A cheap WiFi interface for Arduino

Today’s tutorial is a bit different: I’m going to show you how to make your ethernet shield wireless!

You can find many Wi-fi shields for Arduino: starting from the official one, Β up toΒ shieldsΒ based on Microchip’s ICs.]

A cheap WiFi interface for Arduino

Sometimes however it could be easier (and maybe cheaper!) to connect an Arduino to the Wi-fi network using your ethernet shield in conjunction with aΒ wireless router.

I found theΒ TL-WR702NΒ nano router by TP-LINK that, with a cost of about 20€ on eBay, can work also as a wireless client: in this mode the router acts like a β€œbridge” between the device connected to its ethernet port and a Wi-fi network.

The TL-WR702N router is also very small and you can power it through a micro USB connector:

 

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