[mogery]

Really, using a Teensy 4.0 to make scrolling faster? That seems really overkill to me. You could make a small computer out of a Teensy 4, quite excessive to use it as a display-out.

[HeyLaughingBoy]

[shrug]

I will happily use an entire arduino clone to produce a periodic pulse when it could be done with an NE555 timer. One will take me approximately 2 minutes, the other more than 2 hours.

When your build quantity == one, the concept of overkill becomes less meaningful.

[kragen]

I recall some Keysight "educational" video where the guy says, "This is my million-dollar cellphone charger" and plugs his cellphone into a USB port on a fancy oscilloscope.

[JKCalhoun]

That's true. If I had been able to get the hardware scrolling to work on the ILI9341 no doubt it could have easily run on a lower-end Teensy. Maybe someone more clever than me can get it to work. It sucks to resort to brute force.

[hedgehog]

I'm a little surprised there's not a better LCD controller for this kind of application, even a little iCE40 should be enough to implement a character display and smooth scrolling on both axes.

[kragen]

Vast overkill in this respect is historically accurate; the VT100 was built around an 8085, for example.

[bitwize]

The 8008 was invented for a terminal application -- the Datapoint 2200. So not only were VDTs effectively microcomputers since the 70s, but Intel's main processor line up until the present day owes its existence to VDT applications.

[hypertele-Xii]

Computers are getting cheaper faster than we can figure out what to do with them.

Overkill is fine.