2024111 — The increase in render resolution versus actual native resolution is a form of anti-aliasing. It is typically known as Supersampling.

Hi! Please, someone can explain exactly to each of these pins of the display I2C (GND, VCC, SDA, SCL) which corresponds to the pin of old LCD (DB4, DB5, DB6, DB7, E, RW, RS, V0, VDD, VSS )?

ATSEL

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EDIT: cattledog was little bit faster. I think, fmalpartida's library for LCD is pretty good and complex. I am recommending this. https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads

BrainchildHMI

HMI4.3inch

thanks for the reply! I'll explain my problem: I would like to do this project: http://www.instructables.com/file/FAZQGW7HOW0HQ7S (or http://www.instructables.com/file/FVBC6TYHOW0HQ7H) but I have a display with I2C ... how can I do? Which PIN I have to connect and which are not? Where? Can you help me?

You can use also I2C display for this project. Arduino has I2C (SCL, SDA). In this case you can connect display to these pins and in the program you have to modify LCD to I2C version. It uses LiquidCrystal library. So simple modification should work.

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eX707

Most likely your I2C display is actually a standard parallel device that has a separate I2C adapter board. You could unsolder the adapter board (not a trivial task) and just use the display board by itself but it would be far easier to just buy a new display.

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If you need to connect standard LCD via I2C you have to use additional module which converts signals as I wrote already. Try to google and you will obtain lots of results for such module.

eSMART07M

LCD: DB4-DB7 ~ four high bidirectional data lines E ~ enable to read/write RW ~ read/write mode RS ~ register selection VO ~ LCD operating voltage

Thanks! The Library had already seen something and how to change But specifically I would know exactly which pins connect to bradbord and which to discard (like the link that I post) and where connect them.

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There is a Forum Search box at the top right of this webpage. Some key terms will be "i2c display" "fmalpartida i2c library" and "Bill Perry i2cLCD guesser".

PortableHMI

2.8" TFT RGB LCD display with 240 x 320 pixels. Uses ILI9341 controller with SPI interface. Includes resistive touchscreen with XPT2046 controller.

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There is a big difference. Simply, no one of signals is corresponding (except of VCC, GND and VDD, VSS - power supply, but it is no signal in fact). Standard LCD has an parallel data bus and I2C is serial data bus. You cannot interconnect these directly.

You have to modify the instructables code to use the i2c display instead of the parallel display with a change of library and constructor. All the lcd.print() and cursor instructions in the code should work with either display.

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