gadget_cdrom

Requirements

• Requires Raspberry Pi Zero (W)
• Waveshare 1.3inch OLED HAT (https://www.waveshare.com/wiki/1.3inch_OLED_HAT).
• Raspbian buster

Description

• gadget_cdrom converts your Raspberry Pi to virtual usb cdrom.
• https://video.ploud.fr/videos/watch/6d0b1014-bb39-4714-a984-15a24a9ac58e

Usage

• you can switch between HDD mode and virtual cdrom mode.
• HDD mode - in that mode your Raspberry Pi is basically USB flash drive connected to your computer.
• CD mode - in that mode you select some iso you uploaded to Raspberry Pi in HDD mode and after that rpi start pretending it's a cdrom.

Keys

• Key1 - Insert iso to the virtual cdrom
• Key2 - Remove iso from virtual cdrom
• Key3 - Change mode
• Joystick Down - next iso
• Joystick Up - previous iso

Installation

Install dependecies

sudo apt install -y p7zip-full python3-rpi.gpio python3-smbus python3-spidev python3-numpy python3-pil fonts-dejavu ntfs-3g

Prepare storage

sudo dd status=progress if=/dev/zero of=/iso.img bs=1M count=24000 #24000 = 24000MB
sudo losetup /dev/loop0 /iso.img
sudo mkfs.ntfs -Q /dev/loop0
sudo losetup -d /dev/loop0
sudo sync
sudo mkdir /iso

Load modules after boot

• Add dtoverlay=dwc2 to /boot/config.txt
• Add dwc2 to /etc/modules
• Enable SPI

sudo raspi-config
Interfacing Options
SPI
Yes

Install gadget_cdrom

• Clone gadget_cdrom

cd /opt
sudo git clone https://github.com/tjmnmk/gadget_cdrom.git

• Enable systemd service:

sudo cp /opt/gadget_cdrom/gadget_cdrom.service /etc/systemd/system/gadget_cdrom.service
sudo systemctl enable gadget_cdrom.service

• reboot rpi

sudo reboot