Lab 1 – Warm-up with Raspberry Pi - Pitt

Lab 1 – Warm-up with Raspberry Pi

ECE 1175 Embedded System Design

ECE 1175 – Lab 1

Raspberry Pi Basics Hardware & software How to start

Lab 1 Task – warm-up with Pi A brief introduction

If you missed the pick-up time on Monday (8/24), please contact TA (Kai Huang: [email protected]) to schedule another time slot for pick-up.

ECE 1175 – Lab 1

Take care of your boards Avoid touching the circuits on the boards Keep boards dry and clean Make good use of the clear case

Raspberry Pi

Classic “embedded” computer Single board computer Size of a credit card

ECE 1160/2160 Embedded Systems Design 4

Raspberry Pi

Raspberry Pi

Microprocessor (Raspberry Pi 3B)• Broadcom [email protected] GHz• 64-bit quad-core ARM Cortex-A53

• Same as … Dual-core VideoCore 4 multimedia

co-processor• “Small GPU”

1 GB DDR2 Memory

Connectivity 802.11 b/g/n WiFi + Bluetooth 4.1


LG V10 Sony Xperia X

Raspberry Pi

Input/Output OS: Raspbian

Raspberry Pi

Power Supply Use either power adapter or USB charger Provided power adapter is recommended If want to use your own USB charger

• Micro USB• Make sure 5V@2A(or > 2A)• Be aware of undervoltage issues!


Raspberry Pi


HDMI Port HDMI port enables you to send audio/video

data from Raspberry Pi to your monitor so thatyou can see what is happening inside your little computer.

Raspberry Pi

USB 2.0 Port X 4

4 USB ports could be used as connector for your keyboard and mouse when you are operating in Raspberry Pi.


Raspberry Pi

Ethernet Cable Port

Use Ethernet cable to connect Raspberry Pi to the Internet. Or you can use the built-in WiFi for connection.


Raspberry Pi

General Purpose Input/Output (GPIO): It is a generic pin on Raspberry Pi board

and controlled by user at run time for input or output purpose. Raspberry Pi has 40 pins on board.


Operating System


Operating system (OS) It is a program Manage computer software and hardware resources Provide service to users

Operating System – Linux

Linux One type of Operating system (Traditionally) using command line to provide service to users


Linux Kernel Terminal

Shell


Terminal Text/command line input/output environment

Shell A software interpreting command line

Linux Kernel Access to hardware resource

Hardware Process data and managed by Linux kernel


Terminal

Shell

Kernel

User

Hardware



Compile Instruction:1. gcc world.c -o world2. ./world

Operating System – Raspbian Raspbian A free operating system based on Linux kernel Optimized for the Raspberry Pi hardware 35,000+ packages

• communication package• sound package• graphics package• Complete list: http://www.raspberryconnect.com/raspbian-packages-list• *install package by command: apt/apt-get install <package name>

Pre-installed software • Python, GCC, …• Mathematica, Scratch• other programming software.


Debian

http://www.raspberryconnect.com/raspbian-packages-list

Operating System – Raspbian

Scratch Scratch is a programming language with blocks, not code,

for interactive stories, games and animations


Operating System – Raspbian Mathematica mathematical symbolic computation program or computer algebra program


Expand mathematical expression

Output 200 digits of Pi

Operating System – Raspbian Programming software Python 2 -> Python 3


Operating System – Raspbian Programming software BlueJ: Java


Operating System – Other choices

Risc OS Unix-like OS Incompatible with Linux software

OpenELEC/RaspBMC Entertainment system Design for media play center

Arch Linux/Ubuntu Mate Linux experience required Not for beginner

Window 10 IoT Desktop and desktop is not included


Raspberry Pi for Labs

1. Clear case 2. Power adapter 3. Sense HAT 4. Micro-SD card and its adapter 5. Raspberry Pi Board 6. HDMI/VGA Cable


Micro SD Card Store operating system and user data Typically 8 GB is enough for lab tasks Pre-installed with NOOBS

NOOBS is an easy operating system installer which includes Raspbian. It also provides a selection of alternative operating systems.


Some things to mention The SD card on your hand might not be a brand new one (It’s OK)

• It has been processed by previous students.• The operating system is already installed.

If you want to format your SD card and reinstall your operating system • You will need the adapter.• There are plenty of tutorials online and it will be a good practice.• E.g., https://youtu.be/fe9A6AYXIx0

https://youtu.be/fe9A6AYXIx0

Raspberry Pi Board Two USB ports, one for mouse and the other for keyboard Power supply slot HDMI port Micro SD card slot

Raspberry Pi Board

Attention Please always insert SD card first. Raspberry Pi will start to boot up once the power supply is on. When you shut down the system, do not remove the power supply

until the status LED on the board stops blinking.

Status LED

Raspbian

Switch your monitor’s input source to VGA

Raspbian

Installation and boot-up runtime screenshot and keep waiting

Raspbian


Raspbian


Raspbian

Only appear if you choose NOOBS, and select raspbian for boot-up

Raspbian


Raspbian


Raspbian

Raspbian Desktop

Raspbian

WiFi Connection The lab (1223 Benedum) WiFi (802.11g)

• Name: Embedded System Class• Password: embedded1234

WiFi standard supported by Raspberry Pi 3• 802.11b/g/n (2.4 GHz) supported• 802.11ac (5 GHz) NOT supported• Please check the standard when choosing other WiFi connections

Terminal

Terminal

Lab 1 Task

Warm-up with Raspberry Pi Get familiar with some basic commands of Linux. Use pre-installed packages to modify the configurations and

behaviors of the system. Please refer to lab1.htm posted on the course website for details.

If your equipment is malfunctioning or you have any confusion about the lab assignments, please contact TA (Kai Huang: [email protected]) for help.

http://www.pitt.edu/%7Eweigao/ece1175/fall2020/lab1.htm

Documents

Lab 1 – Warm-up with Raspberry Pi - Pitt