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Arduino: second verse, same as first… sort of

Posted on November 10, 2011March 6, 2012 by abram

well, not really. feeble attempt and making some sort of microprocessor controlled tempo clock, but a good exercise in the ATMEGA328s finicky behavior. don’t ask me what that squeal is. i think it comes from the way the input was wired up (mistaking the second sleeve as a synonym for ground) coupled with the PWM stream not having a negative offset, but who knows. eventually, i’ll move off the tone() crutch and start working with more interesting DSP. it’ll be nice to start using some of the memory on the chip.

i will also post the schematic for the delay pedal once i’ve got the values i want in it. i won’t have any time nor tools to tear into it until next week though.

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about

Abram Morphew is an electrical engineer, bedroom musician, composer, naturalist, and amateur scientist. I play music in the the binary marketing show. This blog is a catalog of stuff that I make or bits of information that I think could prove useful later on when memory fails me.

 

I currently hold an Extra Class Amateur Radio Operator license and transmit on the air as K2NXF.

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40m amp amplifier Arduino atmega328 atmel audio bash bjt breadboard circuit code cw delay digital effect effects electrical electronics homebrew lfo linux LM386 mellotronium music no. 5 opamp oscillator pcb pedal photos php pt2399 pwm radio rf schematic stereo stompbox synth tape TDA2040 tl072 TL082 tube

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