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  1. darren adcock

    volume/frequency activated gates/triggers

    Hi all, I've been asked to make a device which allows a rapper to produce gates/triggers to interface with midi equipment. After an initial discussion we decided that we could use certain or a series of volume and frequency windows which would activate the gates/triggers. This would all be...
  2. darren adcock

    4 Pin Mini DIN Right Angled Plug - where to buy?

    maybe i'm missunderstanding what you are after, a quick ebay search.... https://www.ebay.co.uk/i/123132271474?chn=ps And one that looks a bit more substantial. https://www.avionstudios.com/rhodes/rhodes-peterson-4-pin-din-right-angle-male
  3. darren adcock

    4 Pin Mini DIN Right Angled Plug - where to buy?

    maybe this helps. https://derbyelectronics.com/product/4-pin-din-connector/
  4. darren adcock

    Testing Salvaged Motors

    Thanks Hop
  5. darren adcock

    Testing Salvaged Motors

    As promised here's a small video of the prototype module and synced motor, just tied a zip tie to the shaft for demonstration here. When I have the full system and built mechanical sound sculptures made I'll share that. But anyhow it works, cheers for helping, I'm not foreseeing many problems...
  6. darren adcock

    Testing Salvaged Motors

    Or the more i think about it, the cv signals don't need the ground to go with them? I remember looking into if i could have built my modular system with Banana plugs and sockets and it was doable, older modular's had banana plugs and sockets. So maybe these signal ground paths are unnecessary?
  7. darren adcock

    Run a motor using pir sesnor without arduino

    Hi Jack. Try looking for a PIR activated relay circuit. The relay will act as a switch to turn on and off power to your motor (depending on how you are driving the motor), however we don't know what motor, or what is a reasonable speed, or the function of the motor. Hope that helps. Others can...
  8. darren adcock

    Testing Salvaged Motors

    Hi, so completely baffled by grounding, or maybe I've just read too much and am a bit overwhelmed by information. Anyhow, I endeavored to draw a block diagram of how I have it connected now and how Intend on having connected eventually when built. Hope the diagrams make sense, MS paint an all...
  9. darren adcock

    Testing Salvaged Motors

    Cheers Hop, Identifying the problem is a huge help. Yeah, yesterday was a long day of which mostly felt like I was chasing my own tail, certainly frustrating but good to learn on the fly. First thing I'll do today is make a block diagram of how the system is connected now and how I intend on...
  10. darren adcock

    Testing Salvaged Motors

    OK after more tinkering and reading (definitely don't understand it all) but managed to get rid off all high frequencies being audible through my sound system (whether this would be different with a louder sound system i'm unsure), only thing that is left is a low chopping type sound. Here is...
  11. darren adcock

    Testing Salvaged Motors

    I made some adjustments to the circuit after looking at various websites which have seemed to help. Mainly I was looking at decoupling articles. http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html, do I need to add a choke as in the last example of the article? -A 1000uf electrolytic across...
  12. darren adcock

    Testing Salvaged Motors

    Hey, that all worked much better thanks with a really detailed response. When i work out how to transfer video from an iphone 4 via bluetooth to my computer I'll post a video, most likely tonight when i get back to where my USB cable is. I'm getting a lot of interference from the circuit to my...
  13. darren adcock

    Testing Salvaged Motors

    Thanks Hop. I will do as you suggest today and report back later on.
  14. darren adcock

    Testing Salvaged Motors

    More testing today and an overhaul of schematic, essentially getting rid of second 555 timer and adding a Low pass filter (I expect I've got this wrong). I added the filter as the motor was making a screaming sound and was also amplified through some of the synths modules, mainly the wave...
  15. darren adcock

    Testing Salvaged Motors

    Ok thanks.
  16. darren adcock

    Peak detector for piezo drum pad

    I'm interested in this discussion as I use piezo's quite a lot. Can't help too much as this circuit is new to me. The same circuit seems to be a little way down on this article from DIGIKEY with component spec's...
  17. darren adcock

    Testing Salvaged Motors

    Here is the full schematic of what I have bread boarded. A couple problems I am having; -Can't seem to get more than 3.2v at on the emitter of TIP120, maybe the motor should go between +12v and Collector? -This next problem may well because of placing the motor in the wrong place. There seems...
  18. darren adcock

    Testing Salvaged Motors

    Rather than me posting a big clumsy circuit I'm going post each section at a time, as it will make correcting much easier. Here is the intial clock circuit. My LFO at max range reads at 264 Hz so I tried to get as close 3KHZ as possible, but didn't have a 51k resistor for R2, as specified via an...
  19. darren adcock

    Testing Salvaged Motors

    Hey Hop. Effect was probably lazy wording, easily get overwhelmed by information, anyhow the "effect" is simply to have the motors work in time with the synthesiser. In terms of the having the LFO's modulate the synth and at the same time control motors, hopefully extend this to all modulating...
  20. darren adcock

    Testing Salvaged Motors

    Cheers Hop. In terms of not using the MOSFETS or BJT's in linear mode; It appears that I am, for example I am using various low frequency control voltage wave forms from my synthesizer via a buffer to drive a motor via a TIP120. With varying results to be fair, depending on motor and load. I'll...
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