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MPR121 3x4 Capacitive Touch Keypad Module
$1.8100
In stock
SKU
KPD-01-019
Volume discounts:
- +50 4 % $1.7300
- +100 7 % $1.6900
- +300 8 % $1.6600
- +500 10 % $1.6200
- +1000 13 % $1.5800
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CAP1188 8-Key Capacitive Touch Sensor Breakout Previous 
The MPR121 3x4 Capacitive Touch Keypad Module is a touch keypad module with 12 pads and I2C output. It is designed as a capacitive keypad with a layout similar to a standard 3x4 keypad. The module uses the MPR121 chip and provides SDA, SCL, and power pins along with the keypad pins. It also includes four mounting holes for installation. This module outputs 3.3V logic and uses a 3.3V input voltage.
Features of MPR121 3x4 Capacitive Touch Keypad Module
- 12 touch pads
- Capacitive touch input
- I2C communication
- MPR121 chip
- 4 mounting holes
- 3.3V logic output
Specifications of MPR121 3x4 Capacitive Touch Keypad Module
- Input voltage: 3.3V
- Interface: I2C
- Chip: MPR121
- Dimensions: 78x48 mm
How to Use MPR121 3x4 Capacitive Touch Keypad Module
- Connect the power pins to a 3.3V supply.
- Wire the SDA and SCL pins to an I2C controller.
- Use the touch pads as keypad inputs in your project.
More Info
- The module is a capacitive keypad.
- The keypad has 12 electrode points.
| Interface Type | I2C |
|---|---|
| Operating Voltage (V) | 3.3V |
| Operating Temp (°C) | -40 to 85 |
| Dimensions (mm) | 78x48 |
| Interface Category | Keypad |
| Keys Count | 12 |
| Output Type | I2C |
| Channels | 12-channel |
| Chipset | MPR121 |
| Voltage Range | 3.3V |
| Protocols | I2C |
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