FIELD NOTES
Get better at hardware test.
Guides, tutorials, and best practices to help you build better hardware tests.
- Compliance & Traceability
Test Traceability for Aerospace (AS9100)
Map AS9100 quality management requirements to TofuPilot features for test records, serial tracking, measurement history, and audit-ready exports.
- Getting Started
How to Build a Test Sequencer in Python
Learn how to build a test sequencer with OpenHTF using phase ordering, skip logic, PhaseGroups, multi-SKU sequences, and TofuPilot result logging.
- 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.
- Concepts & Methodology
What Is Generative Test Design
Generative test design uses AI to create test plans, scripts, and measurement strategies from product specifications. Learn where it works today and where.
- Getting Started
Handle Test Failures and Retries
Learn how to control OpenHTF phase failure behavior, implement retry logic, and ensure clean teardown in production tests with TofuPilot.
- Test Types & Methods
What Is Ongoing Reliability Testing (ORT)
Ongoing reliability testing (ORT) samples production units to catch reliability drift. Learn how ORT works and how to track it with TofuPilot.
- Test Types & Methods
Track Battery Cycling Test Data
Learn how to log charge/discharge cycling data, track capacity fade, and monitor cell performance across production using TofuPilot.
- Migrating from Legacy Systems
TestStand Alternatives for Manufacturing Test
Compare open-source and commercial alternatives to NI TestStand for manufacturing test, with code examples, cost analysis, and criteria for OpenHTF.
- Migrating from Legacy Systems
Where to Store Production Test Results
Test results scattered across spreadsheets and shared folders stop working at a predictable point. Here is when to move, and what to move to.
- Migrating from Legacy Systems
OpenHTF vs NI TestStand for Manufacturing Test
Compare OpenHTF and NI TestStand for manufacturing test automation, with feature matrices, code examples, cost analysis, and database integration differences.
