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 0x42 0x00 to turn on the backlight. Send the command 0xFE 0x46 to turn it off. Programs like LCD Smartie and LCDProc send these commands automatically when they start and exit.
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
Hi Nishant – Does your home network have a DHCP server? The #twatch requires a DHCP server to acquire an IP address.
There’s a firmware upgrade with the backlight enabled by default:
http://dangerousprototypes.com/2009/11/13/twatch-firmware-with-backlight-enabled/