The working principle of digital calipers is mysterious enough that we’d never think to dismantle, much less improve them, right? Well, think again, as [Limi DIY] retrofits the processing ...
[James Eckert] got his hands on a Freescale MPR121 capacitive touch sensor. The chip in question speaks I2C and senses up to twelve simultaneous capacitive sense electrodes; break-out boards are ...
Two complementary sensor technologies will be discussed in detail in this chapter: capacitive electric field based, and inductive (eddy current) electromagnetic field based. Figure 8.1.1: Noncontact ...
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