Relay Board doesn't match docs

[mstrat]

I just received a relay board that differs from what's in this build doc: https://docs.pedalpcb.com/project/PedalPCB-IntelligentRelayBypass.pdf

Some example differences:
* It has a 100K below the attiny, where the build doc shows C2.
* It has a 100n where build doc shows R2
* It has "CTRL" pads on the lower right and left

Please advise. Thanks!

UPDATE: If anyone comes across this with the same question.... It's an updated board. Follow the silkscreen. Omit the 100k. Ignore the ctrl pads.

 

[thedip]

Thanks for the info, I was just wondering the same thing. What is the purpose of the 100k resistor and the ctrl pads? Why is it okay to omit the 100k resistor?

 

[mstrat]

The CTL pads connect to pin 3 of the AVR, and the 100K is a pulldown from 3 to GND. This is for new channel switching behavior: https://forum.pedalpcb.com/threads/new-relay-bypass-module-instant-switching.2722/

For regular on/off relay switching, pin 3 isn't used.

 

[mstrat]

Also FYI if you're looking at the schematic in the published build doc, the 47k pull up has been removed.

 

[thedip]

Ok thank you so much, you just answered everything I was wondering about this!

 

[Moltenmetalburn]

The CTL pads connect to pin 3 of the AVR, and the 100K is a pulldown from 3 to GND. This is for new channel switching behavior: https://forum.pedalpcb.com/threads/new-relay-bypass-module-instant-switching.2722/

For regular on/off relay switching, pin 3 isn't used.

So the new relay boards are out now?

 

[thedip]

So the new relay boards are out now?

It seems that way. I purchased three of them and they seem to have the new functionality although I haven't used them for the multi switching functions. The page for them hasn't been updated and what I received is slightly different from what's currently advertised.

 

[thedip]

This is what they look like now.