DIY projects with Ruby & Pi

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DIY projects with Ruby & Pi Helio Cola @hacrods

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hac-rods.me Hi, I am Helio Cola! • ~17 years developing SW • ~7 years since I found happiness • ~6 years full time happiness • I go by @hacrods on the internet…

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Agenda • What is available • Buy, Install, Setup • Development Environment • Sensors & Gadgets & Projects

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What is available

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What is available • RaspberryPi: https://www.raspberrypi.org/ • Parallella: https://www.parallella.org/

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What is available: RaspberryPi • RaspberryPi: https://www.raspberrypi.org/ Raspberry Pi 0 Raspberry Pi 1 Model A+ Raspberry Pi 2 Model B Raspberry Pi 3 Model B Raspberry Pi 0 W(ireless)

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Pi 0 Pi 1 A+ Pi 2 B Pi 3 B

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Pi Zero vs Quarter

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Differences between the Pi’ CPU RAM Display USB Others Pi 0 1Ghz, single-core 512MB CSI (v1.2 only) and Mini HDMI USB On-The- Go ports Pi 0 W 1Ghz, single-core 512MB CSI (v1.2 only) and Mini HDMI USB On-The- Go ports 802.11n Pi 1 A+ 700Mhz 512MB HDMI One USB 2.0 Port No Ethernet Low power 0.5W & 1W Pi 2 B 900MHz quad-core 1GB CSI, DSI, Full HDMI 4 USB 2.0 ports Ethernet Pi 3 B 1.2GHz 64-bit quad-core 1GB CSI, DSI, Full HDMI 4 USB ports Ethernet, 802.11n, Bluetooth & BLE

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Differences between the Pi’ Price Dimensions GPIO Pi 0 $5 65mm long x 30mm wide x 5mm thick HAT-compatible 40-pin header Pi 0 W $10 65mm long x 30mm wide x 5mm thick HAT-compatible 40-pin header Pi 1 A+ $24.95 65mm x 56mm 40 GPIO pins Pi 2 B $39.95 85.60mm × 56.5mm 40 GPIO pins Pi 3 B $39.95 86.9mm x 58.5mm x 19.1mm 40 GPIO pins

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What is available: Parallella • Parallella: https://www.parallella.org/ Parallella Microserver (P1600) Parallella Desktop (P1601) Parallella Embedded (P1602)

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The differences CPU Price RAM HDMI USB GPIO Microserver 18 cores 667 MHz (max 1 GHz) $99 1GB RAM No 1 port No Desktop 18 cores 667 MHz (max 1 GHz) $149 1GB RAM Yes 1 port 24 ports Embedded 18 cores 667 MHz (max 1 GHz) $264.94 1GB RAM Yes 1 port 48 ports

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Buy, Install, Setup

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Where to buy • If you are near Pimoroni • If you are near Element14 • If you are near Adafruit • If you are near “Amazon” • Otherwise: ﬁnd Micro Center near you

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What to buy • Depend of what you are trying to do • The basics: Pi3 starter kit: board, case, power supply, heatsink, and micro SDHC Pi0 (W) starter kit: board, 2 micro USB to USB adaptor/cable, 4 port USB hub, mini to full HDMI adaptor, and micro SDHC • Extras: Camera, sensors, 7” Touch screen display, Blinkt!, etc

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Pi3 Starter kit Reference: Amazon, CanaKit Raspberry Pi 3

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Pi0 Starter kit Reference: Amazon, Raspberry Pi Zero W Complete Starter Kit

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Sensors Reference: Amazon, KOOKYE 16 in 1 Smart Home Sensor Modules Kit

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7” Touch Screen display https://www.element14.com/community/docs/DOC-78156/l/raspberry-pi-7- touchscreen-display

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Camera

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Blinkt! https://shop.pimoroni.com/products/blinkt

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Pi 3: Install, Setup • If your machine is Windows/Linux/Mac: https://developer.ubuntu.com/core/get-started/ installation-medias • If your machine is Linux: https://ubuntu-mate.org/raspberry-pi/

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Pi 3: OS Download • Ubuntu Core, Ubuntu Mate, Windows 10 IoT Core Core: https://developer.ubuntu.com/core/get-started/ raspberry-pi-2-3 Mate: https://ubuntu-mate.org/download/ Windows (still on my TODO list): http://ms- iot.github.io/content/en-US/Downloads.htm

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Pi 3: Installation on Mac • More or less these were my steps: 1. Download the image, un-archive, insert SD card 2. Run:

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Pi 3: Setup • First boot: it will take longer • It may automatically extend the ﬁle system (Core) • Or you will have to do it manually (Mate) • Follow the instructions on the display • Conﬁgure your network • And an administrator account

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Pi 3: On a TV

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Pi 3: On a touch screen

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Development Environment

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(My) Development Environment • UbuntuMate OS: a GUI on top an Ubuntu distribution • ruby 2.1.5p273 (2014-11-13) [arm-linux-gnueabihf] • rvm & ruby 2.5 • Text Editor: vi or Mac/Atom/Git/RaspberryPi • Firefox: more than enough • A monitor or TV, keyboard and mouse

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7” Touch Screen display

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7” Touch Screen display

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7” Touch Screen display

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Sensors

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PIR Motion Sensor

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Smoke and Combustible Gas

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Buzzer

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Carbon Monoxide

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Digital touch

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Flame

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Vibration

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Temperature and Humidity

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Sound

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Water level

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Motion Sensor App

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Motion Sensor App • My Hello World for RaspberryPi 3 • Detect “movement” • Do something: • Call an API • Sound an alarm • Turn on the lights and play a music • Turn on the Camera & record it until no more presence • Reporte event + video

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Motion Sensor App Pi3 Rails App Local at your house, AWS, Heroku, etc Pi0W Front door Pi0W Back door Pi0W Game room

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Motion Sensor App What you will need: • Raspberry Pi3 starter kit • Camera • PIR motion sensor • 7” touch screen (optional)

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Motion Sensor App • Ruby as usual: rvm, ruby, rack, rails, rails-api, postgres, etc. Data model

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Motion Sensor App • CRUD admin app & api to allow events to come in

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PIR Motion Sensor

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PIR Motion Sensor Reference: https://cdn-learn.adafruit.com/downloads/pdf/pir-passive-infrared-proximity-motion-sensor.pdf Passive infrared Pyroelectric IR motion

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Monitoring the sensor Reference: https://github.com/jwhitehorn/pi_piper

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(My) Home monitoring system

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(My) Home monitoring system experiment • Left it running on my house for 2 months • A friend came by regularly to check the house • And walked through the sensor • And I monitored everything from the other side of the globe

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Time-Lapse Camera

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Time-Lapse Camera • Take pictures periodically • Blink lights Reference: https://projects.raspberrypi.org/en/projects/raspberry-pi-zero-time-lapse-cam

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Time-Lapse Camera What you will need: • Raspberry Pi0 starter kit • GPIO Hammer Header (solderless) • Blinkt (optional) • Camera • Reused cardboard box & sunglass • 5V Power pack

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Time-Lapse Camera

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Time-Lapse Camera

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Time-Lapse Camera

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Time-Lapse Camera DEMO TIME!!!

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References http://rayhightower.com/ https://www.raspberrypi.org/ https://www.parallella.org/ https://developer.ubuntu.com/core/get-started/installation-medias https://ubuntu-mate.org/raspberry-pi/ https://developer.ubuntu.com/core/get-started/raspberry-pi-2-3 https://ubuntu-mate.org/download/ http://ms-iot.github.io/content/en-US/Downloads.htm https://www.element14.com/community/docs/DOC-78156/l/raspberry-pi-7- touchscreen-display https://cdn-learn.adafruit.com/downloads/pdf/pir-passive-infrared-proximity- motion-sensor.pdf https://codingyoda.com/Raspberry-Pi-Email-PIR-Sensor.php https://github.com/jwhitehorn/pi_piper https://projects.raspberrypi.org/en/projects/raspberry-pi-zero-time-lapse-cam http://bit.ly/k8s-rpi

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Thank you! http://bit.ly/k8s-rpi Helio Cola @hacrods