= Relay Actuator With Pushbutton  =

This example show how to control an relay from Vera and also locally with a push button connected to the Arduino. Local status changes of the relay state will be transmitted to Vera.

== Software ==
You can download the Arduino sketch [[http://code.mios.com/git_public/mios/arduino-sensor.git/tree/HEAD:/VeraArduino/Arduino/libraries/Vera/examples/RelayWithButtonActuator?js=1|here]]\\

== Wire things up ==

Follow the instructions in ConnectingRadioModule to connect radio module.
[[Image(digital_button.jpg, width=250px, align=right)]]
Connect the IN1 of relay to digital pin 4 of Arduino board.\\
Connect Relay VCC to +5V of the Arduino board. GND to GND.\\
Connect push button between +5V and digital pin 3 with a 10k pull down resistor to GND (see image).

== Hardware - Purchase guide ==

To build this sensor you'll need one arduino + radio specified in the base kit found here:\\
http://code.mios.com/trac/mios_arduino-sensor/wiki/WikiStart#Buyingguide\\

With the following additional parts:\\
1x [[http://www.jdoqocy.com/click-7319170-10881559?url=http%3A%2F%2Fwww.aliexpress.com%2Fitem%2F5V-One-1-Channel-Relay-Module-Board-Shield-For-PIC-AVR-DSP-ARM-MCU-For-Arduino%2F1209452041.html|Single Relay Module]]\\

1x [[http://www.dpbolvw.net/click-7319170-10881559?url=http%3A%2F%2Fwww.aliexpress.com%2Fitem%2FELEWIND-12mm-Dome-head-momentary-push-button-switch-PM121B-10-N%2F1342120632.html|Push button]]\\


TOTAL SENSOR PRICE: $7.6 (arduino + radio) + $1.6 (relay module) + $1.75 (button) = '''$11'''

[[Image(relay.JPG)]]