Hi,
Recently i had two pretty cool ideas, after seeing that the sound hack contest was open on instructables.
The first was a touch wire keyboard, essentially consisting of a wire used one way or another, to alter the frequency of a 555 timer, to give a single matrix keyboard effect, i was inspired by this idea after finding an amusing 555 based pcb keyboard kit, though already built, in which you could use a grounding wire on each pcb printed key, to play various tones through 555 timers set up to sound like organs. i then discovered though that i could play the keyboard simply by holding the probe in the same hand, and using my fingers instead.
This inspired me to try out something, a wrist mounted oscillator, which plays a tone based on body resistance!
essentially, it would have a contact touching ones wrist, and another on the persons fingertips, and from there depending on the resistance between the wrist and the contacted area of the body, it would play a specific tone. Two used in conjunction with one another , along with resistors on each fingertip, could actually create something capable of playing basic music.
What i wanted to ask however was, the viability of this idea?
Would a 555 timer be capable of changing the frequency based on the bodies resistances, or would i need to use something a little different, that utilizes high voltages to test resistance?
What would i need in order to get this device to function? but everything being entirely on the wrist and hand and nowhere else?
Recently i had two pretty cool ideas, after seeing that the sound hack contest was open on instructables.
The first was a touch wire keyboard, essentially consisting of a wire used one way or another, to alter the frequency of a 555 timer, to give a single matrix keyboard effect, i was inspired by this idea after finding an amusing 555 based pcb keyboard kit, though already built, in which you could use a grounding wire on each pcb printed key, to play various tones through 555 timers set up to sound like organs. i then discovered though that i could play the keyboard simply by holding the probe in the same hand, and using my fingers instead.
This inspired me to try out something, a wrist mounted oscillator, which plays a tone based on body resistance!
essentially, it would have a contact touching ones wrist, and another on the persons fingertips, and from there depending on the resistance between the wrist and the contacted area of the body, it would play a specific tone. Two used in conjunction with one another , along with resistors on each fingertip, could actually create something capable of playing basic music.
What i wanted to ask however was, the viability of this idea?
Would a 555 timer be capable of changing the frequency based on the bodies resistances, or would i need to use something a little different, that utilizes high voltages to test resistance?
What would i need in order to get this device to function? but everything being entirely on the wrist and hand and nowhere else?