hutasunet
commented
4 years ago Hi!
I have also searched the datasheet from the web occasionally, but I haven't found it. I have no idea what they do, but I could bet that one bridge might have something to do with handshaking (pin toggles when "master" is ready to send data etc).
I could found some info about the display from this forum, maybe you can check this out: https://picaxeforum.co.uk/threads/inexpensive-serial-surplus-lcd.20521/
If you can find the datasheet, I would appreciate it if you could share it. I could add it to this repo so everybody could find it?
EDIT: About your character issue. First check the ground cable that it's solid ground, and if you have oscilloscope check the signal quality maybe? Also note that the bits are inverted when solder-bridge S2 is removed.
Hello, I have the same 2 screen lcd controller as you do here..Do you know where to find the datasheet? Im curious what all the solder pins s1 - s6 all do. I know removing the solder from s3 increases it to 9600 and adding solder to s2 goes from odd to none. but curious about the others. I do have one problem. I cant get 5v ttl to work. I just get garbage from my arduinos etc. Tho unlike most serial issues it does show 1 character for each 1 character I type in, unfortunatley the characters it displays are wrong. The the letter "j" does seem to show correctly. None of te hex commands I send work via 5v ttl either.