Description
The module with the MPR121 system that implements 12 of the capacitive touch buttons. To the holes with the pitch of 2.54 mm, you can connect, using the wires, any conductive elements and create from them the keyboard. The device works with: metal tools, fruits, vegetables and water.
The pins are holes for soldering the popular goldpin connectors - 2.54 mm pitch - strap is included in the kit for self-soldering. MPR121 chipworks with the voltage from 2.5 V to 3.6 V.
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The product is compatible with Arduino On GitHub, you can findthe user manualalong witha libraryfor Arduino. |
Connection
| Pin | Description |
|---|---|
| VIN | Supply voltage from 2.5 V to 3.6 V |
| GND | The ground of the system. |
| SCL | Clock line of the I2C bus. |
| SDA | The data line of the I2C bus. |
| ADDR |
Change of the address of the I2C bus:
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Specification:
- Supply voltage: from 2.5 V to 3.6 V
- Communications: I2C bus
- The holes are suitable for installation of the goldpin strap, pitch of 2.54 mm (kit for self soldering)
- Dimensions: 30 x 20 x 2 mm
- Weight: 2.5 g
Useful links |
