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.

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
GPIO18 / I2Sphysical 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 · signal
GPIO19 / I2Sphysical 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 · 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.

Audio boards

52 other options

Adafruit Audio FX boards and WAV Trigger for standalone playback, DFPlayer Pro and Gravity MP3 for MCU-scripted audio, EasyVR for speech recognition, Fermion/Gravity voice recorders, and Pi I2S DAC/codec boards.

View all 52

Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger visual preview

Related groups

4 groups

Buzzers & speakers

Passive speakers from 1 W to 20 W (4–8 Ω), piezo buzzers active and passive, bone-conductor and surface transducers, and a BOSON buzzer module — all need a matching driver circuit or amplifier.

Audio · Buzzers & speakers · 23 parts

Microphones

MAX4466 and MAX9814 electret preamp breakouts for analog audio, I2S MEMS mics (ICS-43434, SPH0645LM4H, INMP441) for digital audio, PDM breakouts, ReSpeaker arrays for far-field pickup, and an LM386 sound detector.

Audio · Microphones · 18 parts

Amplifiers

MAX98357A and MAX98357 I2S class-D amps, PAM8403 and TPA2012 analog stereo amps, MAX9744 20W stereo amp, LM386 and PAM8302 mono amps, and discrete op-amp packs for signal-level work.

Audio · Audio amplifiers · 16 parts

3D printing

DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.

Tools & prototyping · 3D printing · 53 parts