blob: 450917a02d63e52e862cee6bb8fcaf2d6de55e24 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
---
tag: m0042
title: Set Pin State
brief: Set an analog or digital pin to a specified state.
author: thinkyhead
group: control
codes: [ M42 ]
notes:
parameters:
-
tag: I
optional: true
since: 1.1.9.1
description: Ignore protection on pins that Marlin is using.
values:
-
type: bool
-
tag: T
optional: true
since: 2.0.5.2
description: Set the pin mode. Prior to Marlin 2.0.9.4 this is set with the `M` parameter.
values:
-
tag: 0
description: '`INPUT`'
-
tag: 1
description: '`OUTPUT`'
-
tag: 2
description: '`INPUT_PULLUP`'
-
tag: 3
description: '`INPUT_PULLDOWN`'
-
tag: P
optional: true
description: A digital pin number (even for analog pins) to write to. (`LED_PIN` if omitted)
values:
-
tag: pin
type: int
-
tag: S
optional: false
description: The state to set. PWM pins may be set from 0-255.
values:
-
tag: state
type: int
examples:
-
pre: Turn the LED pin on
code: M42 S1
-
pre: Turn on pin 33
code: M42 P33 S1
-
pre: Set pin 44 to do PWM with 50% DC
code: M42 P44 S128
---
For custom hardware not officially supported in Marlin, you can often just connect up an unused pin and use [`M42`](/docs/gcode/M042.html) to control it.
|
