Description
The Capacitive Touch Sensor (1129_1) 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 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 the 1129_0.
1129_0 Capacitive Touch Sensor comes packaged with
Comparisons with previous versions
| Feature | 1110 | 1129_0 | 1129_1 |
|---|---|---|---|
| Sensitivity (Thickness of Material) | 1/8″ | 1/2″ | 1/2″ |
| Sensor value when Touching | 0 (0V) | 1000 (5V) | 1000 (5V) |
| Recalibration Timeout | N/A | 60s | 45s |
Product Specifications of Capacitive Touch Sensor
| Sensor Properties | |
|---|---|
| Sensor Type | Touch (Capacitive) |
| Controlled By | VoltageRatio Input |
| Sensor Output Type | Ratiometric |
| Detecting Distance Max | 12.7 mm |
| Electrical Properties | |
| Current Consumption Max | 500 μA |
| Output Impedance | 1 kΩ |
| Supply Voltage Min | 1.8 V DC |
| Supply Voltage Max | 5.5 V DC |
| Physical Properties | |
| Operating Temperature Min | -40 °C |
| Operating Temperature Max | 85 °C |
