Who fears from the competition? RPi Foundation pressed Broadcom to stop selling BCM2835 to competing projects.


On July 29th I blogged about the Raspberry Pi Clones which now exist and the new Odroid project which actually makes better hack friendly module based on BCM2835 including better power supply, LiPo battery support etc features.

This is pure example that no matter if your project is open or closed hardware it could be cloned if there is enough interest to do so.

Also I made speculations that due to the bad financial condition which Broadcom faces due to the Chinese SOC competitors they start selling their BCM2835 to anyone with money.

Well this must have upset RPi Foundation a lot and they should have start to pess Broadcom about stop selling the BCM2835 to others than RPi.

Today Odroid guys wrote on their G+ account: “We have to stop ODROID-W project soon since Broadcom will not supply the SoC to Hardkernel anymore.
When the first trial batch is sold out, you can’t buy the ODROID-W anymore. Sorry for the inconvenience.”

New Product in stock: SD-MMC 4GB card Class10


This is Class10 fast 4GB card suitable for Raspberry Pi or as second disk on A20-OLinuXino-MICRO and A10S-OLinuXIno-MICRO second SD-MMC connector.

We also got in our webshop blank micro SD cards:

  • 4GB Class10 this is same card we use to write Android and Debian images for A13/A10S/A20 OLinuXino
  • 4GB Class4
  • 8GB Class4

all these could be found in Components->Storage section: https://www.olimex.com/Products/Components/Storage/

Does the Dog eat the pie?


Electronic Design magazine had interesting interview few days ago with Jason Krinder about BeagleBone Black. The new $45 ARM board backed by the TI heavy marketing artillery.

According to Krinder they are selling now over thousand per day.

There is big silence in RPi corner since BBB release, there are no new bombastic announcements for round numbers in sales anymore, so does this means BBB ate the RPi sales? We are about to see by the end of the year.

A13-OLinuXino comparison to RPi, APC and CuBox


Gareth Halfacree is Freelance tech journalist writing for Linux User & Developer UK Magazine and co-author of “Raspberry Pi User Guide” book http://www.amazon.com/Raspberry-User-Guide-Gareth-Halfacree/dp/111846446X

After the Linux Conference in Barcelona this November where Radoslav Kolev presented OLinuXino he contacted us and asked for sample A13-OLinuXino to test, we sent him A13-OLinuXino-WIFI and yesterday he posted on Twitter some interesting comparison charts.

He is comparing: Raspberry Pi, VIA APC, CuBox, A13-OLinuXino and his desktop computer AMD A10-5800K by several features performance per: price, power, size.

First chart is performance per 5W: http://freelance.halfacree.co.uk/charts/armbenchmarks-power.html as you can see here VIA-APC have worst ratio, while AMD is with best and A13-OLinuxino immediately next to it with only 11% worse performance.

Second chart is performance per price: http://freelance.halfacree.co.uk/charts/armbenchmarks-price.html here CuBox is with worst ratio while A13-OLinuXino is again next to AMD desktop followed very closely by Raspberry pi.

Third chart is performance per size, knowing A13-OLinuXino 120×120 mm size I didn’t expect here to be an leader : http://freelance.halfacree.co.uk/charts/armbenchmarks-size.html here CuBox is on top and VIA APC is with worst rate

Overall A13-OLinuXino show very good performance/features ratio on these charts!

Raspberry Pi can now work with UEXT modules


In my previous post https://olimex.wordpress.com/2012/11/21/raspberry-pi-gpio-to-breadboard-and-uext-adapter/ I wrote about the Raspberry pi adapter we designed which allow Raspberry Pi to have access to the modules we have like Relay modules, Thermocouple sensor modules, 3-axis magnetometer and accelerometers, Zigbee, WiFi, GSM, GPS etc.

The RPI-UEXT adapter is already in stock and you can wire it to your Raspberry Pi with any 26-pin ribbon cable, we do offer 15 cm cable also which you can use with RPI-UEXT

On this video you can see how Raspberry PI is controlling MOD-IO 4 relays with the help of the RPI-UEXT adapter: http://www.youtube.com/watch?v=vuHU2SmLYBI

to make MOD-IO control as on above video with your RPi you should do as follows:

step 1:

sudo vi /etc/modprobe.d/raspi-blacklist.conf
The file should look like:

# blacklist spi and i2c by default (many users don’t need them)
blacklist spi-bcm2708
#blacklist i2c-bcm2708

step 2:

sudo vi /etc/modules

# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with “#” are ignored.
# Parameters can be specified after the module name.


step 3:

sudo apt-get install python-smbus

step 4:

sudo vi modio.py

import smbus
import time
bus = smbus.SMBus(0)
address = 0x58

while 1:
bus.write_byte_data(address, 0x10, 0x0F)
bus.write_byte_data(address, 0x10, 0x00)

step 5:

sudo python modio.py

and you will see how the relays go ON and OFF 🙂

have fun!