• Beta Touch Screen HMI
  • Beat 432 Front
  • Beta 432H Rear
  • Beta 432H Side

Touch Screen HMI IoT 4.3″ – Beta 432H

Our Beta 432H Touch Screen HMI is the ideal 4.3″ LCD platform for quickly creating your new touch screen based product.

Each Beta Touch Screen HMI consists of a touch screen, LCD, Single Board Computer, mechanicals, injection moulded bezel together with the relevant approvals and rigorous environmental testing. So you just need to add your software to get your new product to market.

The Beta 432H provides USB, LAN, GPIO, LCD, RS232, RS422, RS485, I2C, SPI and Touch. If you need different interfaces (3G, GPS, CAN, Accelerometer, Light Sensor, ADC, DAC, Battery operation, etc) please check the other models in the Beta range.

DatasheetDownloadsRequest a Quote

Product Description

Our Beta Touch Screen HMI range is designed and manufactured in the UK. We pride ourselves on providing the highest level of technical support so that, if necessary, you have access to information when you need it.

As standard our Beta 432H Touch Screen HMI range includes:

  • 1GHz ARM Cortex A9 Processor
  • 4.3″” 480 x 272 Resolution TFT LCD
  • Wide viewing angles
  • Digital input & outputs
  • USB 2.0 Host Port
  • USB 2.0 Device Port
  • SPI & I2C
  • Dual RS232 Ports, Single RS232/422/485 Port
  • Stereo audio inputs and outputs
  • Audio amplifier
  • 10/100 Mbit LAN
  • 5 volt DC power input
  • Low power consumption
  • Stylish injection moulded bezel
  • CE and Thermally tested
  • 5 years+ Manufacturing Life Cycle

The Beta 432H Touch Screen HMI options include:

  • Resistive or Projected Capacitance Touch
  • MicroSD and/or eMMC storage
  • Wifi (2.4 / 5GHz, 802.11 a/b/g/n, Access Point and Station operation) and Bluetooth Classic 4.1, BLE 4.0
  • Standard or extended operating temperatures
  • Picoblade or Screw Terminal connectors
  • Android and Linux Operating Systems

Additional Information

Operating System

Windows, Linux, Android


1GB, 256MB, 512MB


MicroSD 8GB, eMMC 8GB, eMMC 4GB


10/100 Mbit


1.8 Volt


Resistive, Projected Capacitance


USB 2, USB 1.1

Operating Temperature

-20 to 70 Degrees Centigrade, 0 to 50 Degrees Centigrade

Serial Comunications

SPI, RS485, RS422, RS232, I2C


4.3″ Resolution = 480 x 272, Brightness = 380 cd/m2


ARM Cortex A9 – Single Core

Product Status

In Manufacture

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Create your Beta product code

How our Beta product code is made up

We have included some of the popular questions and answers here to help new users:

  • Question: Can we buy the Beta units with a different coloured bezel?
  • Answer: Yes, we can supply Beta units with custom coloured bezels subject to a minimum quantity of 100 pieces


  • Question: Can we design our own PCB with the connectors we require for our product and industry?
  • Answer: Yes of course. One of our main goals when we designed the Beta range was to enable our customers to design their own PCBs and also include their own circuitry if they wished. Have a look at the Hardware manual to start with for the signals provided on the 50 way 2mm connector. Also look at the 3D CAD files for the dimensions.


  • Question: Can you provide a custom design service if we choose not to design in house?
  • Answer: Yes. We can. We can also manufacture and test the complete Beta unit and provide a warranty.


  • Question: What operating systems do you support on the Beta range?
  • Answer: We currently support Android 4.4.3 and Ubuntu Linux 14.04 LTS. More operating systems will be released later in the year.


  • Question: Which operating system do you recommend we use with Beta?
  • Answer: It really depends on your experience and what you are trying to achieve. Android is very good in that it has an established development environment (using Java) and the development cycle can be fast and there are many programmers who are experienced with this platform. We provide our own API to provide access to all the interfaces that Android does not normally support (ever seen an RS232, RS485, I2C or Ethernet port on a mobile phone?) to make as easy possible for you. Linux does not have the constraints of Android in that you incredible freedom to create your unique development environment and tools. If you have the necessary experience then Linux can be a great basis for a new product design and Ubuntu is one of the most popular flavours.


Beta Touch Screen HMI H Series – Hardware User Guide

Beta H Series Linux Guide

Beta H Series Android User Manual

Beta 432H Datasheet

Comparison of 50-Way Connectors on Beta products



Beta Firmware Update Utility (Linux & Android)



Beta H Series Embedded Linux SDK

Beta H Series Embedded Linux SDK MD5

Beta H Series Embedded Linux Virtual Machine – warning large file

Beta H Series Embedded Linux Virtual Machine MD5 – warning large file



Beta H Series Android APIs


CAD Image – includes resistive and capacitive touch screens

Beta 432H STP CAD File


Here is the block diagram for the Beta:

It is obviously at a very high level, so if you need more information please ask.

Remember this is our design and we have all the (electronics, software and mechanical) information to support you.