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Now I understand arrays variable. Thank you for your patience and explanation!

Now display the x value on LCD , like "hello 012" .

In main loop, the text is scrolling from right to left on 2 lines.


SCL VAR PORTC.0
SDA var PORTC.1
Reset var PORTC.2
x var...

Nothing on LCD: I2CWRITE SDA, SCL,com,$40, x
In ST7036 manual I not found how I can display a decimal number.

I'm back after exactly 1 year. :)
I changed the 16LF1824 with 16F1503 and now LCD is working !
Many thx to Dave and Robert !

Now I need again a your help. How i can display a variable ? (for...

Each time I verified with 4k7 and 1k. I made 2 different boards for tests.
I found on market LCD with 7036i controller with own datasheet. I hope that in 2 weeks I'll receive it.

Incredible but real !
Don't work!
I tried initializing by internal reset circuit, also I tried initialising by instructions...nothing on LCD!
One time appeared "@ello" ...i disconected the Vcc,...

'********************************************************************************
IdleLoop:
I2CWRITE PORTC.1, PORTC.0,$78,[$00, $39,$14,$79]
pause 250
goto Idleloop
end[/CODE]

With this...

I tried ...
if I write the PIC and turn ON the board with Vcc = 3,6V I see on LCD this:
7621
...then I move the Vcc to 5V, on LCD appear :
7622
In this case I can set a contrast from 5k...

Working first code :

'****************************************************************
'* Name : UNTITLED.BAS *
'* Author : Dave Cutliff ...

Dave, with your last example code nothing help. I insert pause 250 between instructions and appear something like this : "ell o Hello " on LCD, but a very low contrast.i have not enough free time to...

You are right Dave !

All LCD's was a gift for me from a friend. He gave me a printed paper with sumary of LCD(7pins):
- Display Type : TM202SIFSUGWA
- LCD OPERATING VOLTAGE : 4.8V
- VDD : 5V...

1000 x thx Dave for your help!
I tried all your suggestions, but nothing on display. Also I changed 3 lcds for test ,I tried another ways to initialise, but no succes.
I can make a photo at high...

Thx Dave, I tried but nothing!
I tried a code for 7036i controller, with V0 connected to Vdd , but I feel that somewhere I'm wrong in DEFINE LCD .
I know that your help eat a lot of time, but if...

I measured on working original board with ST7036i controller , 5V Vdd :
V0 pin = 3,82V (voltage from a divider with 2 resistors)
SDA = 150 ohm resistor between PIC pin and SDA LCD pin
SCL ...

For me is too hard because I write in basic code only few lines in my life. Your start point is welocome for me.
I appreciate your help Robert! Thank you very much!

Really I have more different LCD display's, with 7 and 8 pins.
I tried with:
- 8 pins LCD (TM202TCCWUGWA) ...I suppose that have ST7032i controller
- 7 pins LCD (TM202SGFSGWA-B-1A ) ...I'm sure...

So , I found a working factory motherboard with LCD ( 7 pins) , TM202SIFSUGWA ,with ST7036i controller .
I measured the voltage on pin V0 =3.87 V , then I desoldered the lcd and I tried to set...

Thx Robert for suggestion ..I tried like schematic, but nothing...
A question : on this LCD type I must see a dots when I play cu variable resistor ? Or first time ,lcd must be initialized ?
...

Merry XMAS to all!
I'm back with another problem. Its first time when I work with I2C .
I have a 1x LCD with 8 pins, I suppose that have a controller ST7036i or ST7032i (pin2, pin3 = NC) and also...