Pushed it into a component:

See https://www.flowcode.co.uk/forums/viewtopic.php?t=3636

A simple display (4 digit) using a shift register. A couple of points: 1) Pull the OE (output enable) pin to ground either in code or in hardware. 2) Multiplex needs to be called regularly - ideally use an interrupt - as per demo. However it could be called in a loop (with a delay). Something like 2...

Keyboard shortcuts are my go to option
Though otherwise 'goto' is frowned upon!

Shiny...

Mostly it's intuitive - or becomes so?

I've never managed the signal generator though - one day i might have the need.

It's designed for a touch screen interface - works well on Android - I often run on tablet.

Martin

A rather busy breadboard !

The 'trace' showing the 'common' pins.

Pins for CA0 (probably should be CA1 ?) - CA3 etc are in properties. It's all Flowcode - but doesn't attempt to simulate (although you can look at what is being sent to the shift registers and the common pins in multiplex)

Martin

I had a play with this... This is a first idea - and as Iain says using CS as RCLK seems to work well... I use an interrupt to multiplex the displays - the character set is a rough attempt with QA connected to segment A, QB to seg B etc) I found an interrupt rate of 244Hz worked nicely (each digit r...

I've not encountered any - I'm currently using v5.5 - and so far no problems... There have been issues with installing versions - which, luckily, i seem to have avoided - I've always found running the online installer and then the install.bat (in the framework directory) had been good - but back eve...

There are quite a lot of MAX7219 drivers around though - I've done ones for the 8 x 8 grids, digits and most recently - 32 x 32 :-) (the last is the simplest and supports simulation too!) The actual data required is simple - output to all of the attached drivers and then latch a line at a time. Martin