- EOL
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Attention! The product has been discontinued. Check other products in category. |
Description
Touch keyboard, equipped with 8 buttons and the linear sensor with the goldpin connector - pitch of the 2.54 mm. It communicates via an I2C bus or digital outputs for each button separately, its external dimensions: 68 x 47 mm.
The distribution of elements on the keyboard.
Key features
- It has 8 touch keys and 1 linear sensor.
- The ability to work in a mode of 16 buttons - touch sensor provides additional 8 individual keys.
- It communicates via the I2C bus, using only two lines: SDA and SCL, or in digital form - for each of the 8 buttons, a separate output OUTx.
- The setting of the operation modes using jumpers.
- It works with the voltage from 2.4 to 5.5 V.
- It has an automatic re-calibration which activates itself when the keys are not touched for longer than 4 seconds.
- Two holes with a diameter of 3 mm ensure fixing of the keyboard.
Connection
The system communicates via the I2C bus or digital outputs for each button separately. It can operate in the mode of 8 buttons or 16 buttons. The setting of the operation modes using the jumpers.
| Pin | Description |
|---|---|
| VCC | Supply voltage from 2.4 V to 5.5 V. |
| GND | The ground of the system. |
| SDA | The data line of the I2C bus. |
| SCL | Cock line of the I2C bus. |
|
OUTx |
The digital outputs of the individual buttons KEY0 = OUT0, etc. |
Once launched, the keyboard needs about 0.5 sec to stabilize, at this time do not touch the buttons. The device can operate in two modes:
- 16 keys, exit via the I2C bus - all jumpers are connected,
- 8 keys with digital outputs OUTx - connected are two jumpers: SLWPTM and WPSCT, others are disconnected.
Specification
- Supply voltage: from 2.4 V to 5.5 V
- Number of keys: 8 + linear sensor plays the role of additional 8 buttons
- Communication: digital outputs or I2C bus
- Refresh speed: 8 Hz / 64 Hz
- Operating temperature: 40 °C to 85 °C
- Storage temperature: from 50 °C to 125 °C
- Three mounting holes with a diameter of 3 mm
- External dimensions: 68 x 47 mm
Useful links |
