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DOMOTICA May MONTH

DOMOTICA May MONTH. Sander Claassen John Heesterbeek Ad van Berlo Marco van Nieuwenhoven MADspace community. Program. * Avond 1 - 2 mei Domoticz @ RasbperryPi * Avond 2 - 9 mei Sensors & actuators * Avond 3 - 16 mei Domotics bus-systems * Avond 4 - 23 mei Blocky & node red

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DOMOTICA May MONTH

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  1. DOMOTICA May MONTH Sander Claassen John Heesterbeek Ad van Berlo Marco van Nieuwenhoven MADspace community

  2. Program * Avond 1 - 2 mei Domoticz @ RasbperryPi * Avond 2 - 9 meiSensors & actuators * Avond 3 - 16 meiDomotics bus-systems * Avond 4 - 23 meiBlocky & node red * Avond 5 - 30 meiStrut your stuff 2

  3. Workshop 1. Introduction 2. Preparations 3. Bus-systems … 3

  4. Connectivity Connectivity – 433Mhz/ 868Mhz/ 2,4Ghz - Widely compatible (433.92Mhz) - Insecure - One-way communication: No feedback - Radio only (No ‘smart’ solution) - Affordable - No licensed radio band required 4

  5. Connectivity Connectivity – X10 & X10 RF - Open industry standard for communication between modules over mains & RF (since 1975). - X10 communicates via mains modulation - X10 RF uses open 433.92MHz (EU) (NEC IR protocol*) - Protocol is allowing up to 16*16 =256 devices - A bridge/ computer interface is required to link both mains and RF devices, or control according a schedule - Unreliable & insecure: Data-collisions will result in lost packages & data can be intercepted from outside ** 5

  6. Connectivity Connectivity – ZigBee– 868Mhz / 2,4Ghz - Open standard - Industrial applications - Philips HUE, Ikea Tradfri - Security: AES-128 encryption - Mesh network architecture - Configuration & technology is rather complex - ZigBee Green power (enables battery-less devices) 6

  7. Connectivity Connectivity – Z-Wave - Proprietary protocol (Z-Wave Alliance)* - 800-900Mhz (868.42MHz for EU) - Mesh network architecture - Protocol supports feedback by default - Secure: Z-wave S2-class security (uses AES-128)** - Expensive 7

  8. Connectivity Connectivity – WiFI - ESP8266/ESP8285, start of IoT? - 802.11 b/g/n Wi-Fi (2.4Ghz) - Security (WPA/WPA2) - High energy usage - Flexible (SDKs/firmware’s): Espressif Systems / ESP-Open-SDK NodeMCU (LUA based) / Arduino - ESPEasy - Let's Control It ESP8266 8

  9. Connectivity Connectivity – Thread - New protocol (2014), used by Nest (Google), Samsung, NXP... - Based on IEEE 802.15.4 MAC/PHY, IPv6 & LoWPAN - Compatible with ZigBee - Low power mesh network architecture - Energy efficient - Standard adapted for IP-addressable/ cloud access - Security: AES 9

  10. Connectivity Connectivity – LoRAWAN - Long Range Wide Area Network - Long range (10+ km) and highly power efficient (button cell) - Great for outdoor only, unless you own your own gateway (so not really intended for in-building domotica solutions) - Secure: (public/ private keys) - The Things Network (NL initiative going global!) 10

  11. Connectivity Connectivity – Bluetooth Low Energy (BLE) – 2.4 GHz - Compatible with all modern phones (BLE 4.0) - Low energy usage: 0.01–0.50W (vs. 1W for normal Bt.) - Low data rate (125 kbit/s – 1 Mbit/s – 2 Mbit/s) - Distance: >100 meter (vs. <100 meter with Bt.) - Security (128-bit and application layer user defined)* - P2P, Star PAN, Mesh network 11

  12. Connectivity • Connectivity – Enocean – 868 MHz • - Patented technology for home automation (certificate required) • - Ultra low energy usage/ self powered energy harvesting • - Distance: 30m indoor, 300m outdoor • - Security (Rolling code and 128 AES)* • - Enocean (as a company) now supports also ZigBee & BLE • - Low data rate (125 kbit/s) 12

  13. Connectivity Protocol benchmark *no feedback (by default) 13

  14. serial connectivity Serial wired connections 14

  15. Short distance serial connectivity Serial Connectivity – Serial Peripheral Interface (SPI) - Communication intended between chip & sensor(s) - ‘Fast’ full duplex – 8bit up to 4kb - up to 100MHz 4-wire solution - Depending on the use-case different configurations are possible, while 1 SS per device is common to avoid library-adjustment: SCLK: Serial Clock (output from master) MOSI: Master Output Slave Input, or Master Out Slave In (data output from master) MISO: Master Input Slave Output, or Master In Slave Out (data output from slave) SS: Slave Select (often active low, output from master) * Other bus-names can be used, depending on the data-usage and the bus master-/ slave configuration. 15

  16. Short distance serial connectivity Serial Connectivity – I²C - I²C (Inter-Integrated Circuit), pronounced I-squared-C- - Communication intended between chip & sensor(s) - ‘Slow’ half duplex – 10kbit/s up to 5 Mbit/s, 2-wire solution - Depending on the use-case different configurations are possible, while 1* SS’ per device is common to avoid library-adjustment: 16

  17. Workshop 17

  18. Program * Avond 1 - 2 mei Domoticz @ RasbperryPi * Avond 2 - 9 meiSensors & actuators * Avond 3 - 16 meiDomotics bus-systems * Avond 4 - 23 meiBlocky & node red * Avond 5 - 30 meiStrut your stuff 18

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