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.)
psp49 Articles
Lazy Psp Player (automatic Woodchopper)
[Andrew]’s love hate relationship with his PSP is impressive. He used a webcam to watch for the appearance of the woodblock and used a small motor (probably serial or parallel actuated) to trigger the button on command. It’s a little silly, but it’s a good exercise for computer visual interaction.
Happy Halloween Extra
[Update: pumpkin carved by Team Hack-A-Day member mastershake916]
We’ve got plenty of tricks around here, and I’ve got a treat coming up – you’ll hear about it in the next podcast.
[Ronald Schaten] sent me his USB LED fader. ATMega, PWM lit LEDs, he uses it to indicate status on his pvr.
[computerguru365] sent in his cell phone car charger turned USB cable
[steve] sent in this over the top C64DTV mod.
[Everett] sent along his button activated PSP shoulder lighting.Nice tiny soldering work for that on.
[Jorge] sent in his friends latest junk art metal lathe. Not an easy thing to build – Nice!
[gijs] sent me this crazy bent Casio SK-1. We’ve had a few of these on Hackaday before.
[seniorcheez] sent in his iPod shuffle dock with integrated power and tunecast.
PSP Analog Stick Part 2
I’ve been getting some help with How-To’s over at engadget. One of our favorite hardware hackers Ben Heckendorn put up part two of his analog joystick PSP mod. When he showed me the original I was surprised at just how simple this mod is. Part one showed off the wiring, while part two puts it in a clip on enclosure. Who else would strap a jerky tin to his PSP?
PSP Firmware Downgrader
[wraggster] was first to send in the latest news on PSP hacking. Yesterday a firmware downgrader was released to take PSPs running v2.71 down to the homebrew friendly v1.5 firmware. The authors took advantage of a tiff expolit to get it working and apparently bricked four PSPs in the process. Looks like it’s working, but there are plenty of caveats to read up on before giving it a shot.
Simple GPS Setup For PSP
[deniska] is working on a real-time GPS map viewing application. The application will determine the location using this simple PSP GPS setup. Deniska modified the connector on a $100 Holux GPS unit so that it could be read through the PSP remote port. A test program that works in kernel mode is provided. Deniska notes that this will probably work with older (read: cheaper) Holux units as well.
[thanks Will]
PSP Remote Serial Interface
This PSP remote interface article gets submitted from time to time, but keeps falling through the cracks for some reason. [XyTec] submitted it most recently and I finally remembered to post it. It’s a guide from last July on interfacing with the PSP’s remote port. The port is a serial interface at 2.5V so you need to do some level shifting. Once the cable is complete you can use it get a serial console, add GPS or dump debug info along with many other possibilities. A remote emulator program is provided.
