LCD Anag Vision

[i_make_it]

Wenn Du stabilisierte 5V hast, schließ doch Varinate 1 über J1 - J2 an.
Versorgt dann das Display und das Backlight in einem.

http://www.produktinfo.conrad.com/da...eichen_LED.pdf

B/L driven by pin1 and 2 or 15 and 16 or A and K

No. Symbol Function
1 Vss Gnd, 0V
2 Vdd +5V
15 A* 4.2V for LED
16 K Power Supply for LED 0V

USAGE OF LED BACKLIGHT
THERE ARE THREE POSSIBILITIES TO USE LED BACKLIGHT IN ANAG VISION CHARACTER MODULES.

- DRIVING THE LED THROUGH A CURRENT LIMITING RESISTANCE (RA) WHICH IS ALREADY INCLUDED IN THE LCM, BY EXTERNAL 5V TO J1 AND J2 BETWEEN PIN 1 AND PIN 2.

- PROVIDING 5V BY PIN 15 AND 16 OF THE INTERFACE TO DRIVE THE LED, J15 AND J16 MUST BE SHORTENED AND RA = 3~7 OHMS IN THIS CASE.

- PROVIDING 4.2V BY DIRECT CONNECTION TO THE LED THROUGH A CURRENT LIMITING RESISTANCE.