ESP8266 Community Forum

- Tue Sep 15, 2015 12:34 pm #29089 There's a new Kickstarter up for a water flow measuring meter - but.. it is $299. I think that is a ridiculous price for this. I suspect an enterprising hacker can clone this for $10.
https://www.kickstarter.com/projects/82 ... ater-meter

Can this ultrasonic range finder for the Arduino do the trick? $1.80
http://www.aliexpress.com/item/HC-SR04- ... 4,201409_1

Plus a $2 ESP-12. And a $1 wall wart. Still $5 left over.

Theory on how they work.
http://www.engineeringtoolbox.com/ultra ... d_495.html

So when can I read about this amazing ESP hack on hack-a-day?

Where I get my modules

- Tue Sep 15, 2015 4:34 pm #29111 +1! Really interesting, would make a great project, definitely looks doable.

[RichardS]

- Tue Sep 15, 2015 4:45 pm #29114 +1 always up for a challenge!

Richard.

Surplus parts
https://epartsconnect.com

Live realtime stock market prediction website. https://www.stocksignalslive.com my latest creation. Uses AI and machine learning.

New site featuring ESP8266 and ESP32 projects. tutorials, and news.
http://EverythingESP.com

ESP8266.com Founder and Administrator
The Mind Factory (get more from your 3D printer)

Home of the ESP8266, ESP8285, and ESP32 microcontrollers....

- Wed Sep 16, 2015 1:32 am #29132 Here's their prototype: http://www.ebay.com/itm/TUF-2000M-TS-2- ... 2326ece9de

And here's a reference design: https://www.maximintegrated.com/en/desi ... ml/tb_tab0

Another app note: http://www.ti.com/lit/pdf/snia020

Maybe they are using these in production: http://www.aliexpress.com/item/1MHZ-20m ... 17010.html

These look interesting: http://www.alibaba.com/product-detail/1 ... 03283.html