Bluetooth 4 on IOS is working well. Here are a few pictures saved from the latest version. It is now using OpenGL ES 2 for rendering so it performs much better. It also makes it easier to smooth the temperature readings overlay to look better. Still working on auto-ranging the color ranges and I need to add a few more color ranges to pick from.
|Motherboard of a running PC, the CPU heatsink works well|
|The chipset is a little hot|
|Where my hand was shows warmer for a while after|