How to address Host (RPI) gpio pin
Hi, i'm trying to switch to ratos and want to include my custom mainsail setting. Now i'm stuck with the lightbar i have installed. In my former printer.cfg i had the following:
[mcu host]
serial: /tmp/klipper_host_mcu
[output_pin caselight]
pin: host:gpio17
[gcode_macro TOGGLE_CASELIGHT]
gcode: SET_PIN PIN=caselight VALUE={(not printer['output_pin caselight'].value)|int}
that gave me a toggle switch to turn the lightbar on. when i use those lines in a custom.cfg which i include in the printer.cfg under ratos klipper won't connect again. the problem is the first 2 lines. so what do i need to change to make it work?
another thing is how can i get rid of the temperature displays for the board and the rpi?
Solution:Jump to solution
Ohh looks like that is attached to the PI right?
you probably just need to add to the
USER OVERRIDES section of your printer.cfg (in ratos)
```
[output_pin caselight]
pin: rpi:gpio17...25 Replies
Solution
Ohh looks like that is attached to the PI right?
you probably just need to add to the
USER OVERRIDES section of your printer.cfg (in ratos)
yes, correct
it is attached to the Pi
you mean the part you quoted?
just put that in the user overrides?
like this:
yes, notice I changed
pin: host:gpio17to
pin: rpi:gpio17
ah right... good you mentioned 😄
man it can be so easy when you know how 😄
thx. its working
but maybe you can help me on some other tricky stuff with the temperature for the board
I can try
allright. i have a temperature controlled fan added for my skr board which describes as followed:
[temperature_fan SKR_Pro]
pin: PD2
kick_start_time: 0.5
max_speed: 1.0
min_speed: 0.0
hardware_pwm: False
cycle_time: 0.1
sensor_type: temperature_mcu
target_temp: 40
min_temp: 0
max_temp: 80
tachometer_pin: ^PE2
tachometer_ppr: 2
tachometer_poll_interval: 0.0015
control: pid
pid_Kp: 1
pid_Ki: 1
pid_Kd: 1
but the line sensor_type: temperature_mcu interferes with the ratos.cfg which also uses temperature_mcu for monitoring the board temp
what's the actual error message you are getting?
wait. i have to restart the printer to screenshot that
may take a minute or two
no worries, I have to get back to work (on my lunch break) but I'll try and respond later
allright, thx alot
here it is
oh... looks like that is already defined in https://github.com/Rat-OS/RatOS-configuration/blob/v2.1.x/boards/btt-skr-pro-12/config.cfg#L42-L45
you just need to override with your changes
a lot of the other stuff is already defined, so no need to repeat it. If that still doesn't work, upload your printer.cfg
GitHub
RatOS-configuration/boards/btt-skr-pro-12/config.cfg at v2.1.x · R...
The RatOS modular klipper configuration. Contribute to Rat-OS/RatOS-configuration development by creating an account on GitHub.
but if i override it in ratos.cfg it gets restored on every reboot
no no, never change ratos.cfg. You override in printer.cfg
as you correctly pointed out, it is auto generated after each boot
the printer.cfg isn't, and that is where you want to put any custom changes
okay, maybe you can tell me how and what to override in printer.cfg. right now i've created a custom.cfg which is included in the printer.cfg. or do i need to put it directly in the printer.cfg?
doesn't need to be now... when you are done with work 😉
Includes & Overrides | RatOS
RatOS uses a modular configuration that heavily takes advantage of the config file include and merge logic in Klipper. For this reason, the order of includes and overrides are very important, do not change the order of the configuration unless you know what you're doing.
all depends on how you want to do it, but what you write last "wins"
ok, i'll give it a try...
doesn't work. in ratos.cfg the following is specified:
[temperature_sensor SKR_Pro_v1.2]
sensor_type: temperature_mcu
so it is the tepmerature sensor
in printer.cfg i hav now specified a temperature fan which also uses the temperature sensor part...
nevermind, got it working 👍
thx for your help
what did you do - in case anyone ends up searching this discord
i simply changed the temperature_mcu to temperature_host. it is more of a workaround because now the rpi and the skr show the same temp. after that i have disabled the host and mcu sensors in the mainsail interface because rpi and skr showed up twice because of the temperature fan settings
would look like this
vs this with the sensors hidden
