Alþingi's Digital Signage System

Background / Needs analysis Information panels: outdated hardware and sw (win2000, ...) Juha Pekka observed strange economics outside .no

Solution Extremely affordable components Single Board Computers Aka Credit card sized Raspberry Pi & similar

Benefits Size Power requirement max 5V*1A=5W 3,5W usually Cooling N/A HD output Price $35 Enought speed for MP4 and Java apps, current JDK1.8 with JavaFX

Parts needed Raspberry Pi Power supply / USB phone charger SD memory card Cables / reuse existing

Alþingi's Digital Signage distrib Based on Raspbian (Debian) Linux Light Xwm openbox Chromium Fullscreen Cursor management Standard Remote administration/monitoring Auto Start/Recovery/Updates Packaged memory card distribution image New instance can be created in minutes

Pi hardware characteristics System-on-a-chip (SoC): Broadcom BCM2835 (CPU + GPU. SDRAM is a separate chip stacked on top) CPU: 700 MHz ARM11 ARM1176JZF-S core GPU: Broadcom VideoCore IV,OpenGL ES 2.0,OpenVG 1080p30 H.264 high-profile encode/decode Memory (SDRAM)iB 512 MiB USB 2.0 ports: 2 Video outputs: Composite video | Composite RCA, HDMI Audio outputs: TRS connector | 3.5 mm jack, HDMI Audio inputs: none, but a USB mic or sound-card could be added Onboard Storage: Secure Digital|SD / MMC / SDIO card Onboard Network: 10/100 wired Ethernet RJ45 Power ratings: 700 mA, (3.5 W) Power source: 5 V (DC) via Micro USB type B or GPIO header Size: 85.0 x 56.0 mm x 17mm Weight: 40g

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