My geeky Christmas project monitoring energy usage at my house and my parents' house using Current Cost meters, Arduino, and some Christmas lights.

1. My Christmas Project Laura Cowen

2. Arduino Open Source electronics prototyping platform www.arduino.cc

3. The electricity readings from Current Cost monitors www.currentcost.com

4. Pretty lights!

5. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

6. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

7. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

8. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

9. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

10. The Arduino and relays

11. Publish electricity readings over MQTT Subscribes to readings over MQTT and sends readings to serial port Gets readings Calculates delays Switches lights on and off My House (red) My Mum & Dad's House (green) Laptop Arduino Red Lights pub/sub broker on the Internet Green Lights

13. My little brother, Rob (@robcowen)

14. Andy Stanford-Clark (@andysc)

15. Jonathan Bond (@ma4jpb)