Well, as my UM sits on the other site of the room I got tired of picking it up to get it close enough to my PC for the USB cable. Mostly for firmware update or sometimes when I needed to fiddle with it.
First of all the firmware, I have not been able to load it wireless. The Marlin firmware states that although the communication port is changed to "Serial 3", the bootloader will still listen to "Serial 0".
I was hoping it would be listening to both the ports, but for now it doesn't work.
I used the following connectios pins:
This is not my board but it looks similar, only thing is that on my board the silk contains the text "serial 3" next to the pins
Btw, I had to cross connect the Tx and Rx as the order is different on the HC-06
I also tried to print through the bluetooth connection, see the bots.
Two Robots printed with the exact same settings, the left one printed using the SD-Card, it looks ok. The right bot is printed using the Bleutooth connection, not that nice (it even looks a bit sad :-P ).
The Bluetooth print also took longer to print, and it was stuttering on the outer shell lines.
The infill was (strangly) printed fluently?!?
Q: Would it be possible to transfer the gcode to the SD-Card and then command to start the print wireless?