Config files for PowerWASP Printer (#12889)

Marlin/src/config/examples/WASP/PowerWASP/README.md

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+# Modifications to PowerWASP firmware with a few extras
+The later versions of the PowerWASP controller board have power loss detection on pin 65 (low on loss). this has been configured in POWER_LOSS_RECOVERY. Because of this there is no need to save each command line just in case of a power loss to the machine. The board will hold enough power to allow the print to be saved to the SD card.
+
+The retract position on finishing the print has been set at Z190 X0 Y0
+
+There are provisions made here to use ESP3D wireless printer control.
+
+https://github.com/luc-github/ESP3D
+
+The original PowerWASP board has available a internal serial port connection with Arduino Serial3.
+The connections are as follows:
+```
+.------------.---------------------.
+|            |  Serial3            |
+|            |  [O] 5V             | Front
+|    FAN     |  [O] GND            | panel
+|            |  [O] TX             | side
+|            |  [O] RX             |
+`------------´---------------------´
+```
+
+With the option of wireless file upload to the SD card, the idea of updating the Firmware
+from the SD can also be useful. This option has been selected, but requires a modified boot loader
+that can be found here:
+
+https://github.com/rainerumrobotics/MicroBridge-Arduino-ATMega2560
+
+USB and SDCARD Firmware flashing for the ARDUINO ATMEGA 2560 and ADK
+---------------------------------------------------------------------
+The bootloader looks for byte in eeprom at address 0x3FF:
+
+	-if it is set to 0xF0 bootloader will look for a bin file on the sdcard named
+	 firmware.bin and use it to flash the firmware then reset the byte to 0xFF so it
+	 does this only once
+
+	-otherwise no action is taken and bootloader works as a arduino bootloader except
+	 some of the debugging functions are missing
+
+Setup
+
+	ADAFruit micro sdcard 5V ready:
+
+	SDCARD on ATMEGA 2560 or ADK
+
+	pin 50  -  DO
+
+	pin 51  -  DI
+
+	pin 52  -  CLK
+
+	pin 53  -  CS
+
+Generate BIN file for firmware update:
+
+To generate a bin file you need issue the following command on you apps elf executable:
+
+	avr-objcopy -I elf32-avr -O binary firmware.cpp.elf firmware.bin
+
+this generates firmware.bin which can be put on the sd for flashing your firmware. You can find the elf
+file in you apps build directory.
+
+Using olimex usb to upload bootloader:
+
+	avrdude -c stk500v2 -p m2560 -P /dev/tty.usbmodemfd131 -B 500 -e -u -U lock:w:0x3F:m -U efuse:w:0xFD:m -U hfuse:w:0xD8:m -U efuse:w:0xFF:m -F
+
+	avrdude -p m2560 -c stk500v2 -P /dev/tty.usbmodemfa131 -F -U flash:w:stk500boot.hex -b 115200 -B1 -U lock:w:0x0F:m
+
+	avrdude -p m168 -c usbtiny -e -u -U lock:w:0x3f:m -U efuse:w:0x00:m -U hfuse:w:0xDD:m -U lfuse:w:0xFF:m
+
+
+	avrdude -p m2560 -c stk500v2 -P /dev/tty.usbmodemfd131 -U flash:w:stk500boot_v2_mega2560.hex -U lock:w:0x0F:m -v
+	avrdude -c stk500v2 -p m2560 -P /dev/tty.usbmodemfd131 -U lock:w:0x3F:m -U efuse:w:0xFD:m -U hfuse:w:0xD8:m -U lfuse:w:0xFF:m -e -v