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Orcwin t1_iv86civ wrote

Reply to comment by Skratymir in Researchers create a Drone That Can 'See Through Walls' With Wifi | At the University of Waterloo recently fixed one up with a scanning device that is the definition of invasive. by chrisdh79

I suspect the writer misunderstood, and the cost is for the custom electronics attached to it. That will add up to about that much (less if you import straight from China). Those ESP boards are dirt cheap and quite versatile.

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wezerl t1_ivbidyc wrote

I checked on Aliexpress, all parts together cost roughly 10€ including shipping. ESPCAM ~7€, ESP8266 1.25€, Voltage Regulator 1.40€

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Orcwin t1_ivbj63v wrote

There's an ESP32 on there too, but those go for around €2, so it doesn't add much.

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wezerl t1_ivbjb95 wrote

The board they used is called ESPCam on Aliexpress, it's an ESP32 with a microsd slot and a connector for a camera.

Edit: Those are a bit more expensive since they come with a Camera module

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CheeseSteak17 t1_iv89w1n wrote

Yeah, those parts alone are less than $20, so it probably includes expedited shipping.

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