# Project Overview This is my first pass at building myself a small, portable, decent sounding digital audio player based around a raspberry pi zero and some additional hardware along with a 3d printed case. My goal is to build myself a music player I can carry as my primary listening device that sounds good, can carry a large portion of my music library, has a simple user interface, has a more powerful backend interface, and does not cost a fortune. For this first iteration, I have selected three HATs - a display hat with d-pad and utility buttons, a digital audio board, and an uninterruptible power supply board with battery. The selections of the hardware chosen was based more on availability at the time of ordering than any in-depth research in to the pros and cons of each device amongst its peers. As it turns out, there are a few GPIO pin assignments that two or more of the HATs will be trying to use for their own devices (ha) so I'll have to bodge that wire when I get to it. The other hardware consists of a raspberry pi zero w board, a 32gb micro sd card, a micro-usb to usb-a plug cable, and a 256gb usb flash drive. The flash drive will be the music library storage and will be externally accessibly, should I want to remove it to modify the library contents on a system with a faster storage bus going for it. also, I could carry around a tiny fake pleather cassette carrying case that had a couple dozen usb flash drives in it and have literally terabytes of high quality music at my disposable. tres chic! # installation and dev log *TODO*: clean up log entries, flesh out details for readers *TODO*: add project goals, features, BoM, relevant links *TODO*: set up repo directory structure *TODO*: move all these todos into issues or something i dunno ## initial setup wrote raspbian image to sd card added empty file `/boot/ssh` added file `/boot/wpa_supplicant.conf`: ``` country=US ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="WIFI_SSID" scan_ssid=1 psk="WIFI_PASSWORD" key_mgmt=WPA-PSK } ``` booted pi logged in via ssh changed passwd `sudo raspi-config` - set up locale - disable wait for network at boot - resize filesystem in advanced reboot logged in via ssh confirmed filesystem resize `sudo apt update && sudo apt upgrade -y && sudo apt install tmux usbmount vim` `sudo vim /etc/hostname` changed to soundslab shutdown -h now ## install and configure DAC hat added hat to pi zero booted pi `sudo wget -O - script.raspiaudio.com | bash` reboot ## install and configure display hat https://www.waveshare.com/wiki/Libraries_Installation_for_RPi ## install and configure UPS hat ## install musikcube from github https://github.com/clangen/musikcube/wiki/raspberry-pi ## install UI script from gitea *TODO*: write this script! ## install startup scripts from gitea *TODO*: write these scripts! ## reboot into soundslab!