Hello,
I am looking for a small component or circuit to make a touch switch of an aluminum shell. Circuitry inside the shell would only be active while somebody is touching the shell. When not touched I need minimal battery drainage.
Tom Hubin snipped-for-privacy@earthlink.net
DigiKey sells a single-IC solution to this, from Quantum research group. Look at QT118 for a low-power part. They work pretty well. From a human factors point of view, you can do two interesting things:
(1) make a pushbutton that apes/felony inmates/severe abuse cannot kill
(2) make a pushbutton no one knows is there
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.