Andrew Armstrong


Finger Pulse Oximeter Blood Oxygen gadget
Want a machine to remind you to stay alive? You got it! and its cheap as chips too!
You can get them on Amazon, there is quite the variety!
USA: http://amzn.to/2p4CHpO
UK: http://amzn.to/2oHEMvj

Andrew Armstrong


Teardown Lab - Casio LC-79 Battery Conversion insanity!
What a little shite, a better that no longer exists, this is my trickiest fix to date! Watch it!
I have to admit this was a little challenge, but I am really happy with the end result, especially as its totally user serviceable! @billysastard1 im not sure I like calculators anymore!