![]() Likewise, Integration time is the amount of time the sensitive photo diodes within the sensor absorb light before beginning its' Lux calculation. If you're in a dark room with very little light, the sensor needs a way to amplify the weak light source to get accurate lux calculations and the gain is what give is it's oomph. Alternatively, you can use ping to find the IP address of raspberrypi.local, and use it as the hostname, which is useful if you have multiple raspberry pi devices connected to your wifi.What does gain and integration time mean? You can think of gain as an electronic mechanism to amplify a weak signal. My raspberry pi connects to my wifi, and is accessible at raspberrypi.local. The neopixel_controller Flask application, in the neopix_controller directory of the github repository (see below), offers a front-end browser graphical user interface (GUI) to control the lights. Note: Because the GPIO 18 pin requires sudo on the Raspberry Pi to work, the run_lights.py script must be run with sudo. The script also has HUP and INT signal handlers, which will turn off the lights when those signals are received. If the state file does not exist, the default state is static.
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