64-bit 3D printer,Run marlin on RaspberryPi

the new IMG file PandaPiX_20200405.zip have been uploaded to MEGA. https://mega.nz/#F!qJgHzRwB!Sl6hKYqNDLAtKXnzekdB3A
Calibrate the motor native speed;open the runaway code;

new web marlin edit tool;

higher the marlin priority in OS;

fix U drive auto mount bug;

PandaPi Marlin2.0.4.4 release img for pi3/pi4

https://mega.nz/#F!qJgHzRwB!Sl6hKYqNDLAtKXnzekdB3A

integrate the optocoupler to PandaPi, that support  6V~36V inductive sensor, about $2

marlin2.0 test version is online,have done a few test. 

https://github.com/markniu/PandaPi

marlin2.0 test version is online,have done a few test. 

https://github.com/markniu/PandaPi

got the sample of the next hardware version today.   compare to V1.0, this hardware has 6 motors drivers; 2 hotends;TMC2208/2209 UART interface;sensorless homing without extra wiring; this V2 is just a sample and will be available at more than one month later. and the software also need to be debugg and test for double extruders.

I am portinng Marlin2.0

5 pandas send out ! good luck.