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Product Details

Part no.	4inch RPi LCD (A)
Packge/Case	320×480
Manutacturer	Waveshare
Date Code	09+
Description	, 320×480, IPS SKU: 4inch RPi LCD (A)
Datasheet	Check Datasheet

DESCRIPTION

4 inch Touch Screen TFT LCD Designed for Raspberry Pi

Features

Designed for Raspberry Pi, an ideal alternative solution for HDMI monitor
Supports any revision of Raspberry Pi (directly-pluggable)
Drivers provided (works with your own Raspbian/Ubuntu directly)
IPS technology, high quality and perfect displaying from very wide viewing angle
320×480 resolution
Convenient Men-Machine interface for Raspberry Pi, combined with the portable power, DIY anywhere anytime
Supports Raspbian system, enables your system to:
- Take photos by touching (up to 17 camera modes)
- Support software keyboard (system interaction without keyboard/mouse)

Key Parameters

LCD Type	TFT
LCD Interface	SPI
Touch Screen Type	Resistive
Touch Screen Controller	XPT2046
Colors	65536
Backlight	LED
Resolution	320*480 (Pixel)
Aspect Ratio	8:5
Power Consumption	TBD
Backlight Current	TBD
Operating Temp. (℃)	TBD

Photos

Interface

PIN NO.	SYMBOL	DESCRIPTION
1, 17	3.3V	Power positive (3.3V power input)
2, 4	5V	Power positive (5V power input)
3, 5, 7, 8, 10, 12, 13, 15, 16	NC	NC
6, 9, 14, 20, 25	GND	Ground
11	TP_IRQ	Touch Panel interrupt, low level while the Touch Panel detects touching
18	LCD_RS	Instruction/Data Register selection
19	LCD_SI / TP_SI	SPI data input of LCD/Touch Panel
21	TP_SO	SPI data output of Touch Panel
22	RST	Reset
23	LCD_SCK / TP_SCK	SPI clock of LCD/Touch Panel
24	LCD_CS	LCD chip selection, low active
26	TP_CS	Touch Panel chip selection, low active

External Dimension

Downloads

Development resources:Image, schematic, dimension, software, etc.
Download: www.waveshare.com/wiki/4inch_RPi_LCD_(A)

FAQ

Why the LCD doesn't work with my Raspbian?: To use the LCD with the Raspberry Pi official image, driver should be installed first. Please refer to the user manual.
However, for the first testing, you may want to use our provided image directly.
Why the LCD still doesn't work with the Waveshare provided image?: Make sure the hardware connection is correct and connects fine.
Make sure the image in TF card is burnt correctly.
The PWR will keep on and the ACT will keep blinking when the Raspberry Pi starts up successfully, in case both of the two LEDs keep on, it is possible that the image was burnt incorrectly OR the TF card was in bad contact.
Which power supply should I use?: It is strongly recommended to use a stand-alone 5V/2A power adapter, because the PC's USB port might have not enough power to support the Pi and LCD.

For more info, please check the wiki page.

Selection Guide

Part Number	Resolution	LCD Interface	Touch Panel Interface	For use with	Dimension (mm)	Touch Panel Type	How you feel	Feature
3.2inch RPi LCD (B)	320x240	I/O	I/O	Pi	As the Pi 3B	Resistive	★★	Low cost
3.5inch RPi LCD (A)	320x480	I/O	I/O	Pi	As the Pi 3B	Resistive	★★★	Cost effective
4inch RPi LCD (A)	320x480	I/O	I/O	Pi	94 × 61	Resistive	★★★☆	IPS screen
4inch HDMI LCD	800×480	HDMI	I/O	Pi	99 × 58	Resistive	★★★★☆	IPS screen
4.3inch HDMI LCD	480×272	HDMI	I/O	Pi	106 × 68	Resistive	★★★★	Cost effective
5inch HDMI LCD	800x480	HDMI	I/O	Pi	121 x 78	Resistive	★★★★	Low cost
5inch HDMI LCD (B)	800x480	HDMI	USB	Not only Pi	121 x 76	Resistive	★★★★	Supports various systems
7inch HDMI LCD	1024×600	HDMI	I/O	Pi	165 × 107	Resistive	★★★★☆	IPS screen
7inch HDMI LCD (B)	800x480	HDMI	USB	Not only Pi	165 x 107	Capacitive	★★★★☆	Supports various systems
7inch HDMI LCD (C)	1024x600	HDMI	USB	Not only Pi	165 x 107	Capacitive	★★★★★	IPS screen, Supports various systems
10.1inch HDMI LCD	1024×600	HDMI	I/O	Pi	235 × 144	Resistive	★★★★☆	Cost effective
10.1inch HDMI LCD (H)	1024x600	HDMI	USB	Not only Pi	257 x 162	Capacitive	★★★★☆	Supports various systems
10.1inch HDMI LCD (B)	1280x800	HDMI	USB	Not only Pi	274 × 187	Capacitive	★★★★★	IPS screen, Supports various systems

Note :
Pi 3B = Raspberry Pi 3 Model B
If the LCD is intended to play videos, please choose the one with HDMI display interface for better experience.

Have a look :
RPi LCD Comparing

Anti-Piracy

Since the first-generation Raspberry Pi released, Waveshare has been working on designing, developing, and producing various fantastic touch LCDs for the Pi. Unfortunately, there are quite a few pirated/knock-off products in the market. They're usually some poor copies of our early hardware revisions, and comes with none support service.

To avoid becoming a victim of pirated products, please pay attention to the following features when purchasing:

4inch RPi LCD (A)

$ 31.90 (USD)/PCS