If you need second (or third) Fast Gigabit Ethernet interface on your embedded Linux computer or desktop our Open Source Hardware OSHW USB-Gigabit adapter is what you need!


Many of our customers ask if we can design board with two or three Gigabit Ethernet interfaces. The Allwinner chips we use for OLinuXino are general purpose not communication chips so they usually have single Ethernet. The Sitara SOC we use AM335X advertise to have more than one Ethernet interface but it’s marketing as these are virtual interface i.e. share transfer speed.

USB-Gigabit allow you to add 10/100/1000Mbit interface to any of your computers which has USB host. It supports USB 1.1, USB 2.0 and USB 3.0 interfaces and speed depend on your USB port speed.

Our tests with A20 OLinuXino boards with USB 2.0 host interface show 319Mbit of Upload and 295Mbit of Download speed i.e. x3 times more than our other USB-Ethernet-AX88772B interface.

New product in stock: Micro-USB-OTG-Adapter allow to connect USB devices to your phone and tablet


MICRO-USB-OTG-ADAPTER allow you to connect easily USB Flash drives, Keyboards, Mouse, camera, etc USB devices to your phone and tablet.

Small and compact size it slides inside USB-A connector and make it MICRO-USB:


then you can easily attach to your phone:


and to transfer Music, Movies, Documents etc.


New Product in stock: A10-OLinuXino-LIME-UEXT adapter


A10-OLinuXino-LIME-UEXT is adapter board with Male connector on 0.05″ which can connect to A10-OLinuXino-LIME GPIOs with  0.05″ step ribbon CABLE-40-40-10CM and allow LIME GPIOs to be used with BREADBOARD-1, or with A13-LCD43TS, A13-LCD7TS or A13-LCD10TS.

For the moment A20-LCD15.6 is not supported as LVDS signals got noisy when pass through A10-OLinuXino-LIME-UEXT but we are looking for solution.

UEXT signals can be used only when connected to GPIO1. On the other connectors UEXT signals will be not present.

New Product in stock: MOD-WIFI-R5370-ANT 802.11b/g/n 150Mb adapter for OLinuXino with external antenna


MOD-WIFI-R5370-ANT is based on Ralink 5370 chipset and works with PSP, Linux, Windows, MACOS etc.

The advantage vs MOD-WIFI-R5370 is that it have bigger range due to the external antenna. The disadvantage is that it is bigger and takes more space.

MOD-WIFI-R5370-ANT is supported in the Debian images we distribute for OLinuXino

New Product in stock: MOD-WIFI-R5370 802.11b/g/n 150Mb adapter for OLinuXino


MOD-WIFI-R5370 is based on Ralink 5370 chipset and works with PSP, Linux, Windows, MACOS etc.

The advantage vs MOD-WIFI-RTL8188CU is that it have smaller dimensions and it’s more compact when plug to OLinuXino.

As disadvantage we found it to have less wireless range than MOD-WIFI-RTL8188CU

MOD-WIFI-R5370 is supported in the Debian images we distribute for OLinuXino

Friday Free Board Quiz Issue #48 prize is USB-Ethernet adapter


USB-ETHERNET adapter allow you to connect your computer to Ethernet via USB port. It works with OLinuXino and should work with most PC computers too.

You have chance to win this board!

Today at 17.00 o’clock our local Bulgarian time (GMT+3) we will post on Twitter our questions.

You have one hour to reply to our tweet with the correct answer.

At 18.00 o’clock we will count the correct answers and ask random.org to generate random number in range then announce the winner and ship the board by airmail in Monday.

And there is more…

as there are many people in different time zones which could not participate in Friday quiz at 17.00 o’clock, today we will give away one more USB-Ethernet board without Quiz to random person who used the buttons below to re-tweet, share on Facebook or in G+ during the weekend, the winner will be pickup next Monday.

New Cheaper Power supply adapters 5V and 12V in stock


We offer two power supply adapters for OLinuXino: SY0612E 12V 0.5A and SY0605E 5V 1A both are produced in Romania by Sunny Computer Technology Europe SRO, which is factory established by Sunny Computer Technology China.

These adapter are with good quality, come with all certificates and meet all safety standards, but they are bit expensive.

We found cheaper adapters manufactured in China which are at half price than these manufactured in EU.

Here we disassembly both to see the difference:

1. PCBs on both adapters are made by cheap FR2 material;


2. Electronic components, capacitors, transformers, semiconductors in both adapters are with good quality; We have been diassembling ultra cheap adapters which sells for $1 with free shipping on ebay and they are really bad quality and will break after few plugs on the mains, there are no distance inside between high/low voltage parts and it’s quite dangerous to use such adapters at all, but this one is not such case. The Chinese adapter have even bigger air distance between the high and low voltage part than the EU made, but I think this comes from the fact that EU adapter have protective coating and is allowed to have narrow distance.

3. EU adapter uses wires with bigger diameter, Chinese is made with thinner cables which for sure will withstand the small currents which are used, but will fail sooner if somebody pull or twist the cable.


4. EU adapter PCB is with protective coating on the solder side (which make surface glossy) and which will protect the PCB when working in humidy enviroment, the Chinese adapter have no protective coating.


5. EU adapter the power connector is with springs inside which always guarantee good contact with the power jack on the board, Chinese connector is simple with no springs inside.


6. EU adapter have all certificates and safety standards tests, Chinese adapter may pass these, but they didn’t bother to spend money on certification and didn’t mark the adapters (actually they would mark them if we asked 🙂 but this is not the point, you can’t be sure if there is certification on goods you buy from China as they will mark it with anything you want.

Generally in our opinion both adapters will work well, the EU adapter of course is with better quality but at double price. If you want to use the adapter just in your lab or at home and you are at low budged the Chinese adapter will do the same job for you.

If you want use the adapter in project where you want more reliability or the device will be subject to high/low temperatures and humidity you should choose the EU adapter.

New Product: USB-MINI-2-USB-HOST adapter


A13 processor have two USBs, one is HIGH SPEED USB host, the other is USB-OTG.

A13-OLinuXino and A13-OLinuXino-WIFI have build in USB hub, so the USB hosts support keyboards, mouses etc HID devices.

A13-OLinuXino-MICRO have no hub, so on the USB host you can’t attach directly HID devices, only through hub.  Interesting feature is that USB-OTG supports HID devices, but to connect USB keyboard or mouse is difficult to USB mini connector, this is where USB-MINI-2-USB-HOST is used.

If you want to connect to A13-OLinuXino-MICRO keyboard you can do it with this adapter connected to the mini USB-OTG connector.

STELLARIS-UEXT adapter for Stellaris launch pad in stock


STELLARIS-UEXT is Texas Instruments Stellaris Launchpad to UEXT adapter.

We have prepared demo code for MOD-GSM, MOD-MP3, MOD-GPS, MOD-TC, MOD-SMB380, MOD-IRDA, MOD-LCD3310 so you can interface these modules from your Stellaris Launchpad.

As Stellaris MCU have two SPI, I2C and UARTs we made the adapter with two separate UEXT connectors so you can connect two independant UEXT modules to it. Each UEXT have power up/down control with MOSFET so you can power up and down UEXT modules connected.

Raspberry Pi GPIO to Breadboard and UEXT adapter


Raspberry Pi is the most successful embedded Linux board for all times, according to their blog they have sold over 500 000 pcs, although when they post something on their blog you never know it’s true or not from our own source we know Farnell and RS Components have sold at least 100 000 each by August this year, so the number may be not exactly 500 000 but still in 6-digit range.

I will admit that our OLinuXino Linux boards were inspired and designed due to the lot of e-mails and requests from customers of ours at the beginning on 2012 when Raspberry Pi had problems to arrange their production. We were asked again and again please do small low cost Linux computer, although at that moment we were just Linux users but never dealt with Kernel compilations, Device drivers build etc. this is what triggered us to go in this direction.

So if there was no Raspberry Pi there would not be OLinuXino as well, I admit it 🙂

Despite all problems Raspberry Pi had with the manufacturing start-up they now have sorted out their production problems and schematic mistakes, so the latest model-B works fine according to what we hear. I asked today friend of mine to borrow me one Pi to experiment with and this on the picture above is what we made.

We all know that Raspberry Pi $35 price is hard to beat, but looking at the additional accesoaries and boards which are sold for Raspberry Pi I can’t say the same for them.

To use Raspberry Pi to interface real world you need additional hardware and the prices of this after sale accessories are quite high, probably to adjust the not-so profitable Raspberry Pi sale price?

For instance the Gertboard which contain few ICs and components + blank board which harly cost more than $10 for the Raspberry Pi volumes is offered for $46!

The new PiFace board with two relays and 4 buttons announced price is $36.

What we did today is small Raspberry Pi GPIO to Breadboard adapter with UEXT on it.

We called it RPI-UEXT and will have these in stock in 2 weeks, what you can do with this breadboard adapter? Well this is basically same T-shape board as our AVR-T32U4 Arduino like breadboard board: https://www.olimex.com/Products/Duino/AVR/AVR-T32U4/

You can see it how it plugs to normal Breadboard here:


The T-shapped boards was first invented by Ken Segler and we used for DuinoMite-TBA.

Every breadboard have two power supply busses on the top and bottom and there we run +5V/GND on top and +3.3V/GND on bottom. With the T-shapped board you make power supply available for breadboarding not only the GPIOs.

On top of the easy for breadboarding adapter we also have UEXT connector, what you can connect to Raspberry Pi with UEXT?

1. MOD-IO2 board https://www.olimex.com/Products/Modules/IO/MOD-IO2/ which cost EURO 12.95 and adds 2 relays + 7 GPIOs, you can plug together as many MOD-IO2 as you wish as they are addressable so you can have as many relay outputs driven by Raspberry Pi as you want.

The project for MOD-IO2 interfacing with iMX233-OLinuXino is on GitHub and we will release Raspberry Pi pack which will have MOD-IO2 control with Raspberry Pi

2. MOD-IO board https://www.olimex.com/Products/Modules/IO/MOD-IO/ which cost EURO 25.95 and have 4 relays + 4 opto isolated inputs + 4 Analog inputs, you can plug together as many MOD-IO as you wish as they are addressable so you can have as many relay outputs and analog inputs + optoisolated digital inputs driven by Raspberry Pi as you want.
The project for MOD-IO interfacing with iMX233-OLinuXino is on GitHub and we will release Raspberry Pi pack which will have MOD-IO control with Raspberry Pi

3. MOD-RTC https://www.olimex.com/Products/Modules/Time/MOD-RTC/ cost EURO 4.95 is real time clock with battery backup which you can connect to Raspberry Pi with the UEXT adapter

4. Four different LCD modules are available from 1 row 9 characters segment LCD https://www.olimex.com/Products/Modules/LCD/MOD-LCD-1×9/ for EUR 6.95, NOKIA 3310 module 84×48 pixel LCD https://www.olimex.com/Products/Modules/LCD/MOD-LCD3310/  for EUR 6.95, color Nokia 6610 LCD https://www.olimex.com/Products/Modules/LCD/MOD-LCD6610/ 128×128 pixels with backlight and LCD 4.3″LCD module https://www.olimex.com/Products/Modules/LCD/MOD-LCD4.3”/ for EUR 79.95. All these modules have GitHub projects for iMX233-OLinuXino which will work on Raspberry Pi also.

5. RFID readers for 125 Khz https://www.olimex.com/Products/Modules/RFID/MOD-RFID125/ and 13.59 Mhz https://www.olimex.com/Products/Modules/RFID/MOD-RFID1356/ which cost EUR 25.95 and allow you to build access control with Raspberry Pi

6. Bluetooth module https://www.olimex.com/Products/Modules/RF/MOD-BT/ for EUR 19.95

7. WIFI 802.11n 150MBit RTL8188CU module https://www.olimex.com/Products/Modules/RF/MOD-WIFI-RTL8188/ for EURO 7.95

8. Zigbee module MOD-ZIGBEE-UEXT https://www.olimex.com/Products/Modules/RF/MOD-ZIGBEE-UEXT/ for EURO 17.95 which allow you Raspberry Pi to connect and control Zigbee network

9. Zigbee PIR module https://www.olimex.com/Products/Modules/RF/MOD-ZIGBEE-PIR/ which cost EURO 18.95 and allow Raspberry Pi to detect movement via Zigbee network

10. Quad band GSM/GPRS module https://www.olimex.com/Products/Modules/RF/MOD-GSM/ for EURO 49.95 which allow Raspberry Pi to send and receive phone calls, GPRS data and to send and receive SMS

11. GPS module https://www.olimex.com/Products/Modules/GPS/ which cost EURO 29.95 and allow Raspberry Pi to log your GPS coordinates

12. Wii Nunchuck joystick https://www.olimex.com/Products/Modules/Accel/MOD-WII/MOD-Wii-UEXT-NUNCHUCK/ which cost EURO 6.95 and adds 3-axes accelerometer, XY joystick and 2 buttons so you can control your Raspberry Pi Games

13. Digital 3 axes accelerometer https://www.olimex.com/Products/Modules/Accel/MOD-SMB380/ which cost EURO 14.95 and allow you to measure acceleration with Raspberry Pi

14. Digital 3-axes magnetometer https://www.olimex.com/Products/Modules/Interface/MOD-MAG/ which cost EURO 7.95

15. RS485 convertor with 1000V isolation https://www.olimex.com/Products/Modules/Interface/MOD-RS485-ISO/ which cost EURO 16.95 and allow Raspberry Pi to talk to instruments or DMX network

16. Thermocouple module https://www.olimex.com/Products/Modules/Interface/MOD-TC-MK2-31855/ which cost EURO 11.95 which allow Raspberry Pi to measure temperature -200C+700C with 0.25 resolution and as these modules are addressable you can attach as many thermocouples as you need

17. Heartbeat biofeedback sensor https://www.olimex.com/Products/Modules/Biofeedback/MOD-EKG/ which cost EURO 25.95 and allow Raspberry Pi to log EKG signals

18. Pulse oximeter biofeedback module https://www.olimex.com/Products/Modules/Biofeedback/MOD-PULSE/ which cost EURO 25.95 and allow Raspberry Pi to log oxigene levels in the blood.

Many new modules are on design stage including: 3-channel RGB LED controller, 3-channel 110/220VAC dimmer controller, Single phase Energy metering module etc etc.

BeagleBone-UEXT adapter is on the way also 🙂

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