Project notes / 01
BenchStack
A modular bench-test instrument stack, starting with a programmable power supply node that can be controlled, measured, and understood from a desktop app.
The question
Can a small, open instrument stack make electronics work feel more direct? BenchStack is an answer in progress: ESP32-S3 nodes speak a small SCPI-like protocol over USB, while a Python application handles connection, control, live telemetry, plotting, and CSV logging.
The first node
0–10 V output, 1 A current limit, and a switchable metered 5 V USB port. The supply reports input and output measurements so power dissipation and efficiency stay visible during a test.
Driver, simulator, firmware, and desktop control panel are in place. The next steps are the Raspberry Pi master, more instrument nodes, and a practical enclosure.