adafruit_support wrote:One possible issue would be the power requirements of the WiFi module. The Tweet-A-Watt is scavenging power from a supply just barely big enough to run the Kill-A-Watt. Sometimes it is even necessary to decrease the reporting frequency to avoid starving the Kill-A-Watt of power.
Would it be practical to power the module externally (e.g. via a wall-wart or some similar power source)?
adafruit_support wrote:Would it be practical to power the module externally (e.g. via a wall-wart or some similar power source)?
Due to the design of the Kill-A-Watt, that could actually be quite dangerous. The 'ground' in the Kill-a-watt power supply is not an earth ground & connecting external circuitry could expose potentially lethal voltages outside of the case. If you search these forums, one user made an optically isolated circuit to safely transmit serial data outside the case. From there you could connect to your WiFi module.
faludi wrote:You could also consider using something like the ConnectPort X2 as a gateway, if you want a permanent installation that connects an XBee network to the Internet. It's dedicated hardware gateway from ZigBee to Ethernet, which is a good next step from using a full computer and wouldn't require changing anything on the Tweet-a-Watt. More info here on this option:
http://www.digi.com/products/wireless-r ... x2gateways
http://store.digi.com/index.cfm?fuseact ... ct_ID=2403
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