Cell Phone Display Oscilloscope

Written by: Alan Parekh at 3:30 pm. Filed under Complex Hacks, Electronic Hacks

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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6 Responses to “Cell Phone Display Oscilloscope”

nanar Says:
August 24th, 2009
Dead link
vic Says:
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).
Almost_There Says:
August 24th, 2009
The page is limited to 10Meg an hour or something, try again later.
sarah Says:
August 31st, 2009
It’s really very interesting project.
hubert Says:
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???
Almost_There Says:
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.