How to?: Send VT100 command via FullDuplexSerialPlus object

SteveWoodrough

Please excuse my ignorance. I tried searching this in Google and in the forum and came up empty. I need to send the VT 100 clear screen command to a terminal emulator. I am able to send text and numbers from my Prop via BT to my Android phone running the BlueTerm application.

I’m accustomed to sending serial data to an LCD where of course sending fds.tx(16) will clear the screen and home the cursor. That same approach does not work with BlueTerm. Apparently I need to transmit the VT100 command “ <ESC>[2J “ .

What would my FullDuplexSerialPlus method call look like? fds.tx(???)

Best Regards,
Steve

kuroneko

Have you tried fds.str(string(27, "[2J"))?

Duane Degn

SteveWoodrough wrote: »

Apparently I need to transmit the VT100 command “ <ESC>[2J “ .

What would my FullDuplexSerialPlus method call look like? fds.tx(???)

I'm pretty sure escape is ASCII character # 27.

I think this would do it.

ser.str(string(27,"[2J"))

SteveWoodrough

Thanks guys. I'll give it a go and report back.
Steve

SteveWoodrough

Sweet!!! That works. I got a bunch of cheap $5 BT modules that I mounted on boards and an old phone. I can cram a lot more data at 115200 onto the phone display vs a 4 x20 LCD. This just opened up a whole lotta possibilities.

Latest wireless vision project video:
https://www.youtube.com/watch?v=UZe48U0K89k

Regards,
Steve

Duane C. Johnson

Hi Steve;
Here are a bunch of codes:

ESC "[H"       REM Curser to Home
ESC "[2J"      REM Erase Display
ESC "[0K"      REM clear-eol
ESC "[1K"      REM clear-bol
ESC "[2K"      REM Erase Entire Line
ESC "[3A"      REM ^  Curser Up 3
ESC "[4B"      REM v  Curser Down 4
ESC "[5C"      REM -> Curser Forward 5
ESC "[6D"      REM <- Curser Backward  6
ESC "[s"       REM Save Cursor Position
ESC "[u"       REM Restore Cursor Position
ESC "[0m"      REM Cursor Normal (Reset)
ESC "[1m"      REM Bold
ESC "[1;34m"   REM Bold Blue
ESC "[30m"     REM Black
ESC "[31m"     REM Red
ESC "[32m"     REM Green
ESC "[33m"     REM Yellow
ESC "[34m"     REM Blue
ESC "[35m"     REM Magenta
ESC "[36m"     REM Cyan
ESC "[37m"     REM White

Duane J