| | 1 | [[Image(lightVera.png, align=right, width=300px)]] |
| | 2 | = Energy Meter (Pulse Sensor) = |
| | 3 | |
| | 4 | == Software == |
| | 5 | You can download the Arduino sketch [[http://code.mios.com/git_public/mios/arduino-sensor.git/tree/HEAD:/VeraArduino/Arduino/libraries/Vera/examples/EnergyMeterPulseSensor?js=1|here]].\\ |
| | 6 | |
| | 7 | This sensor counts pulses from a house meter and converts it into watt/kwh. There are a few parameters that needs to be tuned before everything works. On your meter it is usually specified how many pulses/kwh. Set PULSE_FACTOR to this value. You can also set SEND_FREQUENCY (how often you want the sensor to report values). Default is each 20 seconds. |
| | 8 | |
| | 9 | If you want the vera device to show your current meeter value. Update Variable1 under the vera devices advanced tab to your meters current kwh-value * PULSE_FACTOR. |
| | 10 | |
| | 11 | The sensor sketch has two modes: |
| | 12 | |
| | 13 | '''SLEEP_MODE = true''' |
| | 14 | |
| | 15 | Use this if you run the sensor on battery. In this mode the sensor will report KWH but cannot report any Watt-value. This is because when sensor sleeps it will lose track of time and therefore it is impossible to calculate a correct Watt-value. |
| | 16 | |
| | 17 | '''SLEEP_MODE = false''' |
| | 18 | |
| | 19 | In this mode the sensor will always be awake. Watt value is also reported to Vera. |
| | 20 | |
| | 21 | == Wire things up == |
| | 22 | |
| | 23 | Follow the instructions in ConnectingRadioModule to connect radio module. |
| | 24 | |
| | 25 | Connect the digital DO (Digital Out) of the light sensor to digital pin 3 of the Arduino board. |
| | 26 | Connect VCC to +5V of the Arduino board. GND to GND. |
| | 27 | |
| | 28 | == Hardware - Purchase guide == |
| | 29 | |
| | 30 | To build this sensor you'll need one arduino + radio specified in the base kit found here:\\ |
| | 31 | http://code.mios.com/trac/mios_arduino-sensor/wiki/WikiStart#Buyingguide\\ |
| | 32 | |
| | 33 | With the following additional parts:\\ |
| | 34 | 1x [[http://www.dpbolvw.net/click-7319170-10881559?url=http%3A%2F%2Fwww.aliexpress.com%2Fitem%2F3-3-5V-input-LM393-light-Sensor-Module-for-Arduino-with-DO-AO-output-w-FREE%2F976122480.html|Light sensor]]\\ |
| | 35 | |
| | 36 | TOTAL SENSOR PRICE: $7.6 (arduino + radio) + $2.8 (light sensor) = '''$10.4''' |
| | 37 | |
| | 38 | [[Image(light.jpg, width=500px)]] |
