This document provides information about the Raspberry Pi Zero, including its specifications, connectors, and typical uses. It notes that the Pi Zero has a 1GHz processor, 512MB of RAM, GPIO pins, mini HDMI port, CSI camera connector, and a USB On-The-Go port that can operate as either a host or device port. The document also discusses using the Pi Zero as a standalone computer or embedded device, and describes some "hats" or add-ons that can expand its functionality for applications like IoT. Finally, it provides examples of configuring the Pi Zero to operate as a USB gadget for functions like virtual serial communication.

1. Raspberry Pi Zero

2. Processor Memory Connectors Cost
Raspberry
Pi 1 Model
B+ v1.2
(2014)
BCM2835
700MHz
512MB GPIO male
Ethernet
4xUSB
HDMI
Audio
CSI
DSI
$25
Raspberry
Pi Zero v1.3
(2015)
BCM2835
1GHz
512MB GPIO unpop
1xUSB-OTG
MiniHDMI
CSI
Images courtesy of http://www.raspberrypi.org

3. Courtesy of http://www.reichelt.de/

4. Use as a
computer
Use as a
embedded
device

5. To use as a computer
USB
Display
Connectivity

6. Hat ?
Stackable USB Hub
Image courtesy of http://www.makerspot.com

7. Hat
IoT Hat
Image courtesy of http://www.redbear.cc

8. More Hat
https://hackaday.io/project/8678-rpi-wifi

9. To use as a embedded device
3.3V 115200bps 8N1

10. What’s New in Raspberry Pi Zero

11. USB On-the-Go
● The USB port on Pi Zero can be either Host or Device
BCM2835
LAN 9514
USB
Hub
LAN
USB
Port
USB
Port
Pi B+ Pi Zero
BCM2835
USB
Port

12. Raspberry Pi Zero USB Gadget
● https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-gadget/overview
●
http://blog.gbaman.info/?p=699
●
As of 2016-05-27 the Debian Jessie image already contains USB gadget mode
support
 Mass storage and Serial (g_acm_ms)
 Ethernet and Serial (g_cdc)
 2 from Ethernet, Mass storage and Serial (g_multi)
 Webcam (g_webcam)
 Printer (g_printer)
 Gadget tester (g_zero)
 Serial (g_serial)
 Ethernet (g_ether)
 Mass storage (g_mass_storage)
 MIDI (g_midi)
 Audio (g_audio)
 Keyboard/Mouse (g_hid)

13. A Demo of g_serial
● Add dtoverlay=dwc2 to /boot/config.txt
● Add dwc to /etc/modules
● Add g_serial to /etc/modules or load with modprobe
● Program can now access data from Virtual Serial from
/dev/ttyGS0
● Imaging: $5 POWERFUL Arduino
● Enable console on ttyGS0
sudo systemctl enable getty@ttyGS0.service

14. A Demo of PiShift (g_acm_ms)
● https://github.com/tomhartley/piShift
● Uses g_acm_ms combo device

15. ZeroBorg PiGRRL-zero
ZOE the Zero