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60Hz Public
Measure and record 60 Hz power line frequency using GPS 1 pps as a reference
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AppleWatchAmmeter Public
Turn your Apple Watch into an ammeter to measure DC currents
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rotary_dialer Public
Use old telephone rotary dial as a USB numeric keypad; includes 3-D printer files and Teensy Arduono code.
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Vector-Network-Analyzer Public
Use a Rigol DS1054Z Oscilloscope and Siglent SDG1025 Function Generator as a Vector Network Analyzer