small but even more powerful

Biemme italia present a panel HMI 4.3 rooted, android 5.1 technologies with outputs on board.
His name is Ltouch43.


Stainless steel frontal frame and stainless steel rear cover !

Thanks to the free development Android Studio you can create your own personalized app

Graphics and Logics all in the same IDE

Android 5.1 and its many functions allow you to connect with the worlds. In order to leverage the flexibility of the Android OS, the board has a native modus RTU library for Android that is able to communicate with every device through RS485.

Android 5.1 rooted

Cortex-A53 processor

+ 1 %
Performance Uplift

much faster in thread management

+ 1 %
Speed multimedia

use it for IOT projects

- 1 %
Consume lower power

lower absorption current



64 bit


2 GB

32bit DDR3

16 GB


24 Vdc








Display 4,3 inch capacitive touch screen

Risolution 400x800

The product will comes with a free Android modbus library that can be used to communicate with any commercial products such as PLC, I/O modules, temperature controllers and in general with any device that support the modbus protocol through rs485.

RS485 full isolated

We developed our own library to support hardware I/O in all Android projects; it is reliable, fast in terms of execution time and open source . It is simple to import our library in eclipse projects and write your (java) project to handle I/O

RS485 it is polarized, so as to allow communication over long distances,
all RELAY outputs are protected by varistors, high quality relay, output: 24VDC max 5A, 250V max 5A
all connectors are removable
RED signaling LED for power supply anomaly
GREEN signaling LED for voltage presence



If a board is connected to a network via Ethernet before it is powered on it will automatically obtain an IP with DHCP activated after it is powered up. If you want to set up a static IP you can use the user interface or modify the kernel

Stay connected from anywhere

WiFi: 802.11b/g/n

On board there is a module low-power consumption module which has all of the WiFi, Bluetooth.  With seamless roaming capabilities and advanced
security, also could interact with different vendors’ 802.11b/g/n Access Points in the wireless LAN.

The wireless module complies with IEEE 802.11 b/g/n standard and it can achieve up to a speed of 72.2Mbps with single stream in 802.11n draft, 54Mbps as specified in IEEE 802.11g, or 11Mbps for IEEE 802.11b to connect to the wireless LAN. 

Electrical noises. The most important rules

Maximization of PCB Ground area
Functional grouping of components for EMI control
Optoisolated RS485 Line
Short tracks for limiting radiation and crosstalk issues
Analog inputs far from noise sources
Capacitors split for removing any high frequency noises

Information exchange

There are no limits for Ltouch43

Possibility to implement a server inside the Ltouch43 with which any wifi device can exchange information.
Is simple.
Just connect to the Ltouch43 network generated with hotspots.
You receive.
It commands.

Ltouch43 is rooted

This application starts automatically when the device starts.
We have created a series of settings to adapt it to all situations. Some of the settings 

-p Password to access server

-e Path to encrypted password file to access server

-r Screen rotation (degrees) (0,90,180,270)

-s Scale percentage (20,30,50,100,150)

-z Rotate display 180 (for zte compatibility)

Upload all the projects you want, just use what you need

You can have all your projects contained within Ltouch43, only when you need and without any external device you can choose the app that is right for you.

let the operator choose

install your app in your smartphone and show your work to the customer.


YES , we created it for Android

You can securely connect to a remote computer or server using a text-based interface.
When a secure SSH connection is established, a shell session will be started and it will be possible to manipulate the server by typing commands within the client on the local computer.

we can install the SSH server inside the touch

Modbus TCP

Using the modbus tcp is simple and fast

import the library

Power Supply Voltage Recognition

The hardware architecture recognizes the supply voltage when there is a difference of 20% Ltouch43 and turns off.

Outputs relay

4 power relays installed directly in the Ltouch43. Thanks to the library you can easily use the outputs on board


all in stainless steel, designed to last over time


directly from us, without intermediaries, visit our store

Ltouch 43

Dev System

Android 5.1 rooted, we can make your product with your logo and your customizations


product traceability and support via e-mail to create your projects, with wiki canal