Touch pHAT
Raspberry Pi pHAT with six capacitive touch pads and indicator LEDs. Communicates over I2C using the CAP1166 touch controller.
Raspberry Pi pHAT with six capacitive touch pads and indicator LEDs. Communicates over I2C using the CAP1166 touch controller.
Raspberry Pi HAT 3.3V power rail; Pinout.xyz says Touch pHAT needs 3v3 power.
Raspberry Pi HAT 5V power rail; Pinout.xyz says Touch pHAT needs 5v power.
Raspberry Pi HAT ground reference on the 40-pin header.
I2C data line; Pinout.xyz lists communication over I2C and Raspberry Pi GPIO 2 as I2C1 SDA.
I2C clock line; Pinout.xyz lists communication over I2C and Raspberry Pi GPIO 3 as I2C1 SCL.
Touch pHAT uses the CAP1166 capacitive touch and LED driver at I2C address 0x2c according to Pinout.xyz.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 3V3 | Raspberry Pi GPIO physical pin 1 / 17 | power | Raspberry Pi HAT 3.3V power rail; Pinout.xyz says Touch pHAT needs 3v3 power. | 3.3V |
| 5V | Raspberry Pi GPIO physical pin 2 / 4 | power | Raspberry Pi HAT 5V power rail; Pinout.xyz says Touch pHAT needs 5v power. | 5V |
| GND | Raspberry Pi GPIO ground pins, including physical pin 6 | ground | Raspberry Pi HAT ground reference on the 40-pin header. | 0V |
| SDA / GPIO2 | Raspberry Pi GPIO physical pin 3 | i2c | I2C data line; Pinout.xyz lists communication over I2C and Raspberry Pi GPIO 2 as I2C1 SDA. | 3.3V logic |
| SCL / GPIO3 | Raspberry Pi GPIO physical pin 5 | i2c | I2C clock line; Pinout.xyz lists communication over I2C and Raspberry Pi GPIO 3 as I2C1 SCL. | 3.3V logic |
| CAP1166 I2C address 0x2c | On-board I2C device, not a separate external header pin | interface | Touch pHAT uses the CAP1166 capacitive touch and LED driver at I2C address 0x2c according to Pinout.xyz. | 3.3V I2C logic |
Shield
Confirm the data interface matches your host board.
Module pins: 3V3, 5V, GND, SDA / GPIO2, SCL / GPIO3. Schematik maps them to your board in the app.
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