Available Automatic Switching/ Relay Solutions

[Pauleo1214]

This may be a dumb question but say I have a PCB with pads for switches but I want to automate the switching. Are there any boards out there that can alternate between engaging two switches?

I made a crude graphic to illustrate what I want to do. Are there any automatic relays that can be controlled for duration of switching? For instance, say I want to the relay to open switch A for a duration of 3 seconds and then open switch B for 3 seconds and repeat? If there aren't any solutions, does anybody know of any resources I may study to accomplish this? Thank you all!

 

[Feral Feline]

Check out Nightfire Electronics, they've got this:

Timer with Adjustable ON & OFF Times, 12v Relay (#5507) | NightFire Electronics LLC

vakits.com

Other stuff there may suit, if the linked relay isn't quite the right dealio.

 

[phi1]

Hmm I’m not sure I would use relay for this continuous back and forth switching.
1. Relays do have a small click sound. No big deal in conjunction with a stomp, but over and over might get annoying
2. Relays are mechanical and as such have a lifespan. (It’s long, you might be fine, but still seems like not the best to me).

Not exactly sure what you’re doing but I would consider using opto-couplers or transistors for switching if possible.

Custom attiny code would probably be easy to implement. I could probably help give some advice toward that if needed

 

[Pauleo1214]

Thanks for your replies!

@phi1 , i was thinking about the Parasit Studios Subspace Transmission Board. Particularlly the recording/playback switch funcitons.

ISD1820 Datasheet | ETC - Datasheetspdf.com

ISD1820 Voice Recorder datasheet pdf provided by Datasheetspdf.com Datasheet pdf Search for ISD1820.

datasheetspdf.com

i would like to devise a switching system that automates the alternation of these features and could be adjusted for time. For instance, the system would hit the record button for five seconds and then hit the playback.

The other idea I have is to alternate between two effects in parallel to create chopping effect of two different modulation effects.

 

[phi1]

Interesting. I’m not sure if a transistor in place of those play and record switches would work, but I think an optocoupler would work (send a pulse output from an attiny to turn on the opto-couplers. You could have a time pot input to the attiny.