crwdns2933803:010crwdne2933803:0
crwdns2933797:0Matt Footcrwdnd2933797:0crwdne2933797:0
crwdns2936045:0crwdne2936045:0 crwdns2933505:0crwdne2933505:0 Jeff Suovanen
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| [* black] A single, elegant chip resides on the touchpad. | |
| [* red] Broadcom BCM5976 Touch Controller (part of the same series of Broadcom touch controller chips used in many Apple devices) | |
| [* black] The [https://en.wikipedia.org/wiki/Strain_gauge|strain gauges], mounted on each of the four spring tabs, are used to measure the force applied to the trackpad surface. | |
| - | [* icon_note] As you press down on the trackpad, the springs |
| + | [* icon_note] As you press down on the trackpad, the springs *deform*, stretching the strain gauges and increasing their resistance. A microcontroller measures that resistance and determines the appropriate level of ~~haptic~~ Taptic feedback to deliver. |