How to turn three broken LED lamps into two working ones…
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Fixing broken LED light bulbs
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Author Archives: Johan von Konow
Laser cut gingerbread house
This year we created a miniature gingerbread house using a 50W laser engraver.
Happy holidays!
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Low cost microscope powered by USB
You can get a decent SMD stereo microscope for just 60$!
I added external power so I don’t need to change the batteries.
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Nanino – the DIY friendly Arduino
A minimalistic single sided Arduino compatible development board that is easy to make.
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Bringing a 12 year old Roland MDX-20 up to date
How to add: USB connection, FTDI drivers and a new postprocessor to a low cost CNC mill (Roland MDX-15 / MDX-20). Continue reading
Generic routine for receiving short asynchronous transmissions
D1 detects short asynchronous transmissions. It can learn new, or identify stored commands.
• Compact
• No hardware USART
• Generic (works with all standards).
Use D1 to add remote control functions to your project!
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Miniature USB to serial PCB
Build a small FT232 USB to serial adapter that fits directly in the USB port.
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Ultimate PIC16F628/627 breakout board
A miniature breakout board for rapid development of microprocessor projects.
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Repairing a broken AirPort Express
How to fix an AirPort Express Base Station that does not power up.
I added a 5V power adapter and a 3.3V LDO instead of the broken power unit. Continue reading
Homemade iPad augmented reality cars
How to build an AppMATes compatible cars from PEZ dispensers using:
• PEZ dispenser (cars2 edition),
• Knife, sandpaper,
• Quick glue,
• Double sided adhesive,
• Conductive foam,
• Conductive film,
• Conductive glue
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