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.
The 1129_1B has a sensing chip that recalibrates after 45 seconds of contact (as opposed to 60 seconds on the 1129_0). Other than that, this sensor will function the same as the 1129_0. Please refer to the table below to see the differences:
Comparisons with previous versions
|Feature||1110||1129_0||1129_1 or 1129_1B|
|Sensitivity (Thickness of Material)||1/8"||1/2"||1/2"|
|Sensor value (voltage) when Touching||0 (0V)||1000 (5V)||1000 (5V)|
|Sensor Type||Touch (Capacitive)|
|Controlled By||VoltageRatio Input|
|Sensor Output Type||Ratiometric|
|Detecting Distance Max||12.7 mm|
|Current Consumption Max||500 μA|
|Output Impedance||1 kΩ|
|Supply Voltage Min||1.8 V DC|
|Supply Voltage Max||5.5 V DC|
|Operating Temperature Min||-40 °C|
|Operating Temperature Max||85 °C|
|Part. No. :||1129_1B|
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