Circuit Board Repair


[Wayne] sent along this interesting read on circuit board repair. Even if you’re not uh, repairing, it’s interesting to get some ideas for modification techniques. Pictured is a DIP IC that’s been placed upside-down over the old one with a set of jumper wires. I can only aspire to produce solder joints that look that nice. Good stuff.

Just so the Unofficial Team-Hack-A-Day guys don’t crucify me, they too have been making their own shirts. Thanks [mastershake916].

Aww, They Like Us. (DIY HAD T-shirts)


Over on the Ben Heck forums, moderator G-Force made his own Hack-A-Day T-shirt. I dunno guys, do we need to start selling them? In the past, our swag has been by give away only. Thanks [Marshall]

It’s been a couple of exhausting weeks since the deadline for the Design Challenge. I’m going to finish up going through the entries and we should have a winner sometime next week.

Optoisolated Xmas Light Control


[buzzkill] brought this crazy christmas light controller to my attention. The hack is pretty neat. The potiometers in several standard dimmers were replaced with photo-resistors. When squares of the screen are lit, the dimmer is activated. In essence, it’s a cheap optoisolator for controlling AC power. The software that generates the interface appears to be sound actuated once it’s programmed by the user.

Oldschool NES ‘repair’ How-to


[sebastian] sent in his NES ‘repair’ how-to. (coral cache) It’s more of a guide to modding the NES for more user friendly operation. Emulators and a USB game pad usually do the job for me, but there’s nothing quite like the original hardware. Hmm, I just ran across my NES advantage joystick earlier today.

Cheap Function Generator


I’m inclined to put up [nuxie1]’s function generator how-to because he also submitted a very nice Design Challenge entry. The generator is based on the cheap XR2206 IC which will generate functions at up to 1Mhz. Definitely handy to have around.

His Design Challenge entry was really over the top. It’s another USB PIC programmer, but he laid out three different desings. A full-on SMD, a home build SMD and a through hole board. Nice work.

We’ll be announcing the winner of the Design Challenge in another week and a half or so – we got quite a few entries and it takes a while to really review them.

DC Entries: Relay Board, PONG


I’ve got a couple more design challenge entries for ya. (The first one made the entry deadline, but he had to repost it to another web host – no whining about how it was posted on the 26th)

[Joe]submitted his Parallel port relay board. He’s still working on the software to drive it, but the board looks good. He suggests cutting a parallel cable to make the input. (I’ve done it, it’s a pain) I’ll suggest soldering the inputs directly to a solder style DB25 – or add some edge traces so that a cheap solder style connector can be attached directly to the board.

[Andrew] built and submitted UPONG – Pong on a LED dot matrix display. It reminds me of the pong hat. He’s even put up a video of the game in action.