{"product_id":"interactive-ultrasonic-theremin","title":"Interactive Ultrasonic Theremin","description":"\u003cp\u003eThe Interactive Ultrasonic Theremin is a fun STEM project that combines ultrasonic distance sensing, programmable sound generation, embedded programming and 3D printing into one engaging interactive build. Instead of pressing traditional keys or buttons, the instrument responds naturally to hand movement, allowing users to play musical notes by simply changing the distance between their hand and the ultrasonic sensor.\u003c\/p\u003e\n\u003cp\u003eUsing a Kypruino board, an HC-SR04 ultrasonic sensor and a potentiometer, the theremin detects hand position to generate musical notes through the Kypruino's built in buzzer. The potentiometer adjusts the depth of a vibrato effect, creating a more expressive playing experience while demonstrating how sensor data can be converted into real time sound.\u003c\/p\u003e\n\u003cp\u003eDesigned for makers, students and educators, this project introduces key engineering concepts including ultrasonic distance measurement, analog input reading, musical note mapping, sound generation, signal filtering, embedded programming and 3D printing. The custom 3D printed spherical enclosure transforms the electronics into a compact musical instrument while showcasing how hardware, software and digital fabrication can come together to create an innovative STEM project.\u003c\/p\u003e\n\u003cp\u003ePerfect for makers, students, classrooms, workshops and STEM education.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGesture Controlled Musical Instrument:\u003c\/strong\u003e Play musical notes by simply moving your hand in front of the ultrasonic sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Vibrato Effect:\u003c\/strong\u003e Use the potentiometer to control the vibrato depth and create more expressive musical tones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHC-SR04 Ultrasonic Sensor:\u003c\/strong\u003e Learn how ultrasonic distance measurement can be used as a real time input device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeginner Friendly:\u003c\/strong\u003e Explore sound generation, sensors, embedded programming and 3D printing through a hands on project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTEM Learning Project:\u003c\/strong\u003e Combines coding, sensor integration, music technology and digital fabrication into one engaging build.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProject Type:\u003c\/strong\u003e Interactive Ultrasonic Theremin \u0026amp; 3D Printing Design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Board:\u003c\/strong\u003e Kypruino or Arduino Compatible Board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistance Sensor:\u003c\/strong\u003e Ultrasonic Sensor HC-SR04.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Input:\u003c\/strong\u003e 10K Rotary Potentiometer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Output:\u003c\/strong\u003e Buzzer (onboard on Kypruino).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e Digital \u0026amp; Analog I\/O.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Output:\u003c\/strong\u003e Buzzer (D9).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltrasonic Sensor:\u003c\/strong\u003e TRIG (D4), ECHO (D5), Vcc (5V), GND (GND).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotentiometer:\u003c\/strong\u003e OUT (A0), VCC (5V), GND (GND).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e USB Type C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell Type:\u003c\/strong\u003e 3D Printed Spherical Theremin Enclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Gesture controlled sound generation, chromatic note mapping, adjustable vibrato, signal filtering and programmable musical effects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e STEM education, coding, electronics, music technology, sensor projects, embedded systems and 3D printing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTheremin Dimensions:\u003c\/strong\u003e ~108×117mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Weight:\u003c\/strong\u003e ~120g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eComplete Kit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x \u003ca href=\"https:\/\/robo.com.cy\/collections\/arduino\/products\/kypruino-uno-v0-8\" rel=\"noopener\" target=\"_blank\"\u003eKypruino Compatible Board\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e1x \u003ca href=\"https:\/\/robo.com.cy\/collections\/sensors\/products\/ultrasonic-sensor\" rel=\"noopener\" target=\"_blank\"\u003eUltrasonic Sensor HC-SR04\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e1x \u003ca href=\"https:\/\/robo.com.cy\/collections\/modules\/products\/10k-resistor-potentiometer-module\" rel=\"noopener\" target=\"_blank\"\u003e10K Potentiometer Module\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e7x \u003ca href=\"https:\/\/robo.com.cy\/collections\/cables-wires\/products\/copy-of-dupont-wires-kit-20cm-30pcs\" rel=\"noopener\" target=\"_blank\"\u003eMale to Female Dupont Wires\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e1x \u003ca href=\"https:\/\/robo.com.cy\/collections\/cables-wires\/products\/usb-type-c-cable-98cm-usb-a-to-usb-c\" rel=\"noopener\" target=\"_blank\"\u003eUSB Type C Cable\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e1x 3D Printed Spherical Theremin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e🎵 Interactive music and sound projects.\u003c\/li\u003e\n\u003cli\u003e📏 Ultrasonic sensing and gesture controlled applications.\u003c\/li\u003e\n\u003cli\u003e🤖 Electronics and embedded programming.\u003c\/li\u003e\n\u003cli\u003e🔊 Sound feedback projects.\u003c\/li\u003e\n\u003cli\u003e🎓 Arduino \u0026amp; STEM education projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpherical Theremin color may vary slightly from the images shown.\u003c\/li\u003e\n\u003cli\u003eRequires basic assembly and Arduino IDE programming.\u003c\/li\u003e\n\u003cli\u003eUSB Type C cable is required for programming and power.\u003c\/li\u003e\n\u003cli\u003eThe code can be customized to modify the musical scale, playable range, vibrato effect and sound behaviour.\u003c\/li\u003e\n\u003cli\u003eFull project instructions, wiring diagram, source code and 3D printing files are available on our Blog.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBO CY","offers":[{"title":"Complete Project Kit","offer_id":57031563411780,"sku":null,"price":54.98,"currency_code":"EUR","in_stock":true},{"title":"3D Printed Design Kit","offer_id":57031563444548,"sku":null,"price":7.99,"currency_code":"EUR","in_stock":true},{"title":"Electronics Kit","offer_id":57031563477316,"sku":null,"price":46.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0043\/7154\/6227\/files\/Interactive_Ultrasonic_Theremin_Complete.jpg?v=1784796393","url":"https:\/\/robo.com.cy\/en-in\/products\/interactive-ultrasonic-theremin","provider":"ROBO CY","version":"1.0","type":"link"}