raspberry pi 1602 serial blue backlight lcd module for sale

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ERMC1602SBS-2 is 16 characters wide,2 rows character lcd module,SPLC780C controller (Industry-standard HD44780 compatible controller),6800 4/8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,stn- blue lcd negative,white text on the blue 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.

It"s easily controlled by MCU such as 8051,PIC,AVR,ARDUINO,ARM and Raspberry Pi.It can be used in any embedded systems,industrial device,security,medical and hand-held equipment.

The principle of the LCD1602 liquid crystal display is to use the physical characteristics of the liquid crystal to control the display area by voltage, that is, the graphic can be displayed.

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 with other voltages are permitted. It can be operated as long as it supports the I2C development board.

Features: Easy to use; Less I/O ports are occupied; Support IIC Protocol; The I2C LCD1602 library is easy to get; With a potentiometer used to adjust backlight and contrast; Blue backlight; Power supply: 5v; I2C address is: 0x27.

How to connect it to Raspberry Pi and Ar-duino Compatibility Used for connecting Ar-duino and Raspberry pi and it can be used to display real time clock, temperature, humidity etc.

You can display the digital information or English sentense on the LCD screen by using Arduino, Raspberry Pi or other MCU which supports i2c protocol.

The credit card sized Raspberry Pi computer gives all the opportunity to experiment and explore IoT. I wrote getting started with IoT using Raspberry Pi and PHP a while back. Now I thought of extending that and write about my hobby projects that I do with Raspberry Pi.

Raspberry Pi is my hobby and I thought of sharing with you about these tiny projects. This will be a multi article series. Let us start with how to connect a I2C LCD display with the Raspberry Pi.

I2C is a serial bus developed by Philips. So we can use I2C communication and just use 4 wires to communicate. To do this we need to use an I2C adapter and solder it to the display.

I2C uses two bidirectional lines, called SDA (Serial Data Line) and SCL (Serial Clock Line) with 5V standard power supply requirement a ground pin. So just 4 pins to deal with.

When you buy the LCD module, you can purchase LCD, I2C adapter separately and solder it. If soldering is not your thing, then it is better to buy the LCD module that comes with the I2C adapter backpack with it.

The above image is backside of a 2004 LCD module. The black thing is the I2C adapter. You can see the four pins GND, VCC, SDA and SCL. That’s where the you will be connecting the Raspberry Pi.

Switching off the backlight may not be necessary. If you switch off, the characters will be barely visible. You can keep it on 24×7, it will not eat up power as it is a low power consumption device.

Raspberry Pi GPIO pins are natively of 3.3V. So we should not pull 5v from Raspberry Pi. The I2C LCD module works on 5V power and to make these compatible, we need to shift up the 3.3V GPIO to 5V. To do that, we can use a logic level converter.

You might see RPIs connected directly to a 5V devices, but they may not be pulling power from RPI instead supplying externally. Only for data / instruction RPI might be used. So watch out, you might end up frying the LCD module or the RPI itself.

Why am I recommending the official power adapter! There is a reason to it. The cheap mobile adapters though guarantee a voltage, they do not provide a steady voltage. That may not be required in charging a cellphone device but not in the case of Raspberry Pi. That is the main reason, a USB keyboard or mouse attached does not get detected. They may not get sufficient power. Either go for an official power adapter or use the best branded one you know.

I have a headless setup. I am doing SSH from my MAC terminal and use VIM as editor. VNC viewer may occasionally help but doing the complete programming / debugging may not be comfortable. If you do not prefer SSH way, then you will need a monitor to plug-in to Raspberry Pi.

As you know my language of choice to build website is PHP. But for IoT with Raspberry Pi, let us use Python. Reason being availability of packages and that will save ton of effort. Low level interactions via serial or parallel interface is easier via Python.

Following code imports the RPLCD library. Then initializes the LCD instance. Then print the “Hello World” string followed by new line. Then another two statements. Then a sleep for 5 seconds and switch off the LCD backlight. Finally, clear the LCD screen.

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.

This is LCD 1602 Parallel LCD Display that provides a simple and cost-effective solution for adding a 16×2 White on Liquid Crystal Display into your project. The display is 16 character by 2 line display has a very clear and high contrast white text upon a blue background/backlight.

This is great blue backlight LCD display. It is fantastic for Arduino based project. This LCD1602 LCD Display is very easy to interface with Arduino or Other Microcontrollers.

This display overcomes the drawback of LCD 1602 Parallel LCD Display in which you’ll waste about 8 Pins on your Arduino for the display to get working. Luckily in this product, an I2C adapter is directly soldered right onto the pins of the display. So all you need to connect are the I2C pins, which shows a good library and little of coding.

The I2C is a type of serial bus developed by Philips, which uses two bidirectional lines, called SDA (Serial Data Line) and SCL (Serial Clock Line). Both must be connected via pulled-up resistors. The usage voltages are standard as 5V and 3.3V.

If you already have the I2C adapter soldered onto the board like in this product, the wiring is quite easy. You should usually have only four pins to hook up. VCC and GND of course. The LCD display works with 5 Volts. So we go for the 5V Pin.

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The 16x2 is the most commonly used LCD display module. It can display 16 characters in a column for 2 rows thus a total of 32 characters. The characters can either be number, alphabets or symbol. It is also possible to create your own custom character and display it if required. The LCD has the HD44780U display driver IC which is responsible for displaying characters on the LCD

This 16x2 LCD display has a blue background and back light which makes it unique and more visible than the commonly used green color. If you need the green backlight you can use this Green Backlight LCD. The required supply voltage is from 4.7V to 5.3V and the LCD can operate either in 8-bit mode or in 4-bit mode allowing you to save more GPIO pins on the controller side. The current consumption is about 1mA without the back light.

The 16x2 LCD pinout diagram is shown below. As you can see the module has (from right) two power pins Vss and Vcc to power the LCD. Typically Vss should be connected to ground and Vcc to 5V, but the LCD can also operate from voltage between 4.7V to 5.3V. Next, we have the control pins namely Contrast (VEE), Register Select (RS), Read/Write (R/W) and Enable (E). The Contrast pin is used to set the contrast (visibility) of the characters, normally it is connected to a 10k potentiometer so that the contrast can be adjusted. The Read/Write pin will be grounded in most cases because we will only be writing characters to the LCD and not read anything from it. The Register Select (RS) and Enable pin (E) pin are the control pins of the LCD and will be connected to the digital pins GPIO pins of the microcontroller. These pins are used to instruct the LCD where place a character when to clear it etc.

From DB0 to DB7 we have our eight Data Pins which are used to send information about the characters that have to be displayed on the LCD. The LCD can operate in two different modes, in the 4-bit Modeonly pins DB4 to DB7 will be used and the pins DB0 to DB3 will be left idle. In 8-bit Mode, all the eight-pin DB0 to DB7 will be used. Most commonly the 4-bit mode is preferred since it uses only 4 Data pins and thus reduces complexity and GPIO pin requirement on the microcontroller.Finally, we have the LED+ and LED- pins which are used to power the backlight LED inside our Display module. Normally the LED+ pin is connected to 5V power through a 100 ohm current limiting resistor and the LED- pin is connected to Ground.

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