electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
Live streaming at radio.electro-music.com

  host / artist show at your time
  PHOBoS music from project "droning" by Louigi Verona

poster

Please visit the chat
 Forum index » DIY Hardware and Software » Circuit Bending
Triggering Delay/Loop Pedal With Logic Chip?
Post new topic   Reply to topic Moderators: dnny, v-un-v
Page 1 of 1 [3 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
samp



Joined: Oct 15, 2016
Posts: 10
Location: Australia

PostPosted: Yesterday, at 6:15 am    Post subject:  Triggering Delay/Loop Pedal With Logic Chip? Reply with quote  Mark this post and the followings unread

Hi,

Just wondering how I would go about automatically triggering a momentary pushbutton within a guitar pedal(Behringer DD100) by using a CMOS chip.

I would like to connect a logic oscillator to the pushbutton to control its on-off state. Could the chip's digital +9V output be enough to turn it on, or would I need a transistor for the switching?

Thanks for any help!
Back to top
View user's profile Send private message
JovianPyx



Joined: Nov 20, 2007
Posts: 1441
Location: West Red Spot, Jupiter
Audio files: 173

PostPosted: Yesterday, at 10:47 am    Post subject: Re: Triggering Delay/Loop Pedal With Logic Chip? Reply with quote  Mark this post and the followings unread

samp wrote:
Hi,

Just wondering how I would go about automatically triggering a momentary pushbutton within a guitar pedal(Behringer DD100) by using a CMOS chip.

I would like to connect a logic oscillator to the pushbutton to control its on-off state. Could the chip's digital +9V output be enough to turn it on, or would I need a transistor for the switching?

Thanks for any help!


I am assuming the pushbutton is SPST. If so, one gate from a 4066 or 4016 with the gate pass-through terminals connected in parallel with the switch might do it. When the 4066 pass-through gate is not "closed", the pedal will still work with the pushbutton.

_________________
FPGA, dsPIC and Fatman Synth Stuff

Time flies like a banana.
Fruit flies when you're having fun.
BTW, Do these genes make my ass look fat?
corruptio optimi pessima
Back to top
View user's profile Send private message Visit poster's website
PHOBoS



Joined: Jan 14, 2010
Posts: 3119
Location: Moon Base
Audio files: 506

PostPosted: Yesterday, at 3:08 pm    Post subject: Reply with quote  Mark this post and the followings unread

4016 or 4066 as scott mentioned will probably be your best bet and work in most cases. There are other options
which could be preferable because you wouldn't need a whole chip but it depends on how the switch is connected.
If it connects to GND then a single transistor will do or even the output from a logic gate directly with a diode in series.

_________________
"My perf, it's full of holes!"
http://phobos.000space.com/ http://www.acidtrash.com/ Stickney Synthyards
Back to top
View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger MSN Messenger
Display posts from previous:   
Post new topic   Reply to topic Moderators: dnny, v-un-v
Page 1 of 1 [3 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Circuit Bending
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use