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Terraè 2014
Raspberry Pi
Una veloce introduzione	

Stefano Morandi
Terraè 2014
Raspberry Pi è un piccolo computer
delle dimensioni di un Carta di
credito, economico (circa 30 Euro),
basato ...
Terraè 2014
Pensata come strumento didattico
per permettere di insegnare
informatica ed elettronica
sperimentando, in pien...
Terraè 2014
Invece che progettare tutto ex-novo,
si decise di utilizzare un sistema
GNU/Linux.	

!
Per minimizzare i costi...
Terraè 2014
Agosto 2011: prime Alpha	

Dicembre 2011: Beta	

Febbraio 2012: Lancio ufficiale	

!
Pochissimi esemplari andat...
Terraè 2014
• ARM 11 700MHz (1000MHz)	

•VideoCore IV GPU (OpenGL2, 1080p, H264)	

• Ram 512M	

!
• 2 USB, 1LAN	

• HDMI,V...
Terraè 2014
Lista della spesa prima di iniziare
Raspberry Pi
•Alimentatore di ottima qualità 2000mA	

• Hub USB alimentato...
Terraè 2014
• Raspbian: basata su Debian e consigliata	

• Fedora: non più in uso (?)	

• Arch: pare essere la più veloce
...
Terraè 2014
Due strumenti di sistema
Sistema
• raspi-config: lanciato
automaticamente al primo avvio,
consente di configurar...
Terraè 2014
Raspbian LXDE
Terraè 2014
Installazione minimale	

!
• LXDE per minimizzare il consumo di risorse	

• Midori come browser	

• Nessun *Of...
Terraè 2014
Progetto educativo
Terraè 2014
Progetti Interessanti
Scovati in rete
Terraè 2014
Progetti Interessanti
AirTime - Web radio completa
Terraè 2014
Progetti Interessanti
Rune Audio
Terraè 2014
Progetti Interessanti
Media center - Openelec
Terraè 2014
Progetti Interessanti
Timelapse
Terraè 2014
Progetti Interessanti
Lego Mindstorms NXT
Terraè 2014
Progetti Interessanti
Supercomputer 64 nodi
Terraè 2014
Progetti Interessanti
Palloni sonda HAB
Terraè 2014
Progetti Interessanti
Birrificio!
Terraè 2014
Progetti Interessanti
Adafriut
Terraè 2014
Consumi e Prestazioni
Tutto bello, ma quanto fa con un litro watt?
Terraè 2014
Paragoni
1999
• Intel Pentium III (29W)	

• ATI Radeon (35W)	

• 512MB Ram	

• HD 6GB	

• 350W	

• 10/15 Kg
Terraè 2014
Prestazioni
2012
• CPU 700MHz	

• GPU Integrata	

• 512MB Ram	

• 3-5 W	

• 50 grammi
Un aula di Raspberry PI
...
Terraè 2014
Link utili
• http://www.raspberrypi.org: il sito della fondazione	

• http://youtube.com/RaspberryPiTutorials	...
Terraè 2014
http://creativecommons.org/licenses/by-sa/3.0/
Stefano Morandi	

stefano.morandi@gmail.com	

@uomorando
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2014 terraè - raspberry pi - risparmio energetico

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2014 terraè - raspberry pi - risparmio energetico

  1. 1. Terraè 2014 Raspberry Pi Una veloce introduzione Stefano Morandi
  2. 2. Terraè 2014 Raspberry Pi è un piccolo computer delle dimensioni di un Carta di credito, economico (circa 30 Euro), basato su GNU/Linux. ! Nasce come progetto per l'insegnamento dell'informatica a giovani e giovanissimi... ma anche a chi non lo è più :-) Raspberry Pi
  3. 3. Terraè 2014 Pensata come strumento didattico per permettere di insegnare informatica ed elettronica sperimentando, in pieno spirito anni '80 :-) ! Inizialmente doveva solamente avviare un Interprete Python Filosofia e Storia
  4. 4. Terraè 2014 Invece che progettare tutto ex-novo, si decise di utilizzare un sistema GNU/Linux. ! Per minimizzare i costi la scelta è caduta su un SystemOnChip Broadcom (ARM11). ! Il risultato è un prodotto economico e flessibile. Filosofia e Storia
  5. 5. Terraè 2014 Agosto 2011: prime Alpha Dicembre 2011: Beta Febbraio 2012: Lancio ufficiale ! Pochissimi esemplari andati subito a ruba.Tempi di riordino di mesi. ! Ottobre 2012: Nuova versione con 512M di Ram ! Probabile evoluzione fine 2014 - inizio 2015 Filosofia e Storia
  6. 6. Terraè 2014 • ARM 11 700MHz (1000MHz) •VideoCore IV GPU (OpenGL2, 1080p, H264) • Ram 512M ! • 2 USB, 1LAN • HDMI,Video comp.,Audio stereo • GPIO • Connettore Camera CSI-2 Caratteristiche Tutto il progetto, hardware e software, è aperto System On Chip
  7. 7. Terraè 2014 Lista della spesa prima di iniziare Raspberry Pi •Alimentatore di ottima qualità 2000mA • Hub USB alimentato • Scheda SD 2GB minimo ! •Tastiera e mouse wireless • Scheda WiFi • Case su misura
  8. 8. Terraè 2014 • Raspbian: basata su Debian e consigliata • Fedora: non più in uso (?) • Arch: pare essere la più veloce Strumenti Distribuzioni Generiche • QtonPi: sviluppo Qt5 • Raspbmc / OpenELEC: Mediacenter • raspberry-asterisk:VoIP •chameleonPI: retrogaming Distribuzioni specializzate
  9. 9. Terraè 2014 Due strumenti di sistema Sistema • raspi-config: lanciato automaticamente al primo avvio, consente di configurare alcuni aspetti del sistema. (memory- split, overclock) ! • rpi-update: aggiorna il firmware. fondamentale in particolare sulle nuove versioni con 512M
  10. 10. Terraè 2014 Raspbian LXDE
  11. 11. Terraè 2014 Installazione minimale ! • LXDE per minimizzare il consumo di risorse • Midori come browser • Nessun *Office • Ma Python in tutte le salse :-) Raspbian LXDE
  12. 12. Terraè 2014 Progetto educativo
  13. 13. Terraè 2014 Progetti Interessanti Scovati in rete
  14. 14. Terraè 2014 Progetti Interessanti AirTime - Web radio completa
  15. 15. Terraè 2014 Progetti Interessanti Rune Audio
  16. 16. Terraè 2014 Progetti Interessanti Media center - Openelec
  17. 17. Terraè 2014 Progetti Interessanti Timelapse
  18. 18. Terraè 2014 Progetti Interessanti Lego Mindstorms NXT
  19. 19. Terraè 2014 Progetti Interessanti Supercomputer 64 nodi
  20. 20. Terraè 2014 Progetti Interessanti Palloni sonda HAB
  21. 21. Terraè 2014 Progetti Interessanti Birrificio!
  22. 22. Terraè 2014 Progetti Interessanti Adafriut
  23. 23. Terraè 2014 Consumi e Prestazioni Tutto bello, ma quanto fa con un litro watt?
  24. 24. Terraè 2014 Paragoni 1999 • Intel Pentium III (29W) • ATI Radeon (35W) • 512MB Ram • HD 6GB • 350W • 10/15 Kg
  25. 25. Terraè 2014 Prestazioni 2012 • CPU 700MHz • GPU Integrata • 512MB Ram • 3-5 W • 50 grammi Un aula di Raspberry PI consuma MENO di un PC
  26. 26. Terraè 2014 Link utili • http://www.raspberrypi.org: il sito della fondazione • http://youtube.com/RaspberryPiTutorials • http://chameleon.enging.com • www.flypig.co.uk/?page=list&list_id=363&list=blog • http://www.southampton.ac.uk/~sjc/raspberrypi/
  27. 27. Terraè 2014 http://creativecommons.org/licenses/by-sa/3.0/ Stefano Morandi stefano.morandi@gmail.com @uomorando

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