♪♫ So, to-night I'm gonna party like it's 1999 ♫♪
It's been over ten years since the dreamcast came out, and since I'd recently dug-out my old dc, I thought I'd take a few pics of it to show-off some of my earlier mods.
20 March 2010
My Darling Dreamcast
♪♫ Two thousand zero zero party over oops.... out of time ♫♪
♪♫ So, to-night I'm gonna party like it's 1999 ♫♪
It's been over ten years since the dreamcast came out, and since I'd recently dug-out my old dc, I thought I'd take a few pics of it to show-off some of my earlier mods.
There she is, in all her beautiful blue glory, a launch-day PAL DC with a two-tone translucent blue shell and a few extra goodies inside.
♪♫ So, to-night I'm gonna party like it's 1999 ♫♪
It's been over ten years since the dreamcast came out, and since I'd recently dug-out my old dc, I thought I'd take a few pics of it to show-off some of my earlier mods.
10 March 2010
PSOne screen led-mod
The PSOne screen is great, a major drawback though, is it's high power consumption. Out of the box, it draws about 750mA at 7.5V, almost all of that is to power the backlight.
In this post I'll describe how I saved power with a custom led backlight.
2 March 2010
How to build a circuit on Veroboard
There are a few ways to build an electronic circuit, one of the easiest is to use Veroboard.
Veroboard or stripboard is a prototyping board for laying out circuits. It has rows of parallel copper strips with holes spaced at 0.1” to accept most through-hole components.
In this post, I'll try to explain how to build a simple circuit on Veroboard.
In this post, I'll try to explain how to build a simple circuit on Veroboard.
18 February 2010
Low-battery indicator circuit
I designed this little circuit to show a battery’s status.
It lights an led to show the battery is OK, and will change to show another colour when the battery’s low.
The transistors can be any npn-type, and the leds can be any colour (in the diagram, green=ok, red=low)
The operating voltage range is ~3v-12v, and by adjusting the resistor values it will work beyond that.
The voltage the low led comes on at, is set by the potentiometer.
It lights an led to show the battery is OK, and will change to show another colour when the battery’s low.
The operating voltage range is ~3v-12v, and by adjusting the resistor values it will work beyond that.
The voltage the low led comes on at, is set by the potentiometer.
12 February 2010
Momentary latching circuit
Here is a little circuit I made that will allow a momentary switch to turn on/off a load.
Q1 can be any NPN transistor, and Q2 is any N-channel MOSFET capable of handling the current being switched. It should be fine with a range of ~5-12V but I've only tested it at 7.4V.
It somewhat mimics the action of a newer console's power button. I made it so I could switch a relatively large amount of power with a small tactile switch, press for on, press again for off.
Q1 can be any NPN transistor, and Q2 is any N-channel MOSFET capable of handling the current being switched. It should be fine with a range of ~5-12V but I've only tested it at 7.4V.
It somewhat mimics the action of a newer console's power button. I made it so I could switch a relatively large amount of power with a small tactile switch, press for on, press again for off.
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