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December 31, 2009
about 4 years ago
I’m using mine with a small solar-charged battery and have gone with a zero-power mode for the WiFly shield. I cut the VIN pin and control power to the shield via a small relay, controlled by a digital pin on the Arduino.
I just power up the WiFly when transmitting and power it off afterwards. Hopefully that option might work for your application.
Just a quick update on the wireless water sensor project linked to above; I’ve solved what was (for me) an issue with reliability of the comms.
Implementing a combination of the Arduino watchdog and using a small relay to control power to the shield has made it rock solid and very tolerant of any network or remote server issues.
I’ve updated my original blog post with more detail and the code.
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