Hacked Gadgets Forum

August 23, 2009

Cell Phone Display Oscilloscope

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.)"