lcd module 20x4 i2c supplier

SPECIFICATIONI2C Address: 0x3F or 0x27Number of Characters: 20 characters x 4 LinesBlue LED backlight with white font colorAdjustable contrastSupply voltage: 3.3VInterface: I2C 400KhzDot size: 0.55 x 0.55 mmDot pitch: 0.60 x 0.60 mmCharacter size: 2.96 x 4.75 mmCharacter pitch: 3.55 x 5.35 mmSize: 98x60x22mm

A 20×4 dot matrix Character LCD Module display in STN Negative Blue LCD Mode, Six O’clock viewing direction, Wide Temperature Range (Operating Temp: -20°C to 70°C, Storage Temp: -30°C to 80°C), and White LED Backlight. It has a transmissive polarizer suitable for darker environment. This product is assembled Chip On board with 1/16 Duty and a Controller IC AC780S or equivalent. The interface type is Serial – I2C or IIC. This is an ROHS Compliant product manufactured with ISO standards and procedures.

The display is composed of a 20 character x 4 line LCD display with a blue backlight and white characters.  Each of the characters are composed of a 5 x 8 dot matrix for good character representation.

The backlight intensity is not directly controllable though the I2C interface, however there is a jumper on the I2C board that supplies power to the backlight.  That jumper can be removed and a voltage applied to the header pin nearest the ‘LED’ markings on the board to provide power to the backlight separately.

The backlight can go down to about 3V before it goes out.  It is not known what the safe upper limit is for driving the LCD backlight so it is probably best not to exceed 5V by too much.  At 5V, the backlight draws about 30mA, so it should also be possible to drive it with a PWM pin off a uC to allow the display to be dimmed via software if desired.

This display incorporates an I2C interface that requires only 2 pins on a uC to interface with and it has good library support to get up and running fast.   The I2C interface is a daughter board attached to the back of the LCD module.

If you need to adjust I2C address to avoid a conflict, this can be done on the I2C adapter board on the back of the module.  There are 3 address jumper locations marked A0, A1, A2.  Normally these lines are pulled high.  If you bridge these pads, it grounds that address line.  If you were to bridge all 3 to ground, the address would be 0x20.  The range of all possible addresses spans from 0x20 to 0x27

These are good quality modules and should be in the parts bin of any hobbyist.  Because of the interactivity they provide, they are both fun to play with and useful for more serious projects.

You will find the raw 20×4 displays without the I2C interface being sold, but those have a parallel bus interface that requires many pins on the microcontroller to control, so it is generally best to stick with the I2C interface version like this one.

Note that the I2C address of the module we sell is 0x27 (39 decimal) but can be adjusted if needed as explained above.  The address will be printed on the label on the bag.

ERM2004SYG-2 is 20 characters wide,4 rows character lcd module,SPLC780C controller (Industry-standard HD44780 compatible controller),6800 4/8-bit parallel interface,single led backlight with yellow green color included can be dimmed easily with a resistor or PWM,stn-lcd positive,dark blue text on the yellow green color,wide operating temperature range,rohs compliant,built in character set supports English/Japanese text, see the SPLC780C datasheet for the full character set. It"s optional for pin header connection,5V or 3.3V power supply and I2C adapter board for arduino.

As we all know, though LCD and some other displays greatly enrich the man-machine interaction, they share a common weakness. When they are connected to a controller, multiple IOs will be occupied of the controller which has no so many outer ports. Also it restricts other functions of the controller. Therefore, LCD2004 with an I2C bus is developed to solve the problem.

I2C bus is a type of serial bus invented by PHLIPS. It is a high performance serial bus which has bus ruling and high or low speed device synchronization function required by multiple host system. I2C bus has only two bidirectional signal lines, Serial Data Line (SDA) and Serial Clock Line (SCL). The blue potentiometer on the I2C LCD2004 is used to adjust backlight to make it easier to display on the I2C LCD2004.

I²C (Inter-Integrated Circuit), pronounced I-squared-C, is a multi-master, multi-slave, single-ended, serial computer bus invented by Philips Semiconductor (now NXP Semiconductors). It is typically used for attaching lower-speed peripheral ICs to processors and microcontrollers. Alternatively I²C is spelled I2C (pronounced I-two-C) or IIC (pronounced I-I-C).

I²C uses only two bidirectional open-drain lines, Serial Data Line (SDA) and Serial Clock Line (SCL), pulled up with resistors. Typical voltages used are +5 V or +3.3 V although systems I²C (Inter-Integrated Circuit), pronounced I-squared-C, is a multi-master, multi-slave, single-ended, serial computer bus invented by Philips Semiconductor (now NXP Semiconductors). It is typically used for attaching lower-speed peripheral ICs to processors and microcontrollers. Alternatively I²C is spelled I2C (pronounced I-two-C) or IIC (pronounced I-I-C).

3) Find the file LiquidCrystal_I2C which you just download. Click it open and then you"ll be prompted by "Library added to your libraries. Check "Import libraries"”. You also can see the libraries just imported have appeared on the list by Sketch->Include Library->LiquidCrystal_I2C.

If everything is correct,But the display just shows 16 black rectangles on Line 1.it may be the address of i2c is not 0x27,therfore you need to run the following code to read the address,then modify the 0x27 to which you read.

This is a 20x4 Arduino compatible LCD display module with high speed I2C interface. It is able to display 20x4 characters on two lines, whitecharacterson blue background.

Generally, LCD display will run out of Arduino pin resource. It needs 6 digital pins and 2 power pin for a LCD display. If you want to build a robot project, it will be a problem with Arduino UNO and LCD display.

This I2C 20x4 LCD display module is designed for Arduino microcontroller. It is using I2C communication interface, With this I2C interface, only 2 lines (I2C) are required to display the information on any Arduino based projects. It will save at least 4 digital / analog pins on Arduino. All connector are standard XH2.54 (Breadboard type). You can connect it with jumper wire directly.

This 1602 LCD module has 8 I2C address in all, from 0x20 to 0x27. You can set one according to your requirements, avoiding the confliction of I2C address. And its contrast can be adjusted manually.

The LCD has always been a device that acts as a window in human-computer interaction. For example, the prompt window on some instrument devices, the temperature and humidity prompt box, the device running status monitor, and the prompt screen of the counting device all have LCD figures.

It is a high-performance serial bus with bus rules and high-speed or low-speed device synchronization required for multi-master systems. The I2C bus has only two bidirectional signal lines, a serial data line (SDA) and a serial clock line (SCL).

This module is an Arduino compatible LCD display module with high speed I²C interface. It can display 20×4 characters (white characters on a blue background).

If your current LCD is frustrating you because it occupies all your GPIO pins and lacks characters" space, it is time to replace it with this one. This LCD Display Module uses an I2C communication interface, which only needs 2 wires to display information on any microcontroller-based project, including the Arduino. It is capable of displaying 4 lines of 20 white characters on a blue background. Moreover, it is compatible with either 3.3V or 5V logic systems, which is basically everything in programmable electronics.