Will a first generation Raspberry Pi, Model B be able to handle everything without beeing exhausted?

The AVR-based Qwiic Serial Enabled LCDs are a simple and cost effective solution to include in your project. The OLED display feature are brighter display, much higher contrast display, wider viewing angles, that have faster response times, self-illuminating and lower current consumption.This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong. The SparkFun SerLCD is an AVR-based, serial enabled LCD that provides a simple and cost effective solution for adding a 20x4 Black on RGB Liquid Crystal Display into your project.

Intelligent 20x4 Serial Charcter LCD display engineered to quickly and easily add a powerful HMI to any application.This is a fancy upgrade to standard 20x4 LCDs, instead of just having blue and white, or red and black, this LCD has full color RGB characters on a dark/black background!