Standard LCD 20x4 + extras [white on blue] : ID 198 : $17.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: GeeekPi 2-Pack I2C 1602 LCD Display Module 16X2 Character Serial Blue Backlight LCD Module for Raspberry Pi Arduino STM32 DIY Maker Project Nanopi BPI Tinker Board Electrical IoT Internet of Things
Overview | Arduino Lesson 11. LCD Displays - Part 1 | Adafruit Learning System
Amazon.com: HiLetgo 2004 20X4 LCD Display LCD Screen Serial with IIC I2C Adapter Yellow Green Color LCD for Arduino Raspberry Pi : Electronics
16x2 I2C LCD Display Module With Blue Backlight - Parallax