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Bananaphone: A Touch Capacitance Synth

Aw hell yeah, Bananaphone!

I was recently inspired by a Kickstart project which used Bananas as sensors to control a video game on a PC.  I’ve done some video game controls using the Propeller in the past, but I thought this would make an interesting synthesizer project.

Window-154

Parallax Propeller Quickstart USB Development Board. The QuickStart is an evaluation board for the 8-Core Parallax Propeller. As an open-source reference design the QuickStart board provides basic Propeller circuitry. Developers may use our PCB layout files as their own to speed their project towards completion. As a project board the QuickStart is fully expandable and provides unimpeded access to all I/O pins through an expansion header but includes some button inputs and LEDs to demonstrate programming. With USB power and a selection of QuickStart Project examples it’s also the fastest way to get up and running.

Examples at Parallax Semiconductor:

Features:

  • Open hardware reference design through our Altium and DipTrace PCB layout files (more export options may be possible)
  • Bus-powered USB coupled with 3.3V regulator for 500 mA
  • 5 mHz cyrstal on board may be disabled by removing SMT jumper, allowing replacement with external through-hole crystal
  • 64KB EEPROM (32K for P8X32A program, 32K for general-purpose use)
  • External brownout reset may be installed by removing SMT jumper
  • (8) blue LEDs on P16-P23
  • (8) resistive touch-buttons on P0-P7
  • Pads for sigma-delta A/D circuitry (two resistors and two capacitors, both 0603) for using the Sigma-Delta A/D AppNote
  • Expansion header provides access to Vss, Vdd, 32 I/O pins (28 for any use, 2 are I2C bus, and two are optional Tx/Rx if connected to USB power)
  • Measures 2″ x 3″ (5.1 cm x 7.6 cm)

This board doesn’t come with a mini-B USB cable or bumpers, but we stock them in the shop so you may want to pick those up.

In stock and Propelling now!


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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2 Comments

  1. http://t.co/RZwwWsxl

  2. Ring ring ring ring ring ring ring… Bananaphone!

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