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https://github.com/cyberboy666/r_e_c_u_r.git
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81 lines
3.3 KiB
Python
81 lines
3.3 KiB
Python
import Adafruit_MCP3008
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class AnalogInput(object):
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def __init__(self, root, message_handler, display, actions, data):
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self.root = root
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self.message_handler = message_handler
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self.display = display
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self.actions = actions
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self.data = data
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self.analog_mappings = data.analog_mappings
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self.analog_delay = 50
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self.last_readings = [0, 0, 0, 0, 0, 0, 0, 0]
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self.analog_input = None
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self.check_if_listening_enabled()
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def check_if_listening_enabled(self):
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if self.data.settings['user_input']['ANALOG_INPUT']['value'] == 'enabled':
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if not self.analog_input:
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try:
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## note - using software spi for now although on the same pins as the hardware spi described below because hardware spi wasnt working with lcd display
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# SPI_PORT = 1
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# SPI_DEVICE = 2
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# self.analog_input = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))
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CLK = 21
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MISO = 19
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MOSI = 20
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CS = 16
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self.analog_input = Adafruit_MCP3008.MCP3008(clk=CLK, cs=CS, miso=MISO, mosi=MOSI)
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except:
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self.message_handler('INFO', 'analog inputs not connected')
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self.poll_analog_inputs()
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else:
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self.root.after(1000, self.check_if_listening_enabled)
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def poll_analog_inputs(self):
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if self.data.settings['user_input']['ANALOG_INPUT']['value'] == 'enabled':
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for i in range(0, 8):
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if str(i) in self.analog_mappings:
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this_reading = self.analog_input.read_adc(i)
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# print(str(this_reading))
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if abs(this_reading - self.last_readings[i]) > 10:
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# print('the diff is {}'.format(this_reading - self.last_readings[i]))
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self.run_action_for_mapped_channel(i, this_reading)
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self.last_readings[i] = this_reading
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self.root.after(self.analog_delay, self.poll_analog_inputs)
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else:
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self.check_if_listening_enabled()
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def run_action_for_mapped_channel(self, channel, channel_value):
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this_mapping = self.analog_mappings[str(channel)]
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if type(self.data.control_mode) is list:
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mode = 'DEFAULT'
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for cm in self.data.control_mode:
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if cm in this_mapping:
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mode = cm
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break
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elif self.data.control_mode in this_mapping:
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mode = self.data.control_mode
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elif 'DEFAULT' in this_mapping:
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mode = 'DEFAULT'
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if self.data.function_on and len(this_mapping[mode]) > 1:
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method_name = this_mapping[mode][1]
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self.data.function_on = False
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else:
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method_name = this_mapping[mode][0]
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if channel_value is not None:
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norm_channel_value = channel_value / 1023
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else:
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norm_channel_value = None
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print('the action being called is {}'.format(method_name))
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self.actions.call_method_name(method_name, norm_channel_value)
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## not sure whether we want to update the screen in general; here - probably not most of the time ...
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# if 'cc' not in message_name:
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# self.display.refresh_display()
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