Pimoroni Speaker pHAT for Raspberry Pi Zero
Raspberry Pi Zero pHAT combining an I2S DAC, mono Class D amplifier, a tiny 8 Ω / 2 W speaker, and a 10-LED bar graph VU meter display.
Pinout
- 5Vphysical pins 2 and 4
Raspberry Pi 5V header power used by the Speaker pHAT; Pinout.xyz lists 5v Power on physical pins 2 and 4 for the Speaker pHAT header.
Type · PowerVoltage · 5V from Raspberry Pi header - GNDRaspberry Pi header ground pins
Ground reference from the Raspberry Pi header; Pinout.xyz lists multiple Ground pins on the Speaker pHAT header.
Type · GroundVoltage · 0V reference - GPIO18I2Sphysical pin 12
I2S audio signal on Raspberry Pi GPIO18 used by the Speaker pHAT; Pinout.xyz labels physical pin 12 as GPIO 18 (I2S).
Type · GPIO, Signal - GPIO19I2Sphysical pin 35
I2S audio signal on Raspberry Pi GPIO19 used by the Speaker pHAT; Pinout.xyz labels physical pin 35 as GPIO 19 (I2S).
Type · GPIO, Signal - GPIO21I2Sphysical pin 40
I2S audio signal on Raspberry Pi GPIO21 used by the Speaker pHAT; Pinout.xyz labels physical pin 40 as GPIO 21 (I2S).
Type · GPIO, Signal
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 5V | physical pins 2 and 4 | Power | Raspberry Pi 5V header power used by the Speaker pHAT; Pinout.xyz lists 5v Power on physical pins 2 and 4 for the Speaker pHAT header. | 5V from Raspberry Pi header |
| GND | Raspberry Pi header ground pins | Ground | Ground reference from the Raspberry Pi header; Pinout.xyz lists multiple Ground pins on the Speaker pHAT header. | 0V reference |
| GPIO18I2S | physical pin 12 | GPIO, Signal | I2S audio signal on Raspberry Pi GPIO18 used by the Speaker pHAT; Pinout.xyz labels physical pin 12 as GPIO 18 (I2S). | |
| GPIO19I2S | physical pin 35 | GPIO, Signal | I2S audio signal on Raspberry Pi GPIO19 used by the Speaker pHAT; Pinout.xyz labels physical pin 35 as GPIO 19 (I2S). | |
| GPIO21I2S | physical pin 40 | GPIO, Signal | I2S audio signal on Raspberry Pi GPIO21 used by the Speaker pHAT; Pinout.xyz labels physical pin 40 as GPIO 21 (I2S). |
Pin details
5 connections- 5Vphysical pins 2 and 4
Raspberry Pi 5V header power used by the Speaker pHAT; Pinout.xyz lists 5v Power on physical pins 2 and 4 for the Speaker pHAT header.
PowerVoltage · 5V from Raspberry Pi header - GNDRaspberry Pi header ground pins
Ground reference from the Raspberry Pi header; Pinout.xyz lists multiple Ground pins on the Speaker pHAT header.
GroundVoltage · 0V reference - GPIO18I2Sphysical pin 12
I2S audio signal on Raspberry Pi GPIO18 used by the Speaker pHAT; Pinout.xyz labels physical pin 12 as GPIO 18 (I2S).
GPIO, Signal - GPIO19I2Sphysical pin 35
I2S audio signal on Raspberry Pi GPIO19 used by the Speaker pHAT; Pinout.xyz labels physical pin 35 as GPIO 19 (I2S).
GPIO, Signal - GPIO21I2Sphysical pin 40
I2S audio signal on Raspberry Pi GPIO21 used by the Speaker pHAT; Pinout.xyz labels physical pin 40 as GPIO 21 (I2S).
GPIO, Signal
Start wiring
UART · I2S · Module
Verify supply voltage and logic levels before powering up.
Module pins: 5V, GND, GPIO18 / I2S, GPIO19 / I2S, GPIO21 / I2S. Schematik maps them to your board in the app.
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