duet3d/cnc-pendant-firmware

CNC-Pendant-Firmware

This is firmware to run on an Arduino Pro Micro (preferred) or Arduino Nano to interface a popular style of wired CNC pendant to the PanelDue port of Duet electronics. Build it using Arduino IDE.

For a full guide to building the pendant, see the Duet3D wiki here.

Wiring

Pendant to Arduino Pro Micro wiring:

Pro Micro	Pendant	Wire colours
VCC	+5V	red
GND	0V COM CN LED-	black orange/black blue/black white/black
D2	A	green
D3	B	white
D4	X	yellow
D5	Y	yellow/black
D6	Z	brown
D7	4	brown/black
D8	5	pink (if present)
D9	6	pink/black (if present)
D10	LED+	green/black
A0	STOP	blue
A1	X1	grey
A2	X10	grey/black
A3	X100	orange
NC	/A /B	violet violet/black

Arduino Pro Micro to Duet 3 IO_0 connector or Duet 2 PanelDue connector wiring (3- or 4-core cable):

Pro Micro	Duet
VCC	+5V (red wire)
GND	GND (yellow wire)
TXO GND	Through 6K8 resistor to IO_0_IN (Duet 3) or URXD0 (Duet 2) Also connect 10K resistor between GND and IO_0_IN (Duet 3) or URXD0 (Duet 2) (blue wire from resistor junction to Duet)

To connect a PanelDue as well (the Arduino Pro Micro passes the PanelDue commands through to the Duet):

PanelDue	Pro Micro / Duet
+5V	+5V/VCC (red wire to Ardiuno or Duet)
GND	GND (yellow wire to Ardiuno or Duet)
DIN	Duet IO_0_OUT (Duet 3) or UTXD0 (Duet 2) (green wire)
DOUT	Pro Micro RXI (blue wire of PanelDue cable to green wire of pendant cable)

For wiring differences and hardware changes needed if using an Arduino Nano, see the comments at the start of the CNC-pendant.ino file.

Support requests

Please use the forum for support requests.

cnc-pendant-firmware's Issues

Macro Trigger Button

Would it be easy to add a button to trigger a macro?

Compile error on Arduino 1.8,13

Hi, getting a compile error on downloaded code 071c4fa
on 30 May 2020
as follows:
no idea what" attribute" is, so cannot move forward.

sketch\PassThrough.cpp: In member function 'unsigned int PassThrough::Check(HardwareSerial&)':
PassThrough.cpp:57:9: error: expected primary-expression before 'attribute'
attribute ((fallthrough));
^
exit status 1
expected primary-expression before 'attribute'

Regards, Robert.

Needs updating to use CRC16 instead of checksum

The current version is not compatible with PanelDue firmware versions that use a CRC16 instead of a checksum at the end of each command sent.

I have added tag last-release-using-checksums on the latest commit, for the benefit of anyone staying with RRF/PanelDueFirmware versions prior to 3.4. I suggest we amend this firmware to support only CRC16 from PanelDue, and to generate CRC16 when sending commands to the Duet. It would be possible to recognise checksums from PanelDue too (see the code in RRF for how to do this) but I think there is little point in doing this.