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The 16x2 Alphanumeric LCD Display Module is equally popular among hobbyists and professionals for its affordable price and easy to use nature. As the name suggests the 16x2 Alphanumeric LCD can show 16 Columns and 2 Rows therefore a total of (16x2) 32 characters can be displayed. Each character can either be an alphabet or number or even a custom character. This particular LCD gas a green backlight, you can also get a Blue Backlight LCD to make your projects stand our and visually appealing, apart from the backlight color both the LCD have the same specifications hence they can share the same circuit and code. If your projects require more characters to be displayed you can check the 20x4 Graphical LCD which has 20 Columns and 4 Rows and hence can display up to 80 characters.
Specifications of 16x2 LCD Display Module:
- Operating Voltage: 4.7V to 5.3V
- Operating Current 1mA (without backlight)
- Can display (16x2) 32 Alphanumeric Characters
- Custom Characters Support
- Works in both 8-bit and 4-bit Mode
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 Mode only 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.
Pin Description of 16x2 LCD Display:
|
Pin No. |
Pin Symbol |
Pin Name |
Connection Description |
|
1 |
VSS |
Ground |
Connected to Ground |
|
2 |
VCC |
Power |
Connected to Power (Typically 5V) |
|
3 |
VEE |
Contrast |
Connected to potentiometer 10k to control contrast |
|
4 |
RS |
Register Select |
Connected to Microcontroller |
|
5 |
R/W |
Read/Write |
Connected to Ground |
|
6 |
E |
Enable |
Connected to Microcontroller |
|
7 |
DB0 |
Data Pin 0 |
Connected to Microcontroller based on 4-bit or 8-bit Working Mode |
|
8 |
DB1 |
Data Pin 1 |
|
|
9 |
DB2 |
Data Pin 2 |
|
|
10 |
DB3 |
Data Pin 3 |
|
|
11 |
DB4 |
Data Pin 4 |
|
|
12 |
DB5 |
Data Pin 5 |
|
|
13 |
DB6 |
Data Pin 6 |
|
|
14 |
DB7 |
Data Pin 7 |
|
|
15 |
LED+ |
LED Positive |
Connected to 5V through 100 ohm Resistor |
|
16 |
LED- |
LED Negative |
Connected to Ground |
The dimensions of 16x2 LCD display is shown below
Further Resources:
Returns Policy
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
1. Damaged During Shipment
If you receive a product damaged during shipment, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.2. Wrong Item Shipped
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.Shipping
We ship to all over India with free shipping on all prepaid orders above 500. For Cash on Delivery orders INR 80 will be charged for orders below INR 599 and INR 30 will be charged for the orders above 599. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.
Please note that the Minimum Order Value is INR 500 for COD orders.
Customer Reviews
16x2 LCD Display (Green Backlight)
Product quality is very good 👍
16x2 LCD Display (Green Backlight)
If you are buying this lcd when make sure you are buying I2C to ease the connection
this component is not working rest all are good
Customer Reviews
16x2 LCD Display (Green Backlight)
Product quality is very good 👍
16x2 LCD Display (Green Backlight)
If you are buying this lcd when make sure you are buying I2C to ease the connection
this component is not working rest all are good