Hello, I am using Marlin 2.1 and help making HEATED_BED temperature to be 1C to 30C.
I am using RAMPS compatible board MKS GEN L where HEATED_BED output pin is D8 .
I need Heated _Bed temperature to be in range of the 1C to 30C.
I tested several configurations but I was not able to go below ambient temperature.
Software need to be modified to work as cooler - opposite of the current operation. I was able to invert the pin operation but there was a problem when software reset after power up which will require adding the condition which will define pin D8 will be pulled LOW any time when set temperature is 0C.
I believe that should be more elegant way to do this.
If you are familiar with Marlin please let me know or help with suggestions.
Thanks
