Add virtual servos and bltouch support to the simulator

[ellensp]

Description

This adds virtual servos to the Simulator.
It does not simulate the PWM signals on the pins, It just provides a mostly stub servo library.

This allows us to run bltouch code in the simulator.

Requirements

run the simulator + servos, includes bltouch

Benefits

Bltouch and servo support!!!

Configurations

Standard https://github.com/MarlinFirmware/Configurations/tree/bugfix-2.1.x/config/examples/Simulator + bltouch enabled

Notes

This requires a patch to the MarlinSimUI, so for review I have updated native.ini to point to my fork.
A PR to update MarlinSimUI is in thee works p3p/MarlinSimUI#49

I have set this to draft until MarlinSimUI is updated.

[bmourit]

Love this!

[classicrocker883]

cant wait to see this merge

[classicrocker883]

here are some changes i had to make to get it to compile:

• add #include <algorithm> for std::find_if to .pio/libdeps/simulator_linux_release/MarlinSimUI/src/MarlinSimulator/virtual_printer.h
• disable ENDSTOP_INTERRUPTS_FEATURE
• comment out Z_MIN|MAX_ENDSTOP_HIT_STATE in Marlin/src/inc/Conditionals-5-post.h

#if !NEED_HIT_STATE(Z_MIN)
  //#undef Z_MIN_ENDSTOP_HIT_STATE
#endif
#if !NEED_HIT_STATE(Z_MAX)
  //#undef Z_MAX_ENDSTOP_HIT_STATE
#endif

I suppose the _ENDSTOP_HIT_STATE doesnt need changing if ENSTOP_INTERRUPTS_FEATURE could be enabled

[ellensp]

ENDSTOP_INTERRUPTS_FEATURE is not part of https://github.com/MarlinFirmware/Configurations/tree/bugfix-2.1.x/config/examples/Simulator and its is not supported in the sim.

No changes are required with standard configs

[ellensp]

Added servo's to menu

[classicrocker883]

I was able to use basically an Ender-3 V2 config with DWIN lcd and it works. what about software interrupts

[bmourit]

This emulator is one of the most under appreciated, but incredibly useful parts of Marlin, IMH. This added virtual servo support support is awesome.

[thisiskeithb]

Just make sure this isn't merged early, changes are still being worked through in the simulator channel on Discord and I assume those will go upstream to @p3p's repo once that is all worked out.

[thinkyhead]

Just make sure this isn't merged early, changes are still being worked through in the simulator channel on Discord and I assume those will go upstream to @p3p's repo once that is all worked out.

No worries. This will not be merged until MarlinSimUI=https://github.com/p3p/MarlinSimUI/archive/NEWGOODNESS.zip

[ellensp]

Bltouch Looks good, tested homing and probing a 10x10 UBL

Currently breaks building if you enabled servos but not a bltouch.
eg #define NUM_SERVOS 3 with //#define BLTOUCH

[ellensp]

I think we are all good to go, just waiting on p3p/MarlinSimUI#49 so can change native.ini back to p3p from my fork.

Now with a nice Bltouch menu thanks to p3p

[thinkyhead]

This is a great bottle example of how to add new functionality to the Simulator! I'll be sure to put it on the list of examples for new developers in the Developer Guide, along with any other well-contained PRs that exemplify how to do a thing.

[ellensp]

p3p MarlinSimUI has been updated, and ini/native.ini has been updated to use it.