[john] mentioned this on the LCD LED backlight post. Given the date on the posts, I was surprised that we haven’t seen it before. He replaced the CCFL lamp with 32 1 watt luxeon LEDs mounted on a custom copper water cooling block. The result is bright enough to be sunlight viewable in his car.
Part 2 of Ben Heck’s Wii laptop How-To is up. The first half is all about the little touches, wiring switches, extending connectors, etc. The second half delves into designing the actual unit. Some of the comment’s on Engadget seem to want a full bore step by step build, but fail to realize that he’s really giving them the gold. Very few designers give away their intermediate design steps – But I am reminded of some of the Star Wars movie extras…
While I was on vacation, [Fanjita] and [Ditlew] released a downgrader for PSPs running v3.03 firmware. To get it to work, you’ll need an unpatched copy of the GTA:Liberty City Stories UMD. The hack should get you down to v1.5. It’s supposed to work on all current PSP hardware. Thanks to [wraggster], [Steve DiRaddo]. [Sean] submitted the same info [via noobz], but they don’t appear to have credited the authors. (Unless of course, the authors are part of noobz.)
[ashish] sent in this one via the tips line. It’s a project to create a laser based RS-232 link. It’s based on cheap laser pointers, a MAX232 and a photo-resistor to receive the signal.
It seems Hack-A-Day’s resident snow bunny has run off to Utah and left me holding the proverbial bag. How could a heart broken hacker possibly console himself? How about the soothing sounds of the Atari Punk Console? Well… soothing is a subjective term, but the screaming, bleeping, fuzzy sound generated by this simple circuit is great. Since their first post on the Atari Punk Console circuit last fall, GetLoFi has collected many different examples of the circuit. It’s just a 556, a few caps, and pots so it lends itself easily to modification. The most recent post is built in an actual Atari mouse.
This one is fitting – I was just checking out Suunto’s sweet gps data logging watches today. [Steve Cholewiak] sent in his diy GPS data logger. It uses an old DeLorme tripmate – these were serial gps units that ran off of internal batteries. A PIC controller reads the NMEA sentences from the tripmate. Then it stores the track data to an EEPROM. The same serial connection is used to retrieve the data later on. [Steve] did a great job writing this up, the circuit is pretty simple and he’s provided all the information you need to build your own.