Archive for the 'Microcontrollers' Category

ODROID-XU4 octal core Samsung Exynos 5422 Review

Sunday, August 16th, 2015

I’ve finished my ODROID-XU4 Review!

ODROID-XU4 Review @ Mikronauts.com

(click on image for larger version)

The ODROID-XU4 is Hardkernel’s new octal-core ARM single board computer.

The performance is excellent, but for all the details, you should head over and read the review:

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LeMaker Guitar BaseBoard Preview added

Wednesday, June 24th, 2015

LeMaker has added some information and photos to their Wiki, so I updated my LeMake Guitar Preview.
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I also added a LeMaker Guiter BaseBoard Preview 🙂

LeMaker Guitar, Lemaker Bass and LeMaker Piano: LeMaker introduced three new boards at Shenzhen Maker faire on June 20, 2015

Tuesday, June 23rd, 2015

LeMaker Guitar Preview

When it rains, it pours!

According to an article published in IotWorld China,  LeMaker introduced three new products at the June 20 Maker Faire held in Shenzhen, China.

(click on image for larger version – image by LeMaker)

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LeMaker will also be introducing an industrial control oriented board called the “LeMaker Piano”, however I was unable to gather enough information for a preview.

What I gathered so far (from the IotWorld China article):

  • open source
  • FreeScale i.MX application processor
  • wide -40’C – 105’C temperature range
  • USB/CAN/GMAC/SATA2/WiFi/PCIe/CSI/DSI and more

BPi-R1 Open-Source router

Wednesday, August 27th, 2014

I was browsing www.banana-pi.com and ran across a new product page – so fresh, that they did not even have a price listed!

BPi router - image courtesy of SINOVOIP CO., LIMITED

(click on image for larger version)

Basically, they made a larger printed circuit board based on a Banana Pi, and added:

  • small gigabit switch (BCM53125)
  • 802.11b/g/n WiFi

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Now this will make a really interesting router for OpenWRT… dual core A20 and 1GB of ram makes for a very powerful router!

BPi router - image courtesy of SINOVOIP CO., LIMITED

(click on image for larger version)

It looks like they preserved most of the connectors from the Banana Pi (except for one USB host port) and added a laptop-style SATA connector on top.

BPi router - image courtesy of SINOVOIP CO., LIMITED

(click on image for larger version)

Note the RTL8192CU WiFi module (now we know where the second USB port went) and the two antenna connectors.

For more specifications on the BPi this router is based on, see my BPi review 🙂

https://www.mikronauts.com/banana-pi/bpi-review/

An expandable, dual core router with 1GB… who would have thunk it?

I’ll have to buy a couple for my lab so I can try them out, they may replace my Linksys WRT54G routers…

 

Raspberry Pi B+ with Pi Jumper

Thursday, July 17th, 2014

Pi Jumper is an advanced breakout board, designed for the Raspberry Pi.

So how well will breakout boards work on the Raspberry Pi Model B+ ?

Pi Jumper on Raspberry Pi Model B +

(click on the image for a larger version)

Quite well, as it turns out!

The stacking header fits nicely on the first 26 pins of the new 40 pin header, and lifts Pi Jumper well clear of the other exposed pins.

This suggests that other breakout boards that use a stacking header, and not a ribbon cable will work reasonably well.

But what about breakout boards that use a ribbon cable?

Hmmm… we can’t just plug the 26 pin IDC header into the 40 pin Raspberry Pi B + connector, as forcing it in would bend two pins badly.

I’ve used stacking headers to be able to mount my boards outside of Pi cases that exposed the 26 pin connector, and others on the forums have as well … and as you can see below, it works well for IDC ribbon cable!

Pi Jumper Plus on Model B+

(click on the image for a larger version)

The ribbon cable is really handy for locating the solderless breadboard a short distance from the Raspberry Pi.

Pi Jumper Plus on a Raspberry Pi Model +

(click on the image for a larger version)

WebIOPi worked well 🙂

Next, I will try RoboPi on the Raspberry Pi Model B +

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