So running a cooling fan for my Pi is very easy: [temperature_sensor raspberry_pi] sensor_type: temperature_host min_temp: 0 max_temp: 100 [temperature_fan controller_fan] # Electronics fan PWM pin: PB5 max_power: 0.60 hardware_pwm: true control: watermark max_delta: 2 sensor_type: temperature_hos…

You can’t refer to the same temp source in two different sections. [temperature_sensor mcu_temp] sensor_type: temperature_mcu [temperature_fan octopus_fan] pin: PB5 max_power: 0.60 hardware_pwm: true control: watermark max_delta: 2 sensor_type: temperature_mcu min_temp: 10 max_temp: 80 t…

More than likely two trying to access temperature_host. Your EBB should also have this so it is getting it from the EBB and not your main mcu by default. sensor_mcu: EBBCan

[image] NAPCAL: More than likely two trying to access temperature_host. Yep, that’s the gist of the error I get. I’ll try your suggestion, thank you. Edit: do you mean like this: [IMG_8435] As that is what I currently have.

Yep. And if you want a temperature controlled fan for the RPi then you might have to comment out the RPi temp monitoring to use the temperature_host.

The RPi 4 already has OS temperature control for a PWM fan. [image] Raspberry Pi PWM Fan Speed Control - Embedded Computing Design As you probably know, Raspberry Pi single-board computers, especially Pi 4 models, can get quite hot. While passive cooling options are often good enough to…

[image] NAPCAL: The RPi 4 already has OS temperature control for a PWM fan. I’m running a 3B+. [image] NAPCAL: if you want a temperature controlled fan for the RPi then you might have to comment out the RPi temp monitoring to use the temperature_host. I have temp controlled fan for th…

[image] NAPCAL: And if you want a temperature controlled fan for the RPi then you might have to comment out the RPi temp monitoring to use the temperature_host. So even if I comment out all MCU temp sections including the rPi, except the main board MCU, then use Host for the main board MCU, i…

[image] [controller_fan] using raspi temp as input General Discussion first i had this, but this will give very jerky motion to the fans because they dont know wich signal to take #[duplicate_pin_override] #pins: PC8 #[controller_fan board_fans] #pin: PC8 #kick_start_tim…

Im not sure how that is relevant? I can trigger the fan via my rPi CPU temp without issue, what I cant is trigger them from the main board MCU. I dont understand why I get the “ADC” error but ModBot can get it working: [Upgrade Your Fans With Klipper Firmware]

[image] NAPCAL: You can’t refer to the same temp source in two different sections. Oh that makes sense - I now have it working after commenting out the below section, thank you. :pray: #[temperature_sensor mcu_temp] #sensor_type: temperature_mcu #min_temp: 0 #max_temp: 100

Did something change in the last few weeks. This does not work for me. Intially i had temp sensors set for both Pi and MCU, and they show on the chart in the main screen of mainsail. Then i tried to setup "{temperature fans, to get some fans to turn on and off depending on Pi temps, didn’t work. The…

How do you trigger fans from the Main MCU Temp?

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NAPCAL May 3, 2023, 11:21pm 8

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How do you trigger fans from the Main MCU Temp?

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