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.



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


  • 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:

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.


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

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

Copyright (c) 2008-2016 Seeed Development Limited (www.seeedstudio.com / www.seeed.cc)
This static html page was created from http://www.seeedstudio.com/wiki