lcd i2c

[shadowlight99]

hi. i am tring to interface a 16 x 4 lcd display with a built in i2c adaptor with a pic18f4550
i cannot find any documentation anyware for it.

the product page says the i2c address of the display is "0x27 or 0x3F"

[RGV250]

Hi,
Is that all the information you have, where did you buy it or is it something you had and lost the datasheet.

Regards,
Bob

[keytapper]

the product page says the i2c address of the display is "0x27 or 0x3F

I wrote a simple scanner to find the addresses of each device connected to the I2C bus

[RayEllam]

Send a photo of the LCD. Is probably just a standard HD44?? Parallel controller with an I2C interface chip, iv seen quite a few of the for sale on the likes of EBay etc.

[John Drew]

The attached two files may help. They were written by George Towler and were on the old forum. Something to work with.
John

I2C demo.zip

[okmn]

i hope it can help to you

http://www.truevision-tech.com/character.html
https://electronics.stackexchange.com/questions/251690/using-16-x-4-alphanumeric-lcd-with-mikroc-pro-for-pic-compiler
https://electronics.stackexchange.com/questions/435370/lcd-16x4-is-shifting-the-columns-of-the-third-and-fourth-lines