3.5″ Resistive Touch Screen LCD GUI (Dev Kit) – UEZGUI-35CR-DK

3.5" Resistive Touch Screen LCD GUI (Dev Kit) – uEZGUI-35CR-DK. The microcontroller for this system is an NXP LPC54608 features Aruba Software.

Part #: UEZGUI-35CR-DK (Dev Kit)
MSRP (Qty 1): $199.00

Part #: UEZGUI-35CR-BA (Production Module)
MSRP (Qty Volume):

Status: Prototypes Available
Production guaranteed: Until 2030
Warranty: 1 Year (Extended available)

  • Microcontroller-based intelligent HMI GUI
  • 3.5" QVGA Resistive Touch Screen LCD
  • µEZ® / FreeRTOS Rapid Software Development Platform
  • NXP LPC54608 180MHz CPU with 1MB internal Flash
  • Expansion: UART, I²C, SPI, ADC, GPIO, USB Host/Device, RMII



The 3.5” Resistive Touch Screen LCD GUI (Dev Kit) – UEZGUI-35CR-DK, adds new software options to FDI’s standalone microcontroller-based µEZ®GUI product family. Featuring the high performance NXP LPC54608 Cortex-M4 microcontroller with Aruba software, the UEZGUI-35CR-DK includes a Cortex-M0 co-processor, Floating Point Unit and high speed QSPI Flash. Providing a WVGA resolution, the brilliant 350 nit display also features IPS-like viewing angles. This product is ideal for customers who need a smaller footprint for their embedded design but also require a higher resolution.

FDI also offers low cost customization services for customer specific hardware, software or packaging applications at volumes of 500 units or more

Quick Start Documentation
Quick Start Guide
UEZGUI-35CR-DK Kit Contents
  • UEZGUI-35CR-DK-BA Production Module
  • USB Device cable for Power
  • Mini JTAG Debugger with cables
  • microSD card

μEZGUI Software
  • μEZ® / FreeRTOS Rapid Development Platform
  • MicroSD card appears as a USB Flash Drive to the PC
  • Rowley CrossWorks Compiler and Tool Suite
  • Segger J-Link Lite JTAG for programming and debug

• Speed180MHz
• Internal SRAM200KB
• Internal Flash512KB
External Flash128MB
External Flash TypeQSPI
External Flash Optional128MB
SDRAM Standard8MB
SDRAM Optional16MB
128Mbit Serial PCM Memory, optionNot available
Non-volatile data storage standardInternal 16K EEPROM
Non-volatile data storage optionalNone
SD Card Bus interfaceHigh Speed SD
USBUSB Device Mini-B for Device Operation
Expansion - primary50 Fine Pitch I/O Connectors for External Expansion:Serial Ports, UART, I²C, SPI, USB Host/DeviceRMII interface for Ethernet 10/100
Expansion - additionalUART, SPI, I2C, RTC Ext Batt
Accelerometer3 Axis
Temperature SensorYes
JTAGCortex-M 9-pin JTAG Debug Connector
AudioOn-board Speaker
Operating Temperature:-20° to 70° C
Storage Temperature:-30° to 80° C
Power InputUSB Device Mini-B for power
Input Voltage:+5 Volt DC
Power Consumption:225 mA typ / 430 mA max
Overall Size91.44 (W) x 78.74 (H) x 13.13 (D) mm
Mounting:#6 screws in 4 corners
RoHS Compliant:Yes
Screen Size (diagonal)3.5 inches
Display TechnologyTFT
Resolution320 x 240 (QVGA)
Brightness350 nits (typ)
Contrast Ratio500 : 1 (typ)
Aspect Ratio4:3
Colors:262K (18 bit)
Pixel Pitch0.219 (W) x 0.219 (H)
Vertical Viewing Angle:60/70° U/D
Horizontal Viewing Angle:70/70° L/R
Surface Finish:Anti-glare
Touch Screen type4-Wire Resistive
Active Area:70.08(W) x 52.56(H)
Response Time:25ms Tr/Tf (typ)
Backlight:6 LEDs (6S x 1YP)
Backlight Life:20K hours (typ)
Backlight Power Consumption:384 mW (typ)
Reverse Scan:None
Kit Available?Yes
Current Documentation – Rev 1.0

Interactive Online uEZ GUI API Library (By Doxygen)Interactive Online uEZ GUI API Library (By Doxygen)Online03/29/2016
Converting Images from 24-bit to 16-bit for uEZ GUI
Software QuickStart GuideQuick Start Guidepdf09/15/2014
Software User's GuideUser's Guidepdf09/15/2014
JTAG Programming uEZ GUIsEngineering Guidepdf08/13/2015
Converting a PowerPoint Slideshow for use on uEZ GUI ProductsApplication Notezip10/19/2016
Expansion Board Design GuideApplication Notepdf11/03/2016
How to Create Videos for uEZ GUI
Engineering Guidezip02/22/2016

FDI Software

μEZ® Source Files
µEZ® is an open source, embedded middleware platform providing underlying RTOS and processor abstraction features enhancing portability of application code to multiple ARM and Renesas platforms with high reusability.

FDI Bootloader
The µEZ+ Bootloader is perfect for upgrading your firmware in the field through mediums such as an SD card,USB flash drive, or even over a serial interface such as Ethernet or USB.

Recommended 3rd Party Software

Rowley CrossWorks Compiler and Tool Suite
Crossworks compiler for ARM.

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SAFERTOS is a safety certified Real Time Operating System (RTOS) for embedded processors. It delivers superior performance and pre-certified dependability, whilst utilizing minimal resources.

TouchGFX is a unique software framework that unlocks the graphical user interface (GUI) performance of your low-resource hardware. The revolutionizing technology breaks existing restraints, as it lets you create sophisticated GUIs that fully live up to today’s smartphone standards at a fraction of the cost.

emWin is designed to provide an efficient, processor- and LCD controller-independent graphical user interface (GUI) for any application that operates with a graphical LCD. It is compatible with single-task and multitask environments, with a proprietary operating system or with any commercial RTOS. emWin is shipped as “C” source code. It may be adapted to any size physical and virtual display with any LCD controller and CPU.

Micrium is a global RTOS leader and a top choice of embedded engineers building microprocessor, microcontroller, and DSP-based devices. Micrium’s commercial RTOS components such as the μC/OS product family are the preferred solution at thousands of companies around the globe. Offering unprecedented ease-of-use, μC/OS-III is delivered with complete 100% ANSI C source code and in-depth documentation. μC/OS-III runs on the largest number of processor architectures, with ports available for download from the Micrium Web site. µC/OS-III allows for unlimited tasks, semaphores, mutexes, event flags, message queues, timers and memory partitions. µC/OS-III provides features to allow stack growth of tasks to be monitored. µC/OS-III also supports an unlimited number of priority levels. µC/OS-III’s footprint can also be scaled to contain only the features required for a specific application.

Crank Software
Crank™ Software Inc. is an innovator in embedded user interface (UI) solutions. Compared to traditional electronic design automation tools, Crank’s products and services enable R&D teams to more quickly develop rich graphical displays—also called UIs or HMIs—for resource-constrained embedded devices. Applications include in-car graphical displays, animated GPS systems, and rich user interfaces on factory floors. Crank Software bridges the gap between UI design and embedded systems to deliver competitive advantage because streamlining the development lifecycle enables their customers to get products to market faster, with higher ROI and lower TCO, while delivering a superior customer experience. Crank Storyboard™ Designer enables user interface (UI) designers to easily prototype the look and feel of a product, and then deploy a production-ready interface directly to the embedded target. Designers maintain full control over the UI and user experience (UX) without having to perform a hand off to an embedded systems engineer for implementation.

J-Link Software Downloads
Various Various Download latest software and drivers from the Segger website.


J-Link Product Page
SEGGER J-Links are the most widely used line of debug probes available today. They’ve been proven for more than 10 years with over 250,000 units sold, including OEM versions and on-board solutions. This popularity stems from the unparalleled performance, extensive feature set, large number of supported CPUs, and compatibility with all popular development environments.

15FPS Video Demo
Demonstration of how uEZ GUI is able to provide fifteen frame per second video samples right on the device.

Gainspan WiFi PMOD demo
Demonstration of the additional WiFi capabilities of the μEZ GUI, shown by FDI Director Kent Lowman from the show floor of EE Live in San Jose, California.

FreeRTOS Slides
FreeRTOS Presentation formatted for this μEZGUI (zip)

SAFERTOS Presentation formatted for this μEZGUI (zip)


Once you’ve picked up your µEZ GUI, FDI is with you every step of the way. We offer support and documentation on our forums.

µEZ Software

Quick Start GUI Program
  • Customer Provides Menu Inputs
  • Photoshop, PowerPoint or even napkin drawings
  • Simple Menus and Functions usually less than 8 screens
  • 1-2 week turnaround for $5,000 or less
  • Customer starts API level application development immediately

Expansion Boards

Do not forget to look at our expansion boards
Adds: Ethernet, USB Host, RS232/RS485, AC Power