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authorKevin O'Connor <kevin@koconnor.net>2020-09-09 14:16:42 -0400
committerKevin O'Connor <kevin@koconnor.net>2020-09-09 14:21:30 -0400
commitfc85675145c858e2817d6c10f73029fd4aab4b9e (patch)
treecf5fe2b3ad8c6398ff8e0aa8c38a4ecb032ebee8
parent13ee6032ae28a4a8dfc1e194c2b5c73e66674df3 (diff)
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gcode_button: Add support for analog buttons
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
-rw-r--r--config/example-extras.cfg8
-rw-r--r--klippy/extras/gcode_button.py12
2 files changed, 19 insertions, 1 deletions
diff --git a/config/example-extras.cfg b/config/example-extras.cfg
index 02647458..ce981c7e 100644
--- a/config/example-extras.cfg
+++ b/config/example-extras.cfg
@@ -1330,6 +1330,14 @@
#pin:
# The pin on which the button is connected. This parameter must be
# provided.
+#analog_range:
+# Two comma separated resistances (in Ohms) specifying the minimum
+# and maximum resistance range for the button. If analog_range is
+# provided then the pin must be an analog capable pin. The default
+# is to use digital gpio for the button.
+#analog_pullup_resistor:
+# The pullup resistance (in Ohms) when analog_range is specified.
+# The default is 4700 ohms.
#press_gcode:
# A list of G-Code commands to execute when the button is pressed.
# G-Code templates are supported. This parameter must be provided.
diff --git a/klippy/extras/gcode_button.py b/klippy/extras/gcode_button.py
index 2f723cac..764ba4a9 100644
--- a/klippy/extras/gcode_button.py
+++ b/klippy/extras/gcode_button.py
@@ -12,7 +12,17 @@ class GCodeButton:
self.pin = config.get('pin')
self.last_state = 0
buttons = self.printer.load_object(config, "buttons")
- buttons.register_buttons([self.pin], self.button_callback)
+ analog_range = config.get('analog_range', None)
+ if analog_range is None:
+ buttons.register_buttons([self.pin], self.button_callback)
+ else:
+ try:
+ amin, amax = map(float, analog_range.split(','))
+ except:
+ raise config.error("Unable to parse analog_range")
+ pullup = config.getfloat('analog_pullup_resistor', 4700., above=0.)
+ buttons.register_adc_button(self.pin, amin, amax, pullup,
+ self.button_callback)
gcode_macro = self.printer.load_object(config, 'gcode_macro')
self.press_template = gcode_macro.load_template(config, 'press_gcode')
self.release_template = gcode_macro.load_template(config,