedures across EVT, DVT, and PVT phases. Refine measurement limits using early data and track procedure versions as your product matures.
- Compliance & Traceability
Test Traceability for Aerospace (AS9100)
Build AS9100 test traceability for aerospace: what records auditors ask for, and how to capture them automatically with a TofuPilot procedure.
- Getting Started
How to Build a Test Sequencer in Python
Build a test sequencer in Python, or use one that exists. What a sequencer must handle, and why hand-rolling it usually costs more than it saves.
- Concepts & Methodology
What Is a Test Copilot
A test copilot is an AI assistant that helps engineers write tests, analyze failures, and optimize limits. Learn what it does and where the technology is.
- Test Data & Analytics
The True Cost of Poor Quality in Electronics
Understand COPQ categories, the 1-10-100 rule for defect costs, and how proper test coverage with TofuPilot catches issues before they become expensive.
- Test Station Setup
Run Parallel Tests on Multiple DUTs
Learn how to run independent OpenHTF test instances in parallel across multiple DUTs using Python multiprocessing, with per-DUT result logging to TofuPilot.
