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The 1129 is a capacitive touch sensor and can detect a touch through
plastic, glass, or paper. We recommend a material thickness of up
to 1/2".
The sensor can work as a close proximity sensor, sensing objects at
a distance of up to 1/2¡¨ from the board in all directions without
direct contact.
On the bottom side of the Touch Sensor there is a small exposed metallic
pad. A soldered connection can be made to the pad to increase the
size and dimensions of the touchable area, such as attaching the sensor
to a metallic object or some wire.
This sensor is designed to be 3.3V compatible and can interface with
other products as an alternative. For example, the Java based Sentilla
Perk includes side ports that are compatible with 3.3V Phidget sensors
without any modifications.
This particular revision of the 1129 has a new sensing chip that recalibrates
after 45 seconds of contact (as opposed to 60 seconds on the previous
revision). Other than that, this sensor will function the same as
its predecessor.
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