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Playstation Beatmania controller tested

01/08/2010 – 20:02

I got a Beatmania DJ turntable controller for the Playstation and it works perfectly with the Retro Adapter. It’s actually pretty simple; it emulates a digital pad. When the wheel is turned it just presses the up or down buttons on the d-pad. It doesn’t even use analogue for speed sensing etc.

By mojo | Also posted in Retro Adapter, microcontrollers | Comments (0)

The MSF signal is a bit of a mess

28/07/2010 – 00:06

I am working on another clock, this time with MSF (Rugby/The time from NPL)  radio time setting. I know, I need to document the last one… Anyway, I finished the decoder today. The MSF signal is frankly a mess. Things seem to have been added and then removed over the years. There are four different [...]

By mojo | Also posted in avr, microcontrollers | Comments (0)

Mouse+Joystick “computer” mode for the Retro Adapter

18/06/2010 – 18:18

I have just finished updating mouse support on the Retro Adapter so that it now supports a mouse and joystick simultaneously. I am still trying to think of a good name for it but for the moment I am calling it “Computer Mode” because it is ideal for emulating machines like the Amiga or Atari [...]

By mojo | Also posted in Retro Adapter, hardware, microcontrollers | Comments (0)

Maplin Soldering Fume Extractor mini review

12/06/2010 – 23:38

I decided it was time to stop breathing in leaded solder fumes and get a fume extractor. Being on a limited budget getting a new iron with one built in or a larger unit was out of the question. Actually we have an iron with extractor on it at work (Blackjack hot-air rework station with [...]

By mojo | Comments (0)

Bliss Box violating my copyright, GPL and more

13/05/2010 – 17:26

I just spotted this: http://spawnlinux.dyndns.org/Bliss-Box/technical.html It violates my copyright on some of the images such as the schematic and connector diagrams. It also violates the GPL by using V-USB and not publishing the relevant code. Chances are it probably uses some of my GPL’ed code, and the author admitted that it is based off some [...]

By mojo | Also posted in Internet, law | Comments (0)

CD32 pad support added to the Retro Adapter

09/05/2010 – 19:14

Just finished adding support for CD32 gamepads to the Retro Adapter firmware. I discovered a couple of interesting points. 1. The logic ICs used are really slow. I need a 75μs delay after the latch line changes before starting the clock and approximately 50μs before reading on every clock cycle. The shift register is a [...]

By mojo | Comments (0)

MAME and paddle controllers

03/05/2010 – 21:02

I just got a Sega Master System paddle controller working with the Retro Adapter. It works perfectly but there is a compatibility problem with some MAME games I had not anticipated. I tried to use it with Arkanoid. That game uses a spinner control which can rotate endlessly clockwise or anti-clockwise, unlike a paddle which [...]

By mojo | Also posted in Retro Adapter, hardware, software | Comments (0)

CA-42 as USB to RS232 converter 5V signal compatibility

26/04/2010 – 00:23

The Nokia CA-42 cable is well known as a cheap USB to RS232 converter. You can get them on eBay for about 1. One thing that was not clear from most of the articles about it is how tolerant the signalling voltage can is. According to the datasheet for the IC used in the CA-42 [...]

By mojo | Comments (0)

AVR / electronics quick reference sheet

23/04/2010 – 18:31

I am working on a quick reference chart (cheat sheet). It’s by no means done but a post over at Adafruit made me think to post it: quickref.pdf

By mojo | Also posted in avr | Comments (0)

Hori Famicom trackball protocol

22/04/2010 – 23:34

I just finished adding support for Famicom/NES trackballs to the Retro Adapter firmware. I can now use it as a mouse :-) The protocol is quite simple. Data is read from the controller in the same way as a normal gamepad. The first 8 bits are the same, followed by 4 bits of y axis [...]

By mojo | Also posted in hardware | Comments (0)
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