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If you have a spare cell phone display and are handy with a microcontroller this cool Cell Phone Display Oscilloscope by Almost There could be your next project.
"Check out these impressive specifications rivaling scopes costing twice the price (about $9 MSRP)…
- Vertical fixed at 5V full screen (or 0.5V per division, if it had divisions.)
- Horizontal Sweep fixed at (approximately) 43mS full screen when over-clocked at 8MHz (or 4.3mS per imaginary division.)
- Trigger fixed at 1/2 the peak-to-peak signal (with a time-out when there is no signal.)
- Non-portable (unless you want to carry my entire workbench some place.)
- Very Affordable (about $4.50; $3.50 for the PicAxe, $1.00 for the phone, everything else I had on hand.)
- Visible in Day Light (the LCD Backlight is not connected.)
- All Solid-State (using ultra-reliable E-Z Clip Technology.)"
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August 24th, 2009
Dead link
August 24th, 2009
Probably his site has been suspened by Yahoo due to sudden high traffic, aka the “Hacked Gadgets effect”. Try the google cache : http://www.google.com/search?q=cache%3Ahttp%3A%2F%2Fwww.geocities.com%2FMinimalist_Oscilloscope_08M_Proj%2F (no pictures).
August 24th, 2009
The page is limited to 10Meg an hour or something, try again later.
August 31st, 2009
It’s really very interesting project.
September 2nd, 2009
so sorry, i could never open your link
i hoped i could rebuilt it maybe with another controller e.g. pic18f2550 which i have lying arond.
ok, so far so good, isnt there aother possibility to get the plans and software online?? maybe instructables or microsofts live skydrive???
September 3rd, 2009
Hubert;
It just loaded for me…
http://www.geocities.com/Minimalist_Oscilloscope_08M_Proj/Minimalist_Oscilloscope_08M_Project.html
Here is a link showing how to connect to a Nokia Phone…
http://www.selbing.com/_jakob/electronics/nokia.htm
Good Luck!
Ken_S.