blinken | js based controller for large arrays
kandi X-RAY | blinken Summary
kandi X-RAY | blinken Summary
We are working with strands of Adafruit WS2801 LED pixels, configured in a grid installed on ceiling tiles. For more information on basic wiring and led function, see Adafruit's tutorial. We're using a NodeJS v0.10.5 server on a Raspberry PI Model B with a breakout kit to drive the array.
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Community Discussions
Trending Discussions on blinken
QUESTION
I am trying to write a function to calculate R1 lexical richness measure. The formula is as follows:
R1 = 1 - ( F(h) - h*h/2N) )
where N is the number of tokens, h is the Hirsch point, and F(h) is the cumulative relative frequencies up to that point. my actual data is in the same format as the data below:
...ANSWER
Answered 2021-Apr-21 at 08:26Order them by the integer values in the element names, after stripping the "text" part.
QUESTION
My python script has two main steps:
Open two webbrowser tabs (default browser). And let a LED blink.
When i am executing the python script via shell with "python netflix.py" everything works fine. But when i am trying to start it via my (see below) NodeJS script. Only the LED will be blink. The webbrowser tabs won't come up.
Does anyone know where the issue is?
...ANSWER
Answered 2020-Jan-24 at 07:46Fixed: Well, I made a workaround.
First, I split the python script into two scripts. Webbrowser and LED script, to avoid any kind of interruptions or something else. Second, I changed the webbrowser to:
QUESTION
I wrote a function to let a LED blink with variable parameters. The code looks like this:
...ANSWER
Answered 2018-Mar-15 at 09:17I see you've imported Thread
, so something like this might do the trick(with a grain of salt here, I don't have my rpi around so I can't test it):
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No vulnerabilities reported
Install blinken
Build/install node modules: cd driver && npm install
Start server: sudo node index.js
Open Chrome (or other browser capable with Web Sockets support) and visit http://leds.dev:8888/
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