HiLetgo 2pcs DC3.3V HD44780 1602 16x2 Character LCD Display Adapter Module Blue Backlight for Arduino UNO R3 MEGA2560 Nano Due Raspberry Pi
Brand new and high quality, Great for electronic experiments and projects LCD display module with blue blacklight, Wide viewing angle and high contrast Built-in industry standard HD44780 equivalent LCD controller, Display 2 lines of 16 characters including letter, number, and symbol Works with Arduino UNO R3 MEGA2560 Nano Due, Raspberry Pi, Low cost and easy to use, perfect for beginners Commonly used in: copiers, fax machines, laser printers, industrial test equipment, networking equipment such as routers and storage devices
Introduction: LCD1602 is an industrial character type LCD that can show 16*2, i.e. 32 characters. The character generator ROM in the LCD module has already stored 160 different characters in dot matrix, including Arabic numbers, letters in low and upper case, and common symbols.  In Arduino IDE, a built-in library LiquidCrystal can be called directly, and you don't need to write it, which is pretty convenient for beginners.  Its working voltage is 5V, and you can adjust the contrast via the 50K potentiometer. For the backlight, just connect pin A to 3.3V and K to GND, and then it will light up. Features: LCD display module with blue backlight  Wide viewing angle and high contrast  Built-in industry standard HD44780 equivalent LCD controller  LCM type: Characters  Can display 2-lines x 16-characters  Operate with 5V DC Material: FR4 + LCD Commonly used in: copiers, fax machines, laser printers, industrial test equipment, networking equipment such as routers and storage devices Pins of LCD1602 and their functions: VSS: connected to ground VDD: connected to a +5V power supply VO: to adjust the contrast RS: A register select pin that controls where in the LCD’s memory you are writing data to. You can select either the data register, which holds what goes on the screen, or an instruction register, which is where the LCD’s controller looks for instructions on what to do next. R/W: A Read/Write pin to select between reading and writing mode E: An enabling pin that, when low-level energy is supplied, causes the LDC module to execute relevant instructions. D0-D7: to read and write data A and K: Pins that control the LCD backlight Note: You need to solder the Pin Headers before application. Package included: 2*HD44780 1602 16x2 Character LCD Display Adapter Module Blue Backlight
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KEYESTUDIO 1602 LCD I2C Screen Module for Arduino RaspPi  0.96 oled module(yellow and blue)
https://www.amazon.com/vdp/060be49af1744c05a5f4b0d9cdac68e7?ref=dp_vse_rvc_0 https://www.amazon.com/vdp/0c5c5947407c4e078b65d866f7db7f8e?ref=dp_vse_rvc_1
HiLetgo
{"Brand": "HiLetgo", "Item model number": "3-01-0710-2pcs", "Hardware Platform": "Arduino", "Item Weight": "2.39 ounces", "Package Dimensions": "3.74 x 2.28 x 1.26 inches", "Color": "Blue", "Manufacturer": "HiLetgo", "Is Discontinued By Manufacturer": "No", "Date First Available": "February 5, 2018"}