Solved: Using these feature in pure shell script (e.g. in OpenWRT)

[chros73]

Hi!

It's not an issue, but rather I want to say a big Thank You! :)

I have bought couple of Easybulb rgbw bulbs a half a year ago and I didn't know to to communicate with them. All I wanted to do is:

• turn them on at a specified time via cron on OpenWRT (since this Linux flavor is always running inside the network), since the inbuilt scheduling feature was buggy (let's say unreliable) in the android app.

I couldn't do so far, until I've found your code :) :

• there's an API on their website (http://easybulb.com/api/) , but didn't work at all
• their app using internet as well (but what happens if something wrong with the connection?), and feature was buggy
• tried to contact with the company couple of times, but I didn't get any answer back

Based on your API, here's a simple script on OpenWRT Chaos Chalmer, called e.g. manageEasybulb.sh, what we can use in cron (maybe it will be useful for somebody else as well):

#!/bin/sh
# required packages: netcat coreutils coreutils-sleep

rgbwGroup1On='\x45\x00'
rgbwBrightness80='\x4e\x16'
rgbwSetColorToYellowOrange='\x40\x90'
# last byte is always \x55, will be appended to all commands
lastByte='\x55'

HOST='192.168.10.50'
PORT='8899'

sendCommand() {
    # nc switches: -n: don't resolve dns , -u: use udp , -c: terminate after execution
    printf "$1$lastByte" | /usr/bin/nc -n -u -c "$HOST" "$PORT"
    /usr/bin/sleep 0.3
}

turnOnG1YellowOrange80() {
    sendCommand $rgbwGroup1On
    sendCommand $rgbwSetColorToYellowOrange
    sendCommand $rgbwBrightness80
}

turnOnG1YellowOrange80

[yasharrashedi]

Hi
The easy solution:
create a php file, add desired functionality using my class and create a cron to run this php file. (install php on your OpenWRT before doing this)

As I'm not very good in bash script I recommend you to visit (FYI: limitlessled and easybulb have the same hardware spec and use the same API)
http://www.limitlessled.com/dev/
http://smileytechadventures.blogspot.co.nz/2013/07/control-limitless-led-from-linux-bash.html

#!/bin/bash 

if [ -z "$1" ] ; then 
    echo "You must enter a parameter: "  
    echo "  e.g. $0 allon" 
    exit 1 
fi 

incmd="$1" 
ipaddress="255.255.255.255" 
portnum="8899"

allon="\x42\00\x55" 
alloff="\x41\00\x55" 

#note for disco commands these will impact the group you are currently in for example if you previously typed "./bashlight group2on" then 
#when you turn on disco it will only affect group 2, if you want disco to apply to all then type "./bashlight allon" first

discoon="\x4D\00\x55" 
discofaster="\x44\00\x55" 
discoslower="\x43\00\x55"
discomode="\x4D\00\x55"

group1on="\x45\00\x55"
group1off="\x46\00\x55"

group2on="\x47\00\x55"
group2off="\x48\00\x55"

group3on="\x49\00\x55"
group3off="\x4A\00\x55"

group4on="\x4B\00\x55"
group4off="\x4C\00\x55"

#Set all to white
allwhite="\xC2\00\x55"

#Set Group 1 to white
group1white="\xC5\00\x55"
group2white="\xC7\00\x55"
group3white="\xC9\00\x55"
group4white="\xCB\00\x55"

#Working (range: 2 to 27 need to work out Hexidecimal eg Hexidecimal 1B is Decimal 27
#note this will impact the group you are currently in for example if you previously typed "./bashlight group2on" then 
#when you adjust the brightness it will only affect group 2, if you want the brightness to apply to all groups then type "./bashlight allon" first

#Special NOTE #1: The LimitlessLED bulb remembers its own Brightness setting memory separately for ColorRGB and separately for White. 
#For example dimming Green, then switching to White full brightness, and when you go back to a specific color the brightness returns 
#to what the ColorRGB was before. Same vice versa for the White. The previous brightness setting is remembered specifically for the 
#White and specifically for the ColorRGB.

brightest="\x4E\x1B\x55"
lowest="\x4E\x02\x55"
half="\x4E\xd\x55"

#Colours

#    0x00 Violet
#    0x10 Royal_Blue
#    0x20 Baby_Blue
#    0x30 Aqua
#    0x40 Mint
#    0x50 Seafoam_Green
#    0x60 Green
#    0x70 Lime_Green
#    0x80 Yellow
#    0x90 Yellow_Orange
#    0xA0 Orange
#    0xB0 Red
#    0xC0 Pink
#    0xD0 Fusia
#    0xE0 Lilac
#    0xF0 Lavendar

# Note there are more colours (0-255) in between, this color chart is just steps of 16.
# and they are incrementing by 10 so example mint is 40 but you could use 41 42 43 44 45 etc for the in between colours

#First byte x40 says change colour , second byte is the colour that you want.

#Usage note when using these commands they will impact the current active group for example if you previously typed "./bashlight group2on" then 
#when you adjust the colour it will only affect group 2, if you want the colour to apply to all then type "./bashlight allon" first
#or if you wanted to make only group 1 red then type "./bashlight group1on" first then "./bashlight col_red"

col_violet="\x40\x00\x55"
col_royal_blue="\x40\x10\x55"
col_baby_blue="\x40\x20\x55"
col_aqua="\x40\x30\x55"
col_mint="\x40\x40\x55"
col_mint2="\x40\x45\x55"
col_seafoam_green="\x40\x50\x55"
col_green="\x40\x60\x55"
col_lime_green="\x40\x70\x55"
col_yellow="\x40\x80\x55"
col_yelloworange="\x40\x90\x55"
col_orange="\x40\xA0\x55"
col_red="\x40\xB0\x55"
col_pink="\x40\xC0\x55"
col_fusia="\x40\xD0\x55"
col_lilac="\x40\xE0\x55"
col_lavendar="\x40\xF0\x55"

eval incmd=\$$incmd 

echo -n -e "$incmd" >/dev/udp/"$ipaddress"/"$portnum"

[yasharrashedi]

and also this may help you

http://iqjar.com/jar/wake-up-gently-to-gradually-increasing-light/

[chros73]

Thanks, I went through quickly all the links you gave me :)
Maybe I wasn't straightforward enough in my 1st post: that IS the solution which is working! :)
(I didn't want to use bash since it's not available on lot's of platforms, I wanted to make it more general.)
And, yes, I didn't know that Easybulb is just a rebranded limitless bulb :)
Thank you, again!

[yasharrashedi]

I read your comment again and got it . Thank you for sharing your solution.

[chros73]

One more thing, about how portable that script is (using your approach): it took me half an hour to port it to Windows :) (I'm using Windows 8.1 x64), including finding the ported necessary nc and printf commands.

• nc from here (we can use the without -e version): http://joncraton.org/blog/46/netcat-for-windows/
• printf from the unixutils: http://unxutils.sourceforge.net/
• copy them into c:\Windows directory

And the batch scripts, save them into a directory:
EasybulbVariables.cmd

ECHO Off
REM Easybulb variables
SET rgbwGroup1On="\x45\x00"
SET rgbwGroup1Off="\x46\x00"
SET rgbwSetColorToYellow="\x40\x80"
SET rgbwBrightness80="\x4e\x16"

SET host="192.168.10.50"
SET port="8899

SET nc=nc -n -u -w1  %host% %port%
SET printf=printf

EasybulbTurnOn.cmd

ECHO Off
REM Turn On group 1, set colour and brightness
call EasybulbVariables.cmd
%printf% %rgbwGroup1On% | %nc%
%printf% %rgbwSetColorToYellow% | %nc%
%printf% %rgbwBrightness80% | %nc%

EasybulbTurnOff.cmd

ECHO Off
REM Turn Off group 1
call EasybulbVariables.cmd
%printf% %rgbwGroup1Off% | %nc%

Create a desktop shortcut for EasybulbTurnOn.cmd and EasybulbTurnOff.cmd and there you go: "Let there be light" or dark! :)

And let me thank you one more time: that was exactly what I have been looking for half a year!

[mrwhale]

https://github.com/mrwhale/limitlessled-bash

Here is a bash script I wrote for this purpose, I use it with my raspberry pi and cron. Should also work on openwrt and any other *nix OSes too!

[chros73]

Thanks mrwhale, if I knew about your script I wouldn't have to reinvent the wheel :)
1 note: ash shell on openwrt doesn't support arrays, for example, who knows what else. That's why I wanted to make it generic.
I like the way how you fallback from bash builtin to nc when sending data.
Thanks for you script!