If/then statement. If button is pushed (1/high) then read potentiometer A. If button is not pushed (0/low) read value of tap tempo. I need a better understanding of how to combine the three example codes I have worked on. With that I can begin to really work on the gating programming circuit I’ve been trying/failing to build with arduino.
intermediate.texts
james.n.murray
I’m back to using an arduino to control the behavior of my gating circuit. It’s cleaner, less wires, fewer issues and can be programmed quickly to alter behavior.
Also, I rather stupidly stripped my wires for the current IC based circuit using snips… and have found that the wires I used are unlikely to hold up to the test of time. I’m looking at seeing how much of this circuit can be etched onto a board. I’d really like to see my process move in that direction. Since it’s cleaner, more durable and more likely to not have wiring/consistency of performance issues.
I also found a site that will allow me to power my USB specific freeduino board through the USB hookup using a 9 volt battery. This is huge since I have little to no interest in having to power this off of my computer when performing…. This way I have a standalone unit with all of the power arduino backing it up.
Arduino Update for 8 step sequencer/phaser/gating
This is the 8 step sequencer that I’ve been working on. It’s been a little slow going, testing a variety of LEDs, photo-resistors and other components, but last night it started to come together. I’ve had issues with getting both the control and indicator LED to pulse together and without issue…. something that was solved through using a series of diodes in the circuitry between the IC and the final two LEDs.
Tonight will consist of wiring the rest of the indicator LEDs and wiring both the control LED and the audio line.
In the end this project will gate audio on and off in an 8 step sequence. This is accomplished by connecting a control LED to a photo resistor that splits the audio line input. When a light turns on the audio is passed through, when the light is off, the audio stops. With an 8 step pulse chain there is the possibility of beginning to build more and more complex rhythmic patterns. I’ve got a reset button on the surface so that the pattern can automatically be reset to step 1 of the sequence, though we will see if that helps with beat matching. In any case, more photos tonight or tomorrow and hopefully a little bit of video as well.