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|PowerMeter TSL257 and SD.fz|
ArduinoEnergyMeter ================== https://github.com/aardalo/ArduinoEnergyMeter Author ------ Øyvind Aardal License ------- http://creativecommons.org/licenses/by-nc-sa/3.0/ Hardware [SENS] --------------- Sensor-device with "light-to-voltage" converter used to count pulses on a energy meter similar to this: http://bilde.digi.no/overv%E5k+str%F8mforbruket+i+huset+fra+pc-en.jpg?o=2720923&w=698&h=0&ee=1220967635 The TSL257 is fastened over the impulse diode with "McGyver tape" to avoid stray light and to ensure secure fastening. The Arduino and Xbee is located outside the "fusebox" and a regular 4-wire telephone cable is used to connect the TSL257 to the Arduino (3 wires). Arduino Uno R3 http://arduino.cc/en/Main/ArduinoBoardUno Wireless Proto Shield http://arduino.cc/en/Main/ArduinoWirelessProtoShield DFrobots SD module http://www.dfrobot.com/index.php?route=product/product&filter_name=sd%20breakout&product_id=163 TSL257-LF http://www.taosinc.com/ProductDetails.aspx?id=73 Xbee 1mw 802.15.4 http://www.sparkfun.com/products/8665 ### Wiring of sensor module [SENS] TSL257 OUT to Arduino pin 3 SD module as described in DFR0071_Wiring.JPG Xbee mounted on Wireless Proto Shield Hardware [ENGW] --------------- Arduino Uno R3 http://arduino.cc/en/Main/ArduinoBoardUno Wireless Proto Shield http://arduino.cc/en/Main/ArduinoWirelessProtoShield Xbee 1mw 802.15.4 http://www.sparkfun.com/products/8665 Arduino Ethernet Shield http://arduino.cc/en/Main/ArduinoEthernetShield ### Wiring of xbee to ethernet gw [ENGW] Ethernet Shield and Xbee Shield stacked Hardware [ENVM] Arduino Uno R3 http://arduino.cc/en/Main/ArduinoBoardUno Arduino Wireless Proto Shield http://arduino.cc/en/Main/ArduinoWirelessProtoShield Xbee 1mw 802.15.4 http://www.sparkfun.com/products/8665 Sparkfun TMP102 breakout http://www.sparkfun.com/products/9418 Any old LDR (approx 30k) and a 1k resistor ### Wiring of Environmental Monitor (Based on http://bildr.org/2011/01/tmp102-arduino/) TMP102 Connected with CAT5 cable as follows: A5->Brown->SCL, GND->Brown/White->GND A4->Blue->SDA, 5V->Blue/White->V+ GND->Orange->ADD0, (not connected)->Orange/White->ALT LDR (not polarized) GND->Green->LDR 5V->Resistor->Green/White Between Resistor and Green/White->A3 Hardware [LAMP] --------------- Any LAMP server - could be a Synology NAS (my setup) or e.g. a Amazon EC2 server (small ... free for a year). Database ======== Data Dictionary for MySQL database "power" on localhost You must have db config file "dbconfig.php" in same dir as sql*.php: <?php $user="insert database username"; $password="insert password for user"; $database="database name"; $table="meter table name"; ?> meter ----- Table comments: power meter loggdata Column Type Null Default ----------- ----------- ------- ----------------- timestamp timestamp No CURRENT_TIMESTAMP count int(11) No kwhh float No utelys ------ Table comments: lysmåling ute Column Type Null Default ----------- ----------- ------- ----------------- timestamp timestamp No CURRENT_TIMESTAMP value float No utetemp ------- Table comments: utetemperatur Column Type Null Default ----------- ----------- ------- ----------------- timestamp timestamp No CURRENT_TIMESTAMP value float No Revision History ================ 20.03.2012 Added database description Modified environmental sensor to save data to separate tables to make life easyer for my Synology 410 - it was peaking CPU due to inefficient queries 07.03.2012 Fixed minor bugs and added support for "temp" table on MySQL server Also modified the gw to support "wellformed" GETs that will be sent directly to the LAMP server. Fixed graphs so that they grow correctly if missing datapoints. Added environmental monitor that logs light and temperature 29.02.2012 Added MySQL support. web/sql*.php is called from index.php Added Xbee to Ethernet GW 05.02.2012 Revised web pages to dynamically update without reload - still rough but closer... 01.02.2012 Added web pages in php using Google Chart. Inspired by code created by https://github.com/HNygard 01.02.2012 Initial version - experimental level - all input highly appreciated To-do ===== * Revise SENS to send "correct" syntax to the GW. Now the transform to save data to the MySQL db is done in the GW and it should be transparent. * Revise SENS to employ /utc/ time broadcast by ENGW and timestamp reports * Really need to add DHCP and DNS support for the GW to avoid hardcoded IPs * lots more... Known issues ============ * When computer sleeps and resumes, page should reload to catch up the line- graph - now it just continues multiple reads is hogging memory and cpu on my LAMP server (Synology 411j) - should only parse new stuff since last load and update graphs * If there's not enough data last 24 hours, the graph doesn't grow. The same number of data points is kept, should grow until 24 hours total is reached. (Resolved 07.03.2012)