Holiday lights

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We put up some holiday lights in the Mission Street windows. (We call them Holiday Lights both as an ecumenical gesture of goodwill as well as to annoy the "War on Christmas" wingnuts.)
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We put up some holiday lights in the Mission Street windows. (We call them Holiday Lights both as a gesture of ecumenical goodwill and to annoy the "War on Christmas" wingnuts.)
  
Naturally, you can control them on the web using the bare-bones interface at URL: http://lights.netisland.net:8080/
+
Naturally, you can control them on the web using the bare-bones interface at URL: http://lights.noisebridge.net/
  
 
This is served by a pure Python webserver running on a Fit-PC Ubuntu micro-PC. Lights are switched with a 8-channel serial-controlled relay board.  
 
This is served by a pure Python webserver running on a Fit-PC Ubuntu micro-PC. Lights are switched with a 8-channel serial-controlled relay board.  
 
Each of the four windows has two strings of LEDs, white and colored. Facing Mission St, the  white LEDs on the leftmost window are on channel 0, the colored ones on channel 1. The next window over has white on channel 2 and so forth.
 
Each of the four windows has two strings of LEDs, white and colored. Facing Mission St, the  white LEDs on the leftmost window are on channel 0, the colored ones on channel 1. The next window over has white on channel 2 and so forth.
  
 
+
You can find the code in [http://github.com/jbm9/batshitlights github]
Code is on
+
  
 
Basic info:
 
Basic info:
Line 21: Line 20:
 
  /home/lights/sequence
 
  /home/lights/sequence
  
The file read by filelooop.py that defines the light
+
The text file read by filelooop.py that defines the light
 
sequence currently active.  The first line of this file
 
sequence currently active.  The first line of this file
defines how long (in milliseconds) we should sleep before
+
defines how long (in milliseconds) we wait before
 
advancing to the next state.  The rest of the file is a
 
advancing to the next state.  The rest of the file is a
 
list of states to iterate through.  For example:
 
list of states to iterate through.  For example:
Line 43: Line 42:
 
the rest are off.  In the third state, the third light is
 
the rest are off.  In the third state, the third light is
 
on, and the rest are off.  etc.
 
on, and the rest are off.  etc.
 
(There's code in place in filelooop.py to also support
 
state lines in the syntax of "<state> <delay>", to sleep
 
for an amount of time different than the "global delay",
 
but I haven't actually tested this behavior yet.)
 
  
 
  /home/lights/*.seq
 
  /home/lights/*.seq
Line 71: Line 65:
 
back to / (the directory listing) after a few seconds,
 
back to / (the directory listing) after a few seconds,
 
or something.
 
or something.
 +
 +
=Direct Line=
 +
There's a really fun "direct line" into the control of the lights:
 +
 +
: http://lights.noisebridge.net/run_one?delay=1000&seq=0102040810204080
 +
: http://lights.noisebridge.net/run_one?delay=500&seq=B56F9BE6
 +
: etc
 +
 +
Hint: hex works
 +
 +
A message...
 +
 +
: http://lights.noisebridge.net/run_one?delay=500&seq=22882288220802802088a2a82a8aa2a82a0a0200000080a0a82a8aa2a82a8aa2a82a0a0280a0a82a8aa2a82a0a028020882288a2a82a8aa2a82a8a228822080200000080a0a82a8a228822882288a2a82a0a02000000802088a2a82a0a02802088a2a82a8a2288220802802088a2a82a8a22882208020000008020882288a2a82a0a02802088a2a82a8a220802000000802088a2a82a8a228822080280208822080280a0a82a8aa2a82a8a2208028020882288228822080280a0a82a0a02000000802088a2a82a0a02802088a2a82a8a2208028020080200000080a0a82a8a2288228822080280200802802088a2a82a8a228822080280a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080280a0a82a8aa2a82a8a22080200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a020000008020882288a2a82a0a02802088228822080280a0a82a8a2288a2a82a8a2288a2a82a8aa2a82a0a0200000080a0a82a8a228822882288a2a82a0a020000008020882288a2a82a0a02000000802088a2a82a0a02802088a2a82a8a2208028020080200000080a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080200000080a0a82a0a028020882288228822080280200802000000802088a2a82a8aa2a82a0a02802088a2a82a0a0280a0a82a8a2288a2a82a8aa2a82a0a0200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a0200000080a0a82a8a228822080280200802802088228822080280a0a82a0a02802088a2a82a8a2208028020882288a2a82a0a0280a0a82a8a2288a2a82a8a22080280a0a82a0a0280208822080280a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080200000080a0a82a8a228822882288a2a82a0a020000008020882288a2a82a0a0200000080208822882288220802802088a2a82a0a0280208822882288a2a82a0a028020080200000080a0a82a8a22080200000080a0a82a8a2288a2a82a8a22080280208822882288220802802088a2a82a0a0280a0a82a8a22080280a0a82a8a2288a2a82a8a2208028020080200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a0200000080208822882208028020882288a2a82a0a02802088a2a82a8a22080280208822882288a2a82a0a0280208822080280208822882288a2a82a0a028020080200000080a0a82a8aa2a82a0a02802088a2a82a0a0280a0a82a8a2288a2a82a0a02802008020000008020882288a2a82a0a02802088a2a82a8a22080200000080a0a82a0a0280208822080280a0a82a8aa2a82a0a028020080200000080a0a82a8a228822882288a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a02000000802088a2a82a8a2288a2a82a8a220802000000000000000000000000802088

Latest revision as of 23:57, 18 November 2010

We put up some holiday lights in the Mission Street windows. (We call them Holiday Lights both as a gesture of ecumenical goodwill and to annoy the "War on Christmas" wingnuts.)

Naturally, you can control them on the web using the bare-bones interface at URL: http://lights.noisebridge.net/

This is served by a pure Python webserver running on a Fit-PC Ubuntu micro-PC. Lights are switched with a 8-channel serial-controlled relay board. Each of the four windows has two strings of LEDs, white and colored. Facing Mission St, the white LEDs on the leftmost window are on channel 0, the colored ones on channel 1. The next window over has white on channel 2 and so forth.

You can find the code in github

Basic info:

/home/lights/server/filelooop.py

This is the script that runs forever, and does the Actual Work of switching the lights on and off. It reads the file /home/lights/sequence, which defines the light sequence, and then uses the RelayControl class to communicate with the external relay bank.

/home/lights/sequence

The text file read by filelooop.py that defines the light sequence currently active. The first line of this file defines how long (in milliseconds) we wait before advancing to the next state. The rest of the file is a list of states to iterate through. For example:

1000
10000000
01000000
00100000
00010000
00001000
00000100
00000010
00000001

We sleep for 1 second (1000 milliseconds) between states. Each line of 8 digits controls the relays, one char per channel. In the first state, the first light is on, and the rest are off. In the second state, the second light is on, and the rest are off. In the third state, the third light is on, and the rest are off. etc.

/home/lights/*.seq

A list of pre-programed sequences.

/home/lights/server/webserver.py

A full webserver/framework implementation, currently configured to listen on port 8080. When you request "/", it returns a list of hyperlinks to each of the *.seq files in lights's home directory. If you click on one of those links, it copies the contents from the *.seq file to /home/lights/sequence, so filelooop.py will start processing it instead of whatever it was previously processing.

/home/lights/set.html

When you use webserver.py to request a *.seq file, it "<h1>Thanks!</h1>". We should make it look pretty, and probably also have a meta refresh to redirect the user back to / (the directory listing) after a few seconds, or something.

[edit] Direct Line

There's a really fun "direct line" into the control of the lights:

http://lights.noisebridge.net/run_one?delay=1000&seq=0102040810204080
http://lights.noisebridge.net/run_one?delay=500&seq=B56F9BE6
etc

Hint: hex works

A message...

http://lights.noisebridge.net/run_one?delay=500&seq=22882288220802802088a2a82a8aa2a82a0a0200000080a0a82a8aa2a82a8aa2a82a0a0280a0a82a8aa2a82a0a028020882288a2a82a8aa2a82a8a228822080200000080a0a82a8a228822882288a2a82a0a02000000802088a2a82a0a02802088a2a82a8a2288220802802088a2a82a8a22882208020000008020882288a2a82a0a02802088a2a82a8a220802000000802088a2a82a8a228822080280208822080280a0a82a8aa2a82a8a2208028020882288228822080280a0a82a0a02000000802088a2a82a0a02802088a2a82a8a2208028020080200000080a0a82a8a2288228822080280200802802088a2a82a8a228822080280a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080280a0a82a8aa2a82a8a22080200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a020000008020882288a2a82a0a02802088228822080280a0a82a8a2288a2a82a8a2288a2a82a8aa2a82a0a0200000080a0a82a8a228822882288a2a82a0a020000008020882288a2a82a0a02000000802088a2a82a0a02802088a2a82a8a2208028020080200000080a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080200000080a0a82a0a028020882288228822080280200802000000802088a2a82a8aa2a82a0a02802088a2a82a0a0280a0a82a8a2288a2a82a8aa2a82a0a0200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a0200000080a0a82a8a228822080280200802802088228822080280a0a82a0a02802088a2a82a8a2208028020882288a2a82a0a0280a0a82a8a2288a2a82a8a22080280a0a82a0a0280208822080280a0a82a8aa2a82a8aa2a82a0a0280a0a82a8a22080200000080a0a82a8a228822882288a2a82a0a020000008020882288a2a82a0a0200000080208822882288220802802088a2a82a0a0280208822882288a2a82a0a028020080200000080a0a82a8a22080200000080a0a82a8a2288a2a82a8a22080280208822882288220802802088a2a82a0a0280a0a82a8a22080280a0a82a8a2288a2a82a8a2208028020080200000080a0a82a0a0280a0a82a8aa2a82a8aa2a82a0a0200000080208822882208028020882288a2a82a0a02802088a2a82a8a22080280208822882288a2a82a0a0280208822080280208822882288a2a82a0a028020080200000080a0a82a8aa2a82a0a02802088a2a82a0a0280a0a82a8a2288a2a82a0a02802008020000008020882288a2a82a0a02802088a2a82a8a22080200000080a0a82a0a0280208822080280a0a82a8aa2a82a0a028020080200000080a0a82a8a228822882288a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a0200000080208822882288220802802088a2a82a0a02000000802088a2a82a8a2288a2a82a8a220802000000000000000000000000802088
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