The white-on-blue screen that shipped with the #twatch really requires the backlight to be visible. Here’s an updated firmware that has the backlight on at power-up. The new firmware is loaded over the network using tools already available in most operating systems, Windows instructions here. We apologize for the lack of refinement. We prototyped with […]
Tag Archives: backlight
#twatch backlight control from Python
It looks like the #twatch is starting to arrive worldwide. WA5ZNU received a #twatch and wrote a Python script to control the backlight. You can use this thread to discuss your #twatch unboxing experience. There’s still a few #twatches at Seeed Studio for immediate delivery, $45 including LCD and worldwide shipping.
#twatch: 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 0x42 0x00 to turn on the backlight. Send the command 0xFE 0x46 to turn it off. Programs […]