Introduction

This is a colorful display module designed for the BBC micro:bit, 1.8inch diagonal, 160x128 pixels, capable of displaying 65K colors.

Tired of the 5x5 LED matrix? Time to get a tiny monitor for your micro:bit, this one would be the ideal choice.

Specification

Driver: ST7735S
Resolution: 160x128
Display color: RGB, 65K colors
Operating voltage: 3.3V
Dimension: 61mm x 51.5mm

Pinouts

PIN	micro:bit PIN	Description
Vcc	3V3	Power
GND	GND	Ground
MISO	P14	SPI data master input/slave output
MOSI	P15	SPI data master output/slave input
SCK	P13	SPI clock input
LCD_CS	P16	LCD chip selection
RAM_CS	P2	SRAM chip selection
DC	P12	LCD data/command
RST	P8	LCD reset
BL	P1	LCD backlight

Programming Guide

Micor:bit has variety of programming methods like mbed, micropython, typescript and other programming methods, as well as code online websites which are abundant.

The official recommendation are two programming methods: typescript and micropython. Typescript is the graphical programming language.

Note:For this LCD, we only provide demo code of typescript

Typescript

Typescript is a kind of graphical programming, its website is that: https://makecode.microbit.org/#

Open a browser and input the next URL

Create a new empty project

Click Project->New Project to create an empty project. Rename the project as LCD or any one you like to.

Add Packeage

You can get the package of 1.8inch LCD for micro;bit from github. Click More..->Add Package, then copy the URL to the Edittext. https://github.com/waveshare/WSLCD1in8

Note: add a space follow the address

The Blocks

Initiation

You need to initial LCD module first.

Clear the screen

Clear the screen to white. Create an buffer on RAM with the resolution size 160*128 and initial it to white.

Set the backlight

Send display data

With this block, it will send one frame of buffer to the LCD and display. Note: it is always following drawing operation

Draw point

Place the block before send display data. You can choose the position, color and size. For the screen, (1,1) is on top-left, and (160,128) is on bottom-right

There are tow way to set the color, the one is use the color block as above, another is to set the value (RGB565) by drag the slider.