#twatch: backlight control

September 19, 2009 in #twatch | 3 comments

backlight-control

The #twatch backlight is controlled through a TCP server on port 1337. We use Herculese as our TCP client.

Connect to the #twatch TCP server at the IP address shown on the LCD screen. Send the command 0xFE 0×42 0×00 to turn on the backlight. Send the command 0xFE 0×46 to turn it off. Programs like LCD Smartie and LCDProc send these commands automatically when they start and exit.

Tags: ,

  1. Nishant on November 7, 2009 at 3:08 pm

    Hi!

    I just got a twatch unit from Seed studio. The

    ip on the unit is 169.254.1.1; subnet 255.255.0.0; gate and DNS are 169.254.1.1- is there any way to change the IP to a 192.168.1.x series as that is what my home network is on. I know most of the documentation on your site says this is what it should be but the unit i just recieved has tehse settings as the default.

    I tried changing the ip of my laptop to connect using Hercules but it only connects on port 80; if i send the command when connected like this it refuses the connection.

    Please help.

    Thanks

    Reply

  2. Ian on November 7, 2009 at 3:13 pm

    Hi Nishant – Does your home network have a DHCP server? The #twatch requires a DHCP server to acquire an IP address.

    Reply