Xadow 1.54'' Touchscreen

This TFT Display contains 240 x 240 pixels that can be controlled individually to display up to 262K colors. Above the display is a layer of a capacitive touchscreen, offering 29.4mm x 29.4mm active area at the center of the display. As a single touch screen, it can detect finger presses anywhere within the active area during normal operations. The TFT driver gets the ST7789S IC Driver inside with 2-bit data and 4-bit control serial interface while the capacitive touchscreen controller uses I2C.

Version Tracker

Product version	Release date	Support status	Notes
Xadow 1.54" Touchscreen(v1.0, older version)	Oct 2015	Supported	None
Xadow 1.54" Touchscreen(v1.1, latest version)	June 2016	Supported	None

Note we have few modifications to library of Xadow 1.54" Touchscreen. And we will cover it later in section Notice of this page.

Features

240 x 240 resolution
Display up to 262K colors
4x 2mm/0.9” mounting holds
Built-in Xadow Connectors for easy pluggable FPC cables
Perfect choice for your DIY phone project

Specification

TFT Driver	ST7789S
Touchscreen Type	Capacitive
Backlight	3 adjustable while LEDs
Current draw	~ 100mA at full backlight
Resolution	240 × 240 pixels
Connector	2 × 35 PIN Xadow Connectors for Xadow GSM+BLE & Xadow Audio
Interfaces	Four-wire serial interface for TFT display I2C for touchscreen
Dimensions	Board – 50.22mm × 47.21mm / 1.98” × 1.86” Touchscreen – 38.1mm × 37.8mm / 1.51”× 1.51” Active Area – 27.72mm × 27.72mm / 1.09” × 1.09” 4 × 2mm/0.9” mounting holds

Hardware Overview

Notice

Try to use it in a stable environment as an abrupt variation of temperature and humidity may cause malfunction of the panel.
Try to keep the panel surface clean and avoid any adhesive applied on the surface, you may use neutral detergent or isopropyl alcohol on a clean, soft cloth to clean the panel surface.

Note we have few modifications to library of Xadow 1.54" Touchscreen for newer version. If you use Xadow 1.54" Touchscreen v1.1:

For development environment of JavaScript, Lua, and Arduino or using RePhone Create Kit source code, you need to comment the corresponding line #define _TOUCH_SCREEN_V1_0_ and un-comment(enable) the line //#define _TOUCH_SCREEN_V1_1_. You can find those corresponding lines at:

For .VXP file of RePhone Create Kit, please change the line App=C:\MRE\RePhone_Create_Kit_v6_4_TP_v1_x.vxp to App=C:\MRE\RePhone_Create_Kit_v6_4_TP_v1_1.vxp at https://github.com/WayenWeng/RePhone_Create_Kit_VXP/blob/master/RePhone%20Create%20Kit%20VXP/autostart.txt
For development environment of Eclipse, you don't have to change anything.

RePhone Community

We’ve been looking for a better place where our backers (RePhone Users) can sit together, warmly and comfortably, have conversations about RePhone, discuss technical problems, share ideas/projects, and give feedback on the modules’ development in the future. And then here we go, the RePhone Community.

Now join us in the RePhone Community! Together we seek answers, make interesting stuff, care about each other, and share our experiences.

Frequently Asked Questions

Some frequently asked questions in RePhone Community are collected and answered to the topic "Frequently Asked Questions of RePhone (FAQ)" , the topic will be kept updating whenever a new FAQ comes out.

Resources

The schematic diagram of Xadow 1.54” Touchscreen is provided in the following link:

Xadow 1.54”Touchscreen schematic files

Check more info about the TFT Display and the Capacitive Touchscreen:

Datasheet of the TFT display

Datasheet of the capacitive touchscreen