jp3141

AppleWatchAmmeter. Turn your Apple Watch into an ammeter to measure DC currents

KindleThermometer. Kindle Thermometer & Web server

60Hz. Measure and record 60 Hz power line frequency using GPS 1 pps as a reference

Vector-Network-Analyzer. Use a Rigol DS1054Z Oscilloscope and Siglent SDG1025 Function Generator as a Vector Network Analyzer

rotary_dialer. Use old telephone rotary dial as a USB numeric keypad; includes 3-D printer files and Teensy Arduono code.