iMX233-OLinuXino with LCD 4.3″ and touchscreen


iMX233-OLinuXino uses TQFP version of the iMX233 and in the datasheet is written that this package do not support other than 8-bit LCD interface. So as this is written in the datasheet by the manufacturer we just trusted it and didn’t plan to release LCD for it, as the 8-bit interface limit the choice only to intelligent LCDs with internal RAM.

Claude Schwartz though proven the datasheet info wrong! He wrote on the irc #olimex channel that he made iMX233-OLinuXino-MAXI to work with both dummy and intelligent LCDs in 18 bit mode, so we sent him one A13-LCD4.3TS LCD to check and he sent us the picture above one day after he received the LCD.

This is iMX233-OLinuXino-MAXI wired with A13-LCD4.3TS LCD in dumb 18 bit mode, he attached USB-TV dongle to iMX233-OLinuXino-MAXI and actually this is TV stream from ZDF, iMX233 power is limited so he got only 3 pictures per second and this is more like slide show than TV stream.

Then he decided to do another test and compiled DOOM game for 320×240 pixel resolution and run it on iMX233-OLinuXino-MAXI with LCD, the result is here:

So despite datasheets write we can’t use dumb LCDs with the iMX233 in TQFP package, this is proven to be wrong.

Now the next challenge is to make the LCD touchscreen to work as iMX233 in TQFP package have only 3 ADC inputs, as Claude already prove the hard things are easy to solve, the impossible (according to the datasheets) just take some more time, so the touchscreen support is just matter of some more time.

Next step if touchscreen is complete? Building small board with iMX233+4.3″LCD+LiPo battery to create low cost Game console!

iMX233-OLinuXino ARCH Linux image with RTL8188 WIFI support


New ARCH Linux image with included RTL8188 WIFI support is updated on iMX233 OLinuXino WIKI

This is the latest image good for all board MICRO, MINI, MINI-WIFI, MAXI. It supports all board features like I2C, SPI, UART, TV console, Ethernet, WIFI. We recommend to use it and if you have early image to upgrade to this one.

The direct link to the image is here

The Kernel version is The kernel version is 2.6.35-8-ARCH+

The default Login is root  / root

If you use MICRO or MAXI plug MOD-WIFI-RTL8188 then type

# wifi-menu

you will see list of the available WIFI networks to connect to, select one and login with your password if the network is encrypted. Your wifi settings will be stored in /etc/network.d/wlan0-xxx, where xxx is your network name



iMX233-SJTAG is serial-to-parallel JTAG converter which allow iMX233 processors to be debuggged with ordinary 20 pin JTAGs like ARM-USB-TINY-H, ARM-USB-OCD-H etc by only two pins.

All of our iMX233-OLinuXino boards have provision for SJTAG connection just the female connector is not populated as only few would need to debug RTOS with hardware debugger.

Everyone have chance to win iMX233-SJTAG today if answer correctly to our Quiz question.

Today at 17.00 o’clock our local Bulgarian time (GMT+2) we will post on Twitter our question.

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 to generate random number in range then anнounce the winner and ship the board by airmail next Monday.

Good luck!

iMX233-OLinuXino interfacing Zigbee networks with MOD-ZIGBEE-UEXT


MOD-ZIGBEE-UEXT is low cost UEXT module which can act as Zigbee coordinator and to talk to all Zigbee devices nearby.

This GitHub project add Zigbee interface to iMX233-OLinuXino-MAXI and allow MOD-ZIGBEE-PIR sensors to be scanned and if movement detected to log it into file.

After downloading and building add the zigbee.php to your web server directory.

Attaching Color LCD to iMX233-OLinuXino-MAXI with MOD-LCD6610


MOD-LCD6610 is color graphics LCD with 128×128 pixel resolution.

This GitHub project allow iMX233-OLinuXino-MAXI to display text and graphics in different colors to MOD-LCD6610.

iMX233-OLInuXino-MAXI interface with MOD-LCD3310 graphic BW LCD


MOD-LCD3310 is low cost black and white graphical LCD.

With this project on GitHub you can write text positive and inversed, draw dots, lines, circles, rectangles, triangles, elipses on the LCD.

iMX233-OLinuXino-MAXI and lot of Relay IOs through MOD-IO

MOD-IO is UEXT module with 4 relays and 4 optoisolated inputs, the great thing is that many MOD-IO could stack together and this way you have access virtually to unlimited number of IOs.

This project on GitHub make iMX233-OLinuxino-MIAXI to talk and control MOD-IOs

iMX233-OLinuXino-MAXI measure temperatures -200C to +700C with 0.25 resolution


MOD-TC-MK2-31855 allow tempearture measurement with high precission in range -200+700C.

As this board interface UEXT connector via I2C many such modules and thermocouples can be attached to one UEXT.

This GitHub project allow iMX233-OLinuXino-MAXI to measure temperature with MOD-TC-MK2 and K-type thermocouple.

iMX233-OLinuXIno-MAXI interface MOD-SMB380 3-axis accelerometer both in I2C and SPI mode demo example


Accelerometers are used to measure the acceleration in three axes X, Y and Z. These devices are very handy when you want to measure how objects move.

MOD-SMB380 is UEXT module with digital SMB380 accelerometer from Bosch. as it have UEXT interface it’s easy to interface it to any board with UEXT, SMB380 supports both SPI and I2C interface, so the demo example can use both as both interfaces are present on UEXT connector.

Download the code from GitHub and build it:

# ./mod-smb380 -spi

switch to SPI reading

# ./mod-smb380 -i2c

switch to I2C reading

RFID logger with Web server interface made with iMX233-OLinuXino-MAXI and MOD-RFID125


MOD-RFID125 and MOD-RFID1356 are USB RFID readers for 125Khz and 13.56Mhz RFID tags. They both support keyboard emulation mode and CDC Serial port communication mode and can be used with iMX233-OLinuXino-MAXI.

The project on GitHub creates RFID logger which logs when user approach with it tag and is controlled via web interface.

You should download the project from GitHub and build it then add rfid.php  to your web server directory.

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