About All the sewing diagrams, hardware layout, and code needed to build your own Space Invader, Sound Sensor, and Xbee Buzzer E-Textiles projects.
Next-generation upgrade to Michael Fenton's ultra-low-cost open-source project that connects Casio FX-9750 and FX-9860 graphing calculators to Picaxe, ESP8266, and ESP32 microcontroller sensor units.
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