I once had a laptop whose trackpad acted erratic, scrolling left to right in a quick hyper-active fashion. The manufacturer determined the battery, around 4 years old at the time, was slightly expanding, and causing pressure upon the trackpad. The diagnostics included a screen with a grid-like box for analyzing trackpad depressions. Sure enough there was a straight left-to-right line that formed in the diagnostic tool, mimicking mouse swipes that weren’t happening; the battery was definitely to blame. But it never dawned on me what the trackpad circuit board itself looked like – and so when my friend Darius recently posted this picture it suddenly all made sense!
If I ever have to scrap another laptop (my current Lenovos are still chugging along after 5+ years in operation) I’ll be sure to salvage the trackpad circuit – that thing is a beauty!
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — SoftBank Invests $300 Million in WeWork
Wearables — Foam feathers
Electronics — Have the need for speed? This diode might be right for you
Biohacking — Daptly to Release a Commercial Smart Mirror
No comments yet.
Sorry, the comment form is closed at this time.