Is there a way to read a .txt file when the program is already launched?

[sydneybeaulieu]

I know that to read a file I have to do ./ws2812svr -f text_file.txt , but can I read a file after I have run the init command

[Loxitation]

sure you can, thats what I do in my shows. Doing it with php files.

After reboot my Pi inits the led's, then waits.

My textfile is idle.txt:

thread_start set_thread_exit_type 0,0 fade 1,255,0,50,10,0 render rainbow 1,1,0,40,0,223 render fade 1,0,100,50,10,0 brightness 1,100 render do rotate 1,1 render delay 20 loop render thread_stop

and my php looks like this:

`<?php

send_to_leds(" thread_start set_thread_exit_type 0,1 fill 1,000000 render brightness 1,100 rainbow 1,1,0,255,0,223 render do rotate render delay 20 loop 400

fill 1,000000 brightness 1,000 render thread_stop "); function send_to_leds ($data){ $sock = fsockopen("192.168.178.53", 9999); fwrite($sock, $data); sleep(9); fclose($sock);

$filename = "idle.txt"; $fp = fopen($filename, "r"); $content = fread($fp, filesize($filename));

start_idle("$content "); }

function start_idle($data){ $sock = fsockopen("192.168.178.53", 9999); fwrite($sock, $data); fclose($sock); } ?>`

the 192.168.178.53 is my pi. This code starts a rainbow effect, rotates it for 9 secs, then loads in the idle.txt and proceeds with it.

[tom-2015]

If you don't want to use PHP start the program with -p flag to create a named pipe:

sudo ./ws2812svr -p /dev/ws281x

This will create a file /dev/ws281x reading a file and sending the contents to /dev/ws281x:

cat /home/pi/my_commands.txt > /dev/ws281x

replace /home/pi/my_commands.txt with the location of your file containing commands

[sydneybeaulieu]

okok thank you a lot