This is a nice approach of using Lectron. First build of a circuit with separate components and then putting this circuit in 1 module.
A while ago, I experimented and finished a HEX bcd decoder with 7 segment display.
The only trouble I had was to cramp all components in a 3×1 module !
So I had to trim the circuit and now it’s waiting to be build.
So far I had tons of fun with only the basic and expansion set (see my circuit posts on the forum). I’d love to tweak and invent circuits with only the parts of this set.
I haven’t even open the rest of the 1205 box !
BTW, I checked your impressive list of all blocks ever made, never knew there were so many of them !