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Additional configuration for brightness sensor #217

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Aug 24, 2022
Merged

Additional configuration for brightness sensor #217

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7 changes: 3 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -23,10 +23,8 @@
* Linking the webinterface to your smartphones homescreen provides an app-like usage of the interface
* Hardware buttons are not mandatory anymore.
* Integration to your instance of [home-assistant](https://www.home-assistant.io/) using [this repository](https://github.com/bk1285/rpi_wordclock_for_homeassistant/)
* Support for a brightness sensor (TSL2561)

### ⏳ In progress
* Integration of a brightness sensor

### :books: Further reading
* Exemplary builds are available at [pinterest](https://www.pinterest.de/berndkrolla/wordclock-gallery/)
* [Roadmap](https://github.com/bk1285/rpi_wordclock/projects)
Expand Down Expand Up @@ -77,11 +75,12 @@ Install adafruit-circuitpython-tsl2561 lib
sudo pip3 install adafruit-circuitpython-tsl2561
```

Set use_brightness_sensor config value to true
Set use_brightness_sensor config value to true and its address
```
# Set the brightness of the display (between 1 and 255)
brightness = 200
use_brightness_sensor = True
sensor_address = 0x39
```

#### Cronjob
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3 changes: 3 additions & 0 deletions wordclock_config/wordclock_config.reference.cfg
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Expand Up @@ -34,7 +34,10 @@ default_font = wcfont

# Set the brightness of the display (between 1 and 255)
brightness = 255
# Supported sensor: TSL2561
use_brightness_sensor = False
# Sensor I2C address in decimal: 41 (0x29), 57 (0x39), 73 (0x49)
sensor_address = 57

[wordclock_interface]
# Defines type of interface (gpio_low: pin is set to low on event, gpio_high: pin is set to high on event, no_gpio: no pins are read at all (= disabled hardware buttons))
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3 changes: 2 additions & 1 deletion wordclock_plugins/time_default/plugin.py
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Expand Up @@ -119,6 +119,7 @@ def __init__(self, config):
self.brightness_change = 8

self.use_brightness_sensor = config.getboolean('wordclock_display', 'use_brightness_sensor')
self.brightness_sensor_address = config.getint('wordclock_display', 'sensor_address')

print(('Using brigtness sensor : ' + str(self.use_brightness_sensor)))
if self.use_brightness_sensor:
Expand All @@ -127,7 +128,7 @@ def __init__(self, config):
import busio
import adafruit_tsl2561
i2c = busio.I2C(board.SCL, board.SDA)
self.sensor = adafruit_tsl2561.TSL2561(i2c)
self.sensor = adafruit_tsl2561.TSL2561(i2c,self.brightness_sensor_address)
# save current brightness for switching back from sleep mode
self.wake_brightness = self.brightness_mode_pos

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