Difference between relay bypass boards?

[MattG]

I noticed this Announcements post which mentions two new NE555-based relay bypass boards: Basic Relay DPDT Switch (Latching) and Basic Relay DPDT Switch.

How are these different than the preexisting relay bypass boards Basic Relay Bypass (Latching) and Basic Relay Bypass?

 

[benny_profane]

The new boards replace a DPDT switch. The other boards are used to replace a typical 3PDT bypass switch. So, very similar but designed for slightly different applications.