Author Archive for Chris

Quick test with the ITDB02-2.4S


ITDB02-2.4S Iteaduino MEGA 2560
CS D10
D/C D9

Connecting the ITDB02-2.4S TFT LCD up to the Iteadstudio Mega (2560) only needed the SCK/MISO/MOSI connections moving to the dedicated pins rather than the D13/D12/D11 pins used on the Uno – the standard example code can be used. As can be seen from the image above I coded up a simple numeric keypad with basic de-bouncing to test it out a little more.

Intel Galileo – Windows Developer Program For IOT

Intel GalileoToday’s postie visit (well Mr FedEx) brought the Windows On Devices Intel Galileo kit a day earlier than expected! Modified Intel Galileo Box On the box I find the scary label advising me it’s “Not for resale” (fair enough) and “This intel(R) Galileo board is supplied with a pre-production version of Microsoft Windows(C) and has been modified by Microsoft in collaboration with intel, to run Windows.” which makes me curious of what changes they’ve made to it.

Underside of Intel GalileoThe first thing I noticed when taking the Intel Galileo out of the box was how much space the PCI-E Mini Card connector on the rear of the board needed (it sticks out around 9mm), on the top of the board most of the thickness (11mm) is caused by the Network connector and DC barrel jack.

The kit also included a few other goodies.


TrendNet TU2-ET100

The rest of the package included a Power supply (3A 5V), USB network adapter and cable, 16GB Class 10 Micro SD (with adapter) and a green LED.

3A 5V PSU, 16GB Micro SD card and a green LED.



Now to get it connected and start playing^Wdeveloping :).



WS2812B Quick Test


Today the postie brought 100 WS2812B RGB LEDs from a recent eBay purchase. To give them a quick test I soldered “legs” onto a couple so they could be used on the breadboard easier.

Using the NeoPixel library and the Iteaduino MEGA I had them up and changing colours within a few minutes – all looks good :).

Now to move onto the next test…

NavSpark G2M1 GPS/GLONASS Antenna Module

IMAG0592My Free G2M1 GPS/GLONASS Antenna Module arrived today from the NavSpark store.

From the size and specs it looks to be the partial innards of the SkyTraq G2M1-A.

I’m not sure why they included the 12 way 0.1″ pin header as it’s not going to match up to the 1mm pitch connector and there are no other connectors on the module.IMAG0596sm

Farnell Say No (403 Error)

I’m not sure why but a couple of days since placing my last order Farnell have decided they don’t like me anymore :(.

Farnell 403 Error

After speaking to them I found they was unable to do anything with the Incident Number given on screen – he could take the number and pass it on but that was all. My personal details wasn’t asked for and the only suggestion other than clearing my cache was to keep hitting refresh until it worked.

During the call the guy did ask if there was anything I could do, after resisting temptation of asking for the admin passwords to the servers so I could take a look I decided I’d go with the light-hearted “I could go for lunch” reply.

I have a feeling my day will be more rocket salad than rocker switches :(.

Low voltage power distribution with Dirt Cheap Dirty Boards

IMAG0470When the postie was sporting a weird look this morning I knew it could be due to DirtyPCBs and I was right:).

I currently have a couple of Iteaduino Plus boards as BGP routers, the Odroid-U3 connected to 3 of my high power USB hubs and the Parallella at home which all run off an enclosed 100W 5V PSU. To add/remove a device from the power was awkward as I’m just using spade terminals joined on the USB hub screw terminals to distribute the power between the devices.



DirtyPCBs Power distribution

The boards will be used (along with a 3D printed base) to allow me to connect/remove individual items from the power without disrupting the other equipment (especially the BGP routers). They’re very basic boards but the quality looks good including the silk screen alignment which is one thing that normally bugs me with cheap PCBs. All they need now is the screw terminals soldering on with the indicator LED/resistor and having time to shut everything down to move it over.


Yay stickers :)

Odroid-U3 USB Failure

USB Hub - Upstream power bad

USB Hub – Upstream power bad

My Odroid-U3 is normally directly connected to one of my high power USB hubs which is used by some Block Erupters. On Friday all of the Block Erupter lights went green, I lost contact to the Odroid-U3 via the network and the power lights on the hub showed a lack of power on the upstream data port and the only things displayed on the Odroid-U3 when running lsusb via the serial console was the two USB root hub lines.

Isolated USB Hub v1.1

Isolated USB Hub v1.1 PCB

Isolated USB Hub v1.1 PCB

Version 1.1 of the Isolated USB Hub PCB arrived this morning from Iteadstudio and the first thing I noticed was the silkscreen looks to be aligned correctly!  It would be nice if they all came correctly aligned but for the price I shouldn’t complain too much ;-).