Bus Pirate Necktie Clip Case

Last year, I got Bus Pirate kit from Dangerousprototypes as a prize for last year 7400 competition. Thanks again DP. This is now an essential tool in by bench. It is not only BP. It came with a box, LCD back pack, test probe, lots of jumpers,.. a complete kit.



After getting BP, I try to make a case as usual. Mostly, I prefer acrylic style case like my OBLS and PICKit2. DP calls it “Sick of Begie” case. This time, I found out something which was suitable for the Bus Pirate case.

BusPirate_case (1)

Yes, a necktie clip case.

BusPirate_case (2)

GOOD, BP fits inside it.

BusPirate_case (3)

First, make holes for plastic snap-in fasteners.

BusPirate_case (4)

Second, filing the edge for USB cable connector.

BusPirate_case (6)

Then, make a rectangle for probe cable. And fitted the snap-in rivets.

BusPirate_case (7)



Finally, the case for BP was finished. It took about 15 minutes.


DIY Old Laptop to All in One PC

I was busy with some tasks between past weeks. Unluckily, one of my development gear, old laptop was not in a good condition since a few weeks ago. It is a PIII laptop with 1GHz CPU and  loaded with my developments tools. I picked it up from disposal since three years ago. When I picked up this, battery was dead, motherboard was not boot, screen lids were broken.  I checked that mother board power supply capacitors leakage and replaced with new capacitors, fixed the screen lids with some epoxy, glues and heat gun. The old laptop was in service at that time. This laptop was manufactured from  infamous brand  Taiwan manufacturer but it’s performance was surprisingly good and stable. Now, it seem end of life again.

I love recycling and reusing things when there is possible. Is that good for environment and also for my pocket? 😀

So, I started a weekend job to recover this hardware. Here is an original photo of this, screen lids and parts of body are broken. Some keys from keyboard are not respond and motherboard was unstable again.

My Idea is to transform this laptop as All in One PC by flipping installing LCD screen over body and making a base+mounting stand my self.

Laptop-2-AllinOne (1) Laptop-2-AllinOne (2)

Take apart all parts first. Removed battery, keyboard, mouse pad, up-side cover, floppy drive and CD drive.

Laptop-2-AllinOne (3) Laptop-2-AllinOne (4)

Up side cover with speakers, mouse pad.

Laptop-2-AllinOne (6)

Removed LCD screen from body.

Laptop-2-AllinOne (5)

Took off mother board to clean and to check.

Laptop-2-AllinOne (7)

The problem was the same as previous, leakage  capacitors at power supply. Replaced these capacitors and mother board is boot again. This is a common fault symptom of electronics devices especially manufactured about 2000 or cheapo ones.

Laptop-2-AllinOne (8)

Started hand-tools jobs.

Laptop-2-AllinOne (9)

Prepared down side cover holder. Reinforced with two metal flat sheets.

Laptop-2-AllinOne (10)

Finished down side cover with holders. Two L-shape aluminium support ware also installed at the side to fix LCD panel.

Laptop-2-AllinOne (17)

Took off LCD panel. I want to flip LCD panel and re-install it over the motherboard part to form like All in One PC. The LCD  connector cable was a little short to do this. So, the cable was took of and straighten and repacked again.

Laptop-2-AllinOne (11)

Laptop-2-AllinOne (12)

To seat LCD panel over down side cover, I installed L-shape aluminium stands at the back side of LCD cover.

Laptop-2-AllinOne (13)

Prepared the base and stand for mounting.

Laptop-2-AllinOne (14)

Panel mounting was finished.

Laptop-2-AllinOne (15)

The back installation of panel mount.

Laptop-2-AllinOne (16)

The first test assembly of down side cover and mount, base.

Laptop-2-AllinOne (18)

Re-installed motherboard, hard disk. Old battery, keyboard, Floppy and CD drive ware completely removed.

Laptop-2-AllinOne (19)

Speakers were re installed at new place (originally battery place).

Laptop-2-AllinOne (23)

First test assembly was finished. All in One style!!!

Laptop-2-AllinOne (20)


Back side of assembly. L-shape angles are used to attach LCD scree to base. A USB hub is attached and USB WiFi adapter is installed.


I bought a USB keyboard for re-branded PC.

Laptop-2-AllinOne (22)

Finally, the oldie classic PIII All in One PC is alive at my workbench. How a happy weekend hacking.

Laptop-2-AllinOne (25)



Laptop-2-AllinOne (28)

By the way, this is my last post of 2012.


Open Bench Logic Sniffer Custom Case

I make a case for my brand new Open bench logic sniffer and shared this work log here.

– First, measure one transparent and one black acrylic glass.

– Cutting acrylic is not easy for beginner. I used acrylic scratching/ scoring tool which I bought from local plastic sheet supplier. Scratch the plate with this tool and bend over table edge. Not need to scratch too deeply, only 1/2 of the plate is enough. If you don’t clear what that tool is, see this “Tools for working with acrylics”.

– Then, measured and drilled the holes. The problem is that there is not much hole for screw in logic sniffer board. So, I try to use plastic washer to hold/keep the board. The sketch is as like this (not scaled).

Cut the plastic washer like this (only half deep). Sorry for shaked photo.

Drilled the plates and file the corner with file to get round shape.

Assembled like this.

Side view,

Finally, new custom case for my OBLS.

I also make a test project (logic signal pattern generator) for testing logic analyzer. I will update in the next post. Stay tune.