Created
September 5, 2020 19:48
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Script to read ring alarm state
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| #!/usr/bin/python | |
| from enum import Enum | |
| import time | |
| import requests | |
| import RPi.GPIO as GPIO | |
| # For this package see gist: https://gist.github.com/flxkid/2c8af86d51dc3532b6e0a085b8727e48 | |
| from TCS34725 import TCS34725 | |
| from colormath.color_objects import sRGBColor, LabColor | |
| from colormath.color_conversions import convert_color | |
| from colormath.color_diff import delta_e_cie2000 | |
| class AlarmState(Enum): | |
| UNKNOWN = 1 | |
| DISARMED = 2 | |
| ARMED = 3 | |
| BATTERYLOW = 4 | |
| class AlarmColor: | |
| """A class to compare the color detected on ring alarm to predefined colors""" | |
| # These are the detected colors on a gen 1 Ring base station | |
| armed_color_rgb = sRGBColor((245/255.0), (15/255.0), (23/255.0)) | |
| armed_color = convert_color(armed_color_rgb, LabColor) | |
| disarmed_color_rgb = sRGBColor((18/255.0), (69/255.0), (251/255.0)) | |
| disarmed_color = convert_color(disarmed_color_rgb, LabColor) | |
| batterylow_color_rgb = sRGBColor((250/255.0), (250/255.0), (100/255.0)) | |
| batterylow_color = convert_color(batterylow_color_rgb, LabColor) | |
| # This is the threshold for the delta (based on cie2000) to detect a different color | |
| change_threshold = 18 | |
| def __init__(self, notifier_func): | |
| self.notification_function = notifier_func | |
| self.last_state = AlarmState.UNKNOWN | |
| self.last_color = None | |
| self.current_state = AlarmState.UNKNOWN | |
| self.sensor = TCS34725(0x29, debug=False) | |
| if (self.sensor.TCS34725_init() == 1): | |
| print("Couldn't initialize the light sensor!") | |
| exit() | |
| time.sleep(1) # give the sensor time to initialize | |
| self.sensor.SetLight(0) # turn off the light because we're trying to read an LED's value | |
| def read_current_color_data(self): | |
| self.sensor.Get_RGBData() | |
| self.sensor.GetRGB888() | |
| self.current_color_rgb = sRGBColor(self.sensor.RGB888_R/255, self.sensor.RGB888_G/255, self.sensor.RGB888_B/255) | |
| self.current_color_lab = convert_color(self.current_color_rgb, LabColor) | |
| self.interpret_color() | |
| def color_delta(self, color1, color2): | |
| if color1 is None or color2 is None: | |
| return 255 | |
| return delta_e_cie2000(color1, color2) | |
| def color_by_name(self, color_name): | |
| pass | |
| def interpret_color(self): | |
| if self.color_delta(self.last_color, self.current_color_lab) > self.change_threshold: | |
| self.last_color = self.current_color_lab | |
| self.last_state = self.current_state | |
| if self.color_delta(self.current_color_lab, self.armed_color) < self.change_threshold: | |
| self.current_state = AlarmState.ARMED | |
| elif self.color_delta(self.current_color_lab, self.disarmed_color) < self.change_threshold: | |
| self.current_state = AlarmState.DISARMED | |
| elif self.color_delta(self.current_color_lab, self.batterylow_color) < self.change_threshold: | |
| self.current_state = AlarmState.BATTERYLOW | |
| else: | |
| self.current_state = AlarmState.UNKNOWN | |
| # Trigger the notification function that there has been a state change | |
| self.notification_function(self.last_state, self.current_state, self.current_color_rgb) | |
| def status_notify(prior_state, current_state, current_rgb): | |
| print("The state of the alarm changed from ", str(prior_state), " to ", str(current_state)) | |
| if current_state == AlarmState.UNKNOWN: | |
| print ("The unknown RGB is ", current_rgb) | |
| if current_state == AlarmState.ARMED: | |
| # put in the address for your home assistant server and webhook name | |
| r = requests.post('http://172.16.10.12:8123/api/webhook/armed', data='') | |
| r.close() | |
| if current_state == AlarmState.DISARMED: | |
| # put in the address for your home assistant server and webhook name | |
| r = requests.post('http://172.16.10.12:8123/api/webhook/disarmed', data='') | |
| r.close() | |
| if __name__ == "__main__": | |
| alarm = AlarmColor(status_notify) | |
| while True: | |
| alarm.read_current_color_data() |
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