LCD, extented and Labview controls

Hello

I use a LCD series (https://www.sparkfun.com/products/9395) associated with a TTL - USB converter (http://www.miniinthebox.com/fr/cp2102-usb-2-0-vers-uart-ttl-convertisseur-6pin-serie-du-module_p3910... and labview with VI No. 1.) Sending simple commands such as VI No. 1 works well. My problem is that I do not know how to send orders Extended Page 2 here https://www.sparkfun.com/datasheets/LCD/SerLCD_V2_5.PDF.

For example, as I understand the datasheet, I need to send 124 128 to disable the brightness of the screen. If I type "124 128" in VI n ° 1 the LCD displays "124128.  I get the same result with VI n ° 2.

If anyone know what I can try next?

Thanks a lot.

User1979

It seems that these values (124 and 128) are the decimal equivalent of the byte to transmit 0x7C and 0x80. It is not possible to say with certainty from your images, but most likely you send the characters of ASCII text for '1' '2' '4' and '1' '2' '8 '. Since then, they appear on the screen that is certainly what is happening.

In your second pop VI on the string constants and select hexadecimal display in the context menu. Then type the values hex 7 c and 80.

Lynn

Tags: NI Software

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