IQaudIO PI-DIGIAMP+ - User Manual

IQaudIO
User Guide v20
This document covers the installation, software configuration and
usage of IQaudIO audio cards for the Raspberry Pi A+, B+, RPi2, Pi-
Zero and Raspberry Pi 3.
If you would like to see additional information within this document please email us at
info@iqaudio.com
IQaudIO'Limited,'Company'No:'09461908'
For those who just need to know what setting should
be applied to /boot/config.txt in order to load the
IQaudIO device drivers —> Just jump to section 9

Summary

The IQaudIO Pi-DAC+ Audio Card

The IQaudIO Pi-DigiAMP+ Amplifier

The IQaudIO Pi-AMP+ Amplifier

Connecting the Pi-DAC+ to Raspberry Pi

Connecting the Pi-DigiAMP+ to Raspberry Pi

Connecting the Pi-AMP+ to the Pi-DAC+

Configuring Raspbian for IQaudIO

Update Raspbian on SD card

Update operating system for latest features and compatibility.

Configure;boot;config.txt for IQaudIO

Add device tree overlay for IQaudIO DAC support.

Configure optional AMP module mute

Set mute behaviour for AMP modules via config.txt.

Disable standard Raspberry Pi audio

Verify sound card with aplay

Check if the sound card is recognized by ALSA.

Checking IQaudIO Audio Functionality

Verify IQaudIO card in ALSA

Check if the sound card is recognized by the system.

Adjust volume using alsamixer

Control audio output levels using the alsamixer tool.

Understand volume control options

Test audio playback

Confirm audio output functionality with media player.

Advanced Troubleshooting for IQaudIO

Troubleshoot sound card detection and loading

Diagnose issues with ALSA visibility and module loading.

Controlling Pi-AMP+;Pi-DigiAMP+ Mute

Control mute via device tree overlay

Use dtoverlay parameters for mute control.

Script custom mute control

Configure automatic unmute on boot

Common Linux Distribution Configurations

Adding a Rotary Encoder

Connect and configure Rotary Encoder

Use IQ_rot utility with GPIO for volume control.

Adding an IR (Remote Control) Sensor

Connect and configure IR Sensor

Use LIRC with GPIO25 for remote control.

Saving Alsamixer Settings

Disabling On-Board Raspberry Pi Audio

Disable Raspberry Pi onboard audio

IQaudIO PI-DIGIAMP+ Specifications

General

Brand	IQaudIO
Model	PI-DIGIAMP+
Category	Sound Card
Language	English