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Digital IR theremin

Posted on Thursday, December 13th, 2012 in infrared by the machinegeek


Chris from Pyroelectro developed this all-digital-hardware Theremin. He descibes, “The Digital IR Theremin uses comparators, digital logic, and a single 555 timer for tone generation. When you wave your hand in front of the infrared proximity sensor, it outputs a tone with varying pitch depending on how far away your hand is from the sensor!”

The BOM includes a 7805 +5v regulator, four LM339 Quad Comparators, two 7408 Dual And Gates, a 555 Timer, IR proximity sensor, eight 2N2222 Transistors and a handful of resistors, capacitors and miscellaneous supporting components. For more details and photos visit Pyroelectro.

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This entry was posted on Thursday, December 13th, 2012 at 12:01 am and is filed under infrared. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • jeanmarc78: May be a free pcb for me :)
  • Jeff Tee: Still in the race?
  • Barry: Maybe not to late Need new project Free PCB Sunday
  • Sorin: I'll like one. Will save some time in producing myself.and your might have a better quality.. next project bus pirate!!!
  • Larry Couvillion: Please oh please oh pretty please!!!!