DEVELOPMENT OF MEASURING SYSTEM FOR ENVIRONMENTAL CONDITIONS BASED ON ARDUINO YUN/MEGA AND WIN_CC OA George Bakas Giannis Papakrivopoulos Yorgos Tsipolitis National Technical University of Athens George Bakas National Technical University of Athens 1 13/9/2016
Introduction Arduino Sensors OPC Server WinCC_OA Conclusions George Bakas National Technical University of Athens 2 13/9/2016
The project aims to develop a low cost system, capable of measuring the environmental parameters using commercial sensors The Arduinos Mega and Yun microcontrollers were used WinCC_OA was used for data monitoring and elaboration Integration of the system into the RD51 SLow Control SYstem George Bakas National Technical University of Athens 3 13/9/2016
Microcontroller Input and Output pins Variety of Arduino Boards (Mega, YUN, etc ) Arduino Mega: 54 digital pins 16 analog pins USB port, power jack 5,5V, 3.3V GND The Arduino Mega used with Ethernet Shield Ethernet shield: allows to connect with Internet via RJ45 connection George Bakas National Technical University of Athens 4 13/9/2016
Arduino Yun: 13 digital pins 6 analog pins USB and micro USB connection WiFi and Ethernet connectivity Arduino YUN Arduino Mega George Bakas National Technical University of Athens 5 13/9/2016
Total of 5 sensors was used 1 Digital Temperature, Humidity and Pressure Sensor (BME280) 2 Digital Temperature and Pressure Sensors (BMP085, MPL3115A2) 1 Analog Pressure Sensor (MPX5700AP) 1 Digital Temperature and Humidity Sensor (DHT22) George Bakas National Technical University of Athens 6 13/9/2016
Digital Sensor: Pressure, Temperature and Humidity High Precision: Temperature ±0,5 C, Pressure ± 10 Pa, Humidity ± 2% Low Cost: ~14 Euros/ sensor Communication via I 2 C Protocol and SPI George Bakas National Technical University of Athens 7 13/9/2016
Digital Sensor: Pressure and Temperature High Precision: Pressure ±1 mbar, Temperature ± 1 0 c Communication via I 2 C protocol Here we used the Atmel AVR4201 board George Bakas National Technical University of Athens 8 13/9/2016
Digital sensor pressure and temperature High Precision: Pressure ±4 mbar, Temperature ± 1 0 c Communication via I 2 C protocol Here we used the Xtrinsic Sensor Board by Element14 George Bakas National Technical University of Athens 9 13/9/2016
Analog Pressure Sensor Accuracy: ±2,5% V FSS 5v Operating voltage Transfer function, conversion voltage to pressure George Bakas National Technical University of Athens 10 13/9/2016
Digital Temperature and Humidity Sensor (also analog connection) High Precision: Temperature: ±0,5 0 C, Humidity: ±2% Long-term stability, long transmission distance 5V Power Supply George Bakas National Technical University of Athens 11 13/9/2016
Open Platform Communication (Server/Client) OPC DA read and write data in real time Ability to use multiple Arduino boards of any type simultaneously Serial, Wifi and Ethernet Communication Communication with Arduino via OPC.h library George Bakas National Technical University of Athens 12 13/9/2016
SCADA (Supervising Control and Data Acquisition) A tool for the development of control system: Database GEDI (Graphics Editor) Control Scripts Connection with Hardware devices (OPC) JCOP (Joint Controls Project) framework George Bakas National Technical University of Athens 13 13/9/2016
DHT22 sensor used for relative measurements BME280 used at last as a main sensor for the project Pressure, Temperature, Humidity data given by 1 sensor Low cost and easy connection with Arduino (digital and I 2 C) Final 2 Configurations Arduino YUN: using WiFi connection Arduino Mega: using Ethernet connection Arduino YUN memory very small limited abilities George Bakas National Technical University of Athens 14 13/9/2016
Arduino YUN LCD Screen BME280 DHT22 George Bakas National Technical University of Athens 15 13/9/2016
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The 2 boards were designed with EAGLE by Cadsoft 2 Boards used: ArdEnvino Main Board equipped with Pins for Aruino Mega or YUN Connection Pins for LCD Screen 4 RJ45 adaptors that connect with smaller boards (sensor boards) and 1 RJ45 for external connection ArdEnvino sensor board equipped with 1 BME280 Sensor (Temperature, Pressure, Humidity) 1 DHT22 Sensor (Temperature, Humidity) 1 RJ45 Adaptor so that the sensor board is connected to the main board George Bakas National Technical University of Athens 20 13/9/2016
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A low cost system capable of monitoring the environmental parameters in several places using commercial sensors Support of two Arduino Types (Mega and YUN) Support of 2 sensors measuring pressure, temperature and humidity Completely dynamic The System has been fully integrated in the RD51 SLow Control SYstem and is available for any member of RD51 A RD51 note will be ready soon George Bakas National Technical University of Athens 31 13/9/2016
The Arduino YUN although was ideal at the beginning because of the WiFi connectivity memory problems Arduino Mega only Plans for ArdEnvino v 2.0 with Arduino Mega and WiFi Shield No cables ( WiFi connection with OPC) Memory Plans for similar system using Raspberry Pi George Bakas National Technical University of Athens 32 13/9/2016
