WLAN Sensor network based on a Raspberry Pi and a bunch of Arduinos
Recently I noticed the ESP8266 WLAN dongle which is remarkably inexpensive and sells at a local retailer for less than 10 Euros and much less on the net. The dongle talks WLAN on one side via a built-in patch antenna and TTL-serial on the other side. I bought a dongle and hooked it up to an Arduino on a breadboard.
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