markniu
PID autotune does not work
Today I updated everything possible in de marlin files to make PID autotune work. It does not heat up at all. Over here a zip file with my marlin version so far, maybe I overlooked something?
hello, V1.0 board needs to update new MCU firmware for PID autotune, https://github.com/markniu/PandaPi/tree/master/firmware https://github.com/markniu/PandaPi/wiki/How-to-flash-MCU-firmware
Purchased the ST-Link USB module and uploaded the new firmware. I confirm that the PID autotune works now. In my case the temperature is unfortunately 5 degrees to low.
did you update the latest firmware and marlin code that I had updated the yesterday? how about the default Value of PID?or try to ''M303 C10 S210 '' instead of "M303 S210"
I refreshed the 3 marlin files you uploaded yesterday and the latest firmware I already had.
These are the results
And then I printed something
Still around 5 degrees to cold.
Can you provide the standard pid settings
it seems that the RPI print out wrong PID , it print out some non text words,you can do the autotune one more time. I am testing and debug. set the PID default : M301 P25 I2.4 D66.9 M500
sorry for that bad temperature. so I do more test and fixed it today,but need more test,if you have time you can try to update this new firmware and marlin . following is my test results.
the PID value: P25.00 I2.40 D66.90
the I0.002 is too low, try I1, or increase P and D value. when the autotune failed, try again.did it failed everytime?
I find that the bed temperature on you board are not stable, because of the noise of the hardware or connect line,so I fixed it with the software,you can update the new firmware.
