Green Shoe Garage est. 2012
FI Field Instruments · Energy Toolkit
A toolkit of single-file field instruments for building energy and measurement work. Each one runs offline in any modern browser, no build step, no accounts. Source on GitHub under GPL-3.0.
01
A single-file, browser-based building energy audit pad for energy managers and professional engineers. Eleven modules cover retrofit economics, EUI benchmarking, blower-door and demand-charge math, NEC service-load and thermal-load calculations, and ASHRAE 90.1 navigation, all offline. Field Instrument 045.
02
A compliance checklist that tests a building design against the prescriptive provisions of ASHRAE Standard 90.1 and produces a stamped checklist certifying conformance. The natural downstream of Wattmeter: import a Wattmeter project and the lighting, envelope, building, and climate data pre-populate the checklist, ready for review and the stamp.
03
The workbook a testing and balancing technician fills out, equipment by equipment, while balancing a commercial HVAC system. It captures design intent from the mechanical drawings, records initial, adjusted, and final readings, checks them against design through configurable tolerance bands, and produces a printable TAB report. Named for the pitot tube, the bent pipe that reads the speed of moving air.
04
A logbook for sensor and instrument calibration. Keep the as-found and as-left readings, the reference standard, and the tolerance all in one place. Named for Pierre Vernier's seventeenth-century auxiliary scale, the mechanism that lets a calibrated instrument be read right to its tolerance.
05
A local-first instrument for discovering, decoding, verifying, monitoring, and analyzing the passive RF broadcasts from utility water meters with an RTL-SDR. The workflow runs identify, discover, decode, verify, monitor.
06
An automatic meter reading bench. It finds the utility meter that belongs to you, proves the signal is really there, works out which protocol and which format mask make the arithmetic come out right, validates the path to your MQTT broker, and then writes the configuration a daemon needs to read that meter unattended forever. A curb stop is the valve box at the property line, the exact boundary between the utility and you. That is where this sits.
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Concept to delivered product. Mechanical, electronics, and software, built under one roof. Quickly and within budget.
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