Unbrick the Eachine Lizard 95 – How To Reach The Boot Pin

June 29th, 2017

Today I bricked this little drone by flashing the wrong firmware (whoops)! Turns out that the correct board to choose when flashing a new firmware is “OMNIBUS“. Oh well, good opportunity to learn how to take this thing apart. Unplug the camera plug from the side by gently pulling the cable out. Optionally also remove the props (I didn’t) to have more maneuvering space later on. 2. Set the drone on its back, and remove the 8 screws circled below […]

How To Mount a GoPro on a Syma X5C

March 21st, 2016

It is indeed possible to mount a GoPro on a Syma X5C. It is however, not ideal, since the Syma X5C is a toy and its payload capacity is limited. But if you’re like me and you like to push the limits of your hardware, this is not going to stop you from trying, is it? 🙂 I used a GoPro Hero3+, but the process should be similar for other models. 1. Reduce the Weight The Syma can’t pull much weight. […]

My hardest debugging session just ended today

November 28th, 2013

The hardest debug situation of my life just ended. Celebrate! I was trying to make a USB audio adapter to work on an embedded device running OpenWRT, but Linux wasn’t recognizing the USB device. The device turned on, but wasn’t getting mapped to /dev. So I think, ok, I probably forgot the modules. I Installed the modules. Still no luck. Maybe I chose the wrong modules? I started trying different permutations of modules (with each try taking half an hour […]

Funniest Electronics Quiz

December 15th, 2012

This was my Thanksgiving take home quiz for my electronics class. My professor sure has a sense of humor.

GLA I – The building of a multi-touch table

September 20th, 2012

The GLA I (Glassomium one) is still a work in progress, but it’s so exciting seeing it come alive! The mirror mounts and camera still need to be put in place, the back needs to be covered, the IR lights need to be installed, a power supply circuitry needs to be built, fans need to be added and a few other minor details need to be taken care of. During the summer I came up with the design, then through the ACM […]

Don’t let your Playbook fall below 1% battery… or just don’t buy one.

July 25th, 2012

Do you like my charger for the Playbook? No, it’s not because I lost the original, neither because I have so much free time that I’d rather take apart my tablet instead of buying a replacement cable. It’s because some engineer thought it would be clever to require at least 1 or 2% of battery left to start the charging process. Now that doesn’t make sense at all. Seriously? I haven’t used/charged my playbook in a month, so there’s no […]

Arduino, why didn’t we meet before? My first basic light show.

December 16th, 2011

So lately I’ve been taking some introductory classes that are part of my Electrical Engineering minor and I have to say that they turned out to be quite boring and never deviated from the typical “looking at graphs on the oscilloscope and calculating values on circuit diagrams”. Yet the subject is extremely interesting (and fun to play with), so I started reading on my own. I was particularly interested to read about programmable micro controllers, so I couldn’t wait much […]