FIELD NOTES
Get better at hardware test.
Guides, tutorials, and best practices to help you build better hardware tests.
- Scaling & Monitoring
Multi-Site Test Data Management
Learn how to manage hardware test data across multiple manufacturing sites and test locations using TofuPilot's centralized platform.
- Test Types & Methods
How to Reduce Field Returns with Test Data
Learn how to catch marginal units before they ship by adding margin tests and stress phases in OpenHTF, then correlating field failures in TofuPilot.
- Test Types & Methods
What Is Functional Testing for Hardware
Functional testing validates that hardware behaves correctly as a complete system. Learn the difference from ICT, how to build functional tests in Python.
- Concepts & Methodology
What Is Predictive Quality in Mfg Test
Predictive quality uses production data to catch defects before they happen. Learn how it works, what data it needs, and how test results feed prediction.
- Migrating from Legacy Systems
Open Source Test Executive Alternatives
Compare open source test executives for manufacturing: OpenHTF, OpenTAP, pytest, and HardPy. Features, operator UI, cost, and when to use each.
- Instrument Control
How to Control a Keysight DMM in Python
Connect a Keysight 34461A or 34465A DMM to Python using PyVISA, measure voltage, current, and resistance, and log results to TofuPilot via an OpenHTF plug.
- 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
A comparison of manufacturing test frameworks (OpenHTF, pytest, OpenTAP, TestStand) with code examples, feature matrices, cost analysis, and guidance on.
- 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.
