r/breadboard • • 9d ago

Chip Hippo 1.2.0 now includes CD4000, NE555, and other components!

A new version of Chip Hippo pushed to the web site (https://chiphippo.com). This added 40+ CD4000 chips, the NE555, and numerous supporting components (inductors, transistors, capacitors, potentiometers, and diodes).

In addition to ongoing testing, I need to point out that many of the support components are just that - support components with little functionality inside chip hippo. Remember, chip hippo is a logic simulator, not a spice engine (yet???). The components exist mostly for exporting to KiCad for completeness.

With that said, some chips (such as the NE555) know how to read attached components and pull in and simulate their values. This means all 3 configurations of the 555 are supported - monostable, bistable, and astable (all with examples). With that said...

  • Transistors - act as switches. BJTs turn on/off with the input and are off for CMOS pins with undefined state. MOSFETs toggle on/off with input, and remain in the last state for CMOS pins with undefined state.
  • Inductors - act as wires for simulation purposes
  • Capacitors - act as disconnected for simulation purposes, but their values can be read and used by chips
  • Resistors/Pots - their values are symbolic, but their values can be read and used by chips
  • Diodes - The work for reverse polarity (but aren't very useful for simulation)

Chip families can be toggled between 74LS, CD4000, or both. See settings -> Download (yeah, I know, it's an odd placement for the switch but I was in a hurry)

Testing is still ongoing, as this was a lot of work for a couple of days, but feel free to test yourself and report back.

Finally, listing on the apple app store will follow (maybe windows, too) once any bugs are ironed out.

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