From fc85675145c858e2817d6c10f73029fd4aab4b9e Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Wed, 9 Sep 2020 14:16:42 -0400 Subject: [PATCH] gcode_button: Add support for analog buttons Signed-off-by: Kevin O'Connor --- config/example-extras.cfg | 8 ++++++++ klippy/extras/gcode_button.py | 12 +++++++++++- 2 files changed, 19 insertions(+), 1 deletion(-) 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,