Tours of Raspberry Pi, Arduino, and IoT
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Microcontrollers No operating system, usually single core running Mhz speeds Handles multiprocessing by interrupts Resilient Usually 3.3 or 5V and usually around 1 Amp (or both 3.3 and 5.0V) Usually basic if any Internet connection Open and global innovation Uses serial, IC2, and other well understood hardware communication Huge version exist for large project (i.e. Arduino Mega, drones, quadcopter versions). Applications Motor control, server control, robots, weather stations Examples Arduino, Mico:bit, M0 based controllers, AdaFruit Feather, Tensy, Beaglebon
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Tours of Raspberry Pi, Arduino, and IoT
- 1. freeknowledgemission-list@meetup.com Raspberry Pi 3, Arduino, IoT https://www.raspberrypi.org https://www.arduino.cc https://www.sparkfun.com/products/13711 https://www.adafruit.com/product/2471 6/30/2018 1
- 2. freeknowledgemission-list@meetup.com Microcontrollers No operating system, usually single core running Mhz speeds Handles multiprocessing by interrupts Resilient Usually 3.3 or 5V and usually around 1 Amp (or both 3.3 and 5.0V) Usually basic if any Internet connection Open and global innovation Uses serial, IC2, and other well understood hardware communication Huge version exist for large project (i.e. Arduino Mega, drones, quadcopter versions). Applications Motor control, server control, robots, weather stations Examples Arduino, Mico:bit, M0 based controllers, AdaFruit Feather, Tensy, Beaglebon 6/30/2018 2
- 3. freeknowledgemission-list@meetup.com IOT No operating system, usually a core and specialized hardware Often cannot handle multiprocessing (some work arounds such a “yield”) Lower power 3.3 V usually 250M Amp or less Often programmed with microcontroller tools Sparkfun’s ESP8266 Thing is programmed using Arduino IDE Have built access to Internet and can consume of generate wifi Low cost Incomplete hardware as minimized for cost, power, and footprint Low cost microcomputer overlap this area (i.e. Raspberry Pi zero) with operating systems Examples Certain models of Arduino overlap this area with built in Internet access and low power ESP8266 based single boards such as supplied by Sparkfun and AdaFruit. 6/30/2018 3
- 4. freeknowledgemission-list@meetup.com Microcomputer Boots to an operating system Handles multiprocessing Windows (Azure), Linux, Android usually. Can have multiple hardware (Linux and Aruino on same board) Usually high power and heat issues (2-4 Amp, usually needs display) High cost once additional hardware (keyboard, screens, power sources) included Linux while open may not be new version or special version. Linux has to have drivers compiled into core code Linux distributions require updates or fall behind May be sensitive to voltage issues. Raspberry Pi handles not more than 1.8V Multi-code running in Ghz speeds, some supercomputer speed and crazy extras like FPGA Add on boards usually available for robot use, mining (BitCoin), Examples Raspberry Pi 3, Atom, Edison, various unique hybrid boards, Hummingbird (Android) 6/30/2018 4
- 5. freeknowledgemission-list@meetup.com Uses for microcontrollers Hardware connections that talk serial, I2C, SPI Multiple devices used together 5V and 3.3 V applications under 4A of power. Robots, drones, monitor processes Cos play, wearables, GPS IOT Specific hardware measuring stuff Connection to Internet Logging data Microcomputer Multi-tasking Operating system device driver needed Complex control of resources 6/30/2018 5
- 7. freeknowledgemission-list@meetup.com IOT Demo using Sparkfun ESP8266 Thing Control LED on device with Internet Via connecting to device by WIFI User browser to connect to 192.168.4.1 Programmed by Arduino IDE and 3.3V FTDI Basic via USB. Demo code from Sparkfun Use Raspberry Pi to connect https://learn.sparkfun.com/tutorials/esp8266-thing-hookup-guide/example-sketch-ap-web- server 6/30/2018 7
- 8. freeknowledgemission-list@meetup.com Arduino GPS sold by https://www.sparkfun.com/products/14198 STEM version of Arduino (Kickstarter last year) Demo using Arduino IDE to monitor serial output from GPS Examples: Old Arduino with pullable chip, Gemma, Tinsey 6/30/2018 8
- 9. freeknowledgemission-list@meetup.com Raspberry Pi 3C OS Rasberrian on SD Card Must download OS and create SD based OS Time set from Internet (no clock!) Tiny video so no real video card Used SmartiPi Touchscreen https://www.sparkfun.com/products/14059 Has Wifi and Linux. Handout RP 3B 6/30/2018 9
- 10. freeknowledgemission-list@meetup.com Robot Demo Feather 32U4 https://www.adafruit.com/product/2771 Python and M0 Can use Arduino IDE to program M0 core based 8 Mhz 3.3 V @ 4.8 grams! Used Crickit Seesaw add-on Board 5V (+/- .5V, must regulate outside) May connect servo, motor, speakers, touch, and NeoPixel Handles about 4A total so can’t run all servos, motors, and lights all at same time Demo Running Servo Using demo code https://learn.adafruit.com/adafruit-crickit-creative-robotic- interactive-construction-kit/arduino-servos-2 Cricket sold out, just released! 6/30/2018 10
- 12. freeknowledgemission-list@meetup.com New hardware Metro M4 AdaFruit M4 based Arduino! 120Mgz! NeoPixie! Full of add-ons built in! Still in beta. XLR8 https://www.aloriumtech.com/xlr8/ FPGA on an Arduino! $75.00 Raspberry Pi 3 C https://www.raspberrypi.org 1.4GHz 64-bit quad-core processor Dual-band wireless LAN Bluetooth 4.2/BLE WIFI is fast! Browsers finally fast enough 6/30/2018 12