HubPiWi Blue reported working with Jan ( 2017-1-11) Raspebian

March 1st, 2017

I received an email from Jay Fallah who reported the procedure to update the Raspbian 2017-1-11 lite to make it work with the HubPiWi Blue. I am just reproducing the steps.

Down the latest raspbian 2017-1-11 lite version
got the ssh running and ssh’d to it.

installed cmake, git, build-essential

installed linux-headers-4.4.0
installed raspberrypi-kernel-headers

downloaded driver package
git clone

changed Makefile

changed to folder rtl8723bu
sudo make install


He has also reproduced the video of the steps that can be seen here.

I have not verified it. If someone can verify this and let us know in the comment that will be great.


Raspberry Pi Zero W - Includes Wifi and Bluetooth

February 28th, 2017

Yesterday, we saw the launch of Raspberry Pi Zero W, the integrated Wifi and Bluetooth in the same board. The price has been increased from $5 to $10. With this integration the Pi Zero becomes more useful and you can do many more things with it.



The Pi Zero availability is suffering from the same availability issue as the Raspberry Pi Zero at the launch. When we checked at different websites for it on 2/28/2017 at 8:00 AM, it was out of stock on all websites. These are however being sold as an add on which Pi Hut says "Raspberry Pi Zero W with essential kit".

USB Hub Still missing

The one components still missing with Pi Zero W is the USB Hub. All you have a only a single Micro USB Connector. Possibly once you set up a Bluetooth Keyboard and Mouse you should be good to go. However, if you wish to hook a USB based Keyboard or a mouse, you are out of luck.

How it impacts the Reference Designer Add on Boards

Reference Designer Add on boards Hubpixed, HubPiWi and HubPiWi Blue were designed to mate with the Test Points available on the rear of the Pi Zero. The newer version of the Pi Zero still seems to have the Test Points, but its position might have changed. We will know it for sure when we get the samples in our hands. The HubPiWi and HubPiWi Blue will gradually be phased out, as with the Wifi and Bluetooth are already included in the newer Pi Zero W. A newer version of the Hubpixed that we will call as HubPixed W - will be designed and will be made available in about 3 weeks.

If you already have the Raspberry Pi 1.3 version, you can make it useful by purchasing Hubpixed, HubPiWi or the HubPiWi Blue. If you have purchased or are planning to purchase the Pi Zero W - you may want to wait for the release of the Hubpixed W to make these more useful.

We welcome the launch of the Pi Zero W - the only missing thing in it is the integrated USB Hub. The Pi Zero may want to integrate the USB and make this product more useful.


The rear side of the board says -"Uses Antenna technology Licensed from Proant AB". The rear side also includes its FCC ID - 2ABCB - RPI0W

Update - Pogo Pin Alignment

We took some side by side pictures of the rear side of the Pi Zero with Pi Zero W and these align pretty close to the extent that we may expect the Hubpixed to still work.




Comparing netlist and designs in in Allegro and Capture

February 25th, 2017

How do we compare two Allegro brd files x.brd and y.brd and get a list of changes ? On the similar note how we we compare two OrCAD .dsn Schematics design.

This is the subject of this blog.

The Allegro provides a nice tool that is integrated in it - It is called Design Compare. Let us say you have two designs x.brd and y.brd. What you do is - open the x.brd file and then goto Toos -> Design Compare


Once you do that you can see an XML file that basically will have netlist and Package List. You can then expand this to see the netlist if required.


Now open the second design y.brd and again go to Tools -> Compare which will bring you the same window as the above. At this point click on the open folder icon and open the previous xml file 9 corressponding to x.brd) .


At this point you will see two side by side windows something similar to this


You can now click on the Filter Icon and select the required settings ( For Example Differences Only) and hit OK which will give you the List of differences.


The Scheme can be extended to compare two OrCAD Schematics Capture file differences. To compare two OrCAD Capture files A.dsn and B.dsn we generat two brd files x.brd and y.brd and then follow the same procedure above. It is a little longer and - but it works.


How to import text file in Allegro PCB

February 25th, 2017

In many cases, you need to import a text file in the Allegro PCB. A common example is the text in the Drill drawing. You may want to have a common text
file that you include in all the PCB designs, so that you do not have to include the same text again and again.

We assume that you already have a text file that has the content you want to import.

All you have to do is go to Add -> Text.


Then click at the place where you want to place the text ( you can move it later) and then click the right mouse button and select "Read from File". You can then point to the file you want to import the text from and you are done.


If you repeatedly use same text ( in for example Drill Drawing text), you can save the text as a sub drawing and then import the subdrawing in other designs. Let us say, your design A.brd has standard text. You need to open the A.brd file then go to File -> Export -> Subdrawing and then Select the text you want to export. It will prompt for the Filename you wnt to save it as. Let us call it DrillDrawingtext

Now you want to import this file to B.brd. Place the file DrillDrawingtext.clp that you imported in the same directory as your B.brd. Now go to File-> Import -> Subdrawing and it will list the the File DrillDrawingtext.clp that you placed in the director. Click it and place the text you want to.

We have complete Allegro PCB Tutorials here and we have added many more common footprints. Some of the recently added footprints are

1. Common BGA
2. QFP ICs
3. Common Connectors
4. DIP ICs
5. Common ICs
6. Common Inductor
7. Common Diodes
8. Common Transistors


Software Drive For 8GB Cards for HubPiWi Blue

February 21st, 2017

Good News! We've made the software drive available for the HubPiWi Blue. As per the 16GB Card, please make note of a few things.

- This is a fresh new version of Raspbian Jessie Pixel 1.2 Feburary 2017. This means that you will have a fresh out of the box version of Raspbian, only slightly modified, so that the HubPiWi Blue is compatible.

- This 8GB Card is compatible with both a 16GB card and an 8GB card.

- You will have to write this onto an SD card, like the regular Raspian Jessie. You can use a programmer like Win32 to write the file onto an SD card.

Have a happy time surfing the web on your Pi Zero. 🙂

Download Link:


New "Software Drive" for HubPiWi Blue.

February 15th, 2017

Good News! We have now made a 'software drive' avalible for the HubPiWi Blue. You can download it here:

Please note a few key things before downloading.

- This is a fresh new version of Raspbian Jessie 5/27/16. (The Newest version is not compatible with the HubPiWi Blue yet). This means that you will have a fresh out of the box version of Raspbian, only slightly modified, so that the HubPiWi Blue can work.

-This is ONLY COMPATIBLE WITH 16 GB!. We made the kernel on a 16GB card. This file will most likely only work with 16 GB cards. We will be making a version for 8GB cards by 2/20/17.

- You will have to write this onto an SD card, like the regular Raspian Jessie. You can use a programmer like Win32 to write the file onto an SD card.

Have a happy time surfing the web on your Pi Zero. 🙂

Download Link: