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Keypad plugin

This plugin can be used for jogging, controlling feedhold, cycle start etc. via single character commands. The command characters can be delivered either via an I2C or an UART port.

The plugin is enabled in my_machine.h by removing the comment from the #define KEYPAD_ENABLE line and changing it if required:
#define KEYPAD_ENABLE 1 enables I2C mode, an additional strobe pin is required to signal keypresses.
#define KEYPAD_ENABLE 2 enables UART mode.

See the core wiki for more details.

Settings are provided for jog speed and distance for step, slow and fast jogging.

Character to action map:

Character Action
! Enter feed hold
0x82 Enter feed hold
~ Cycle start
0x81 Cycle start
? Status report request
0x80 Status report request
0x18 Soft reset
X Unlock
0x8B Enable MPG full control1
0x85 Cancel jog motion2
0 Enable step mode jogging
1 Enable slow jogging mode
2 Enable fast jogging mode
h Select next jog mode
m Select next jog speed or step distance factor
H Home machine
R Continuous jog X+
L Continuous jog X-
F Continuous jog Y+
B Continuous jog Y-
U Continuous jog Z+
D Continuous jog Z-
r Continuous jog X+Y+
q Continuous jog X+Y-
s Continuous jog X-Y+
t Continuous jog X-Y-
w Continuous jog X+Z+
v Continuous jog X+Z-
u Continuous jog X-Z+
x Continuous jog X-Z-
0x84 Toggle safety door open status
0x88 Toggle optional stop mode
0x89 Toggle single block execution mode
0x8A Toggle Fan 0 output3
I Restore feed override value to 100%
0x90 Restore feed override value to 100%
i Increase feed override value 10%
0x91 Increase feed override value 10%
j Decrease feed override value 10%
0x92 Decrease feed override value 10%
0x93 Increase feed override value 1%
0x94 Decrease feed override value 1%
0x95 Restore rapids override value to 100%
0x96 Set rapids override to 50%
0x97 Set rapids override to 25%
K Restore spindle RPM override value to 100%
0x99 Restore spindle RPM override value to 100%
k Increase spindle RPM override value 10%
0x9A Increase spindle RPM override value 10%
z Decrease spindle RPM override value 10%
0x9B Decrease spindle RPM override value 10%
0x9C Increase spindle RPM override value 1%
0x9D Decrease spindle RPM override value 1%
0x9E Toggle spindle stop override4
C Toggle flood coolant output
0xA0 Toggle flood coolant output
M Toggle mist coolant output
0xA1 Toggle mist coolant output
0x88 Toggle optional stop
0x89 Toggle single block
0xA4 Toggle probe connected

1 Only available if MPG mode is enabled. Build 20220105 or later is required.
2 Only available in UART mode, it is recommended to send this on all key up events. In I2C mode the strobe line going high is used to signal jog cancel.
3 The fans plugin is required.
4 Only available when the machine is in Hold state.


Dependencies:

An app providing input such as this implementation.

Driver (and app) must support I2C communication and a keypad strobe interrupt signal or have a free UART port depending on the mode selected.


2024-07-30