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July 6, 2015 AT 4:00 am

Flood warning system build using FONA!

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Thanks so much to Robert for sending in the details of this project – sounds like really great work! You can read more about DAI here.

I thought you might be interested in something we did this week with the Adafruit FONA. I run something called the DAI Maker Lab, which is further described at the URL above. In short, we integrate maker tools and approaches into our work with developing countries.

I’ve been working on a sonar-based stream gauge for hydrological data monitoring and flood early warning, and this week we installed our first field prototypes at two locations in western Honduras. These units sit on a fixed platform — one is mounted on a pole and the other on a bridge — and use sonar to determine the distance of a stream, river or canal beneath it. That data is sent by FONA to a cloud-based server and sent at intervals by SMS to subscribers locally and downstream. At the request of the recipients, we integrated a simple rain gauge to collect rain data as well. We call the unit Hidrosónico.

Read more.

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Featured Adafruit Products!

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Adafruit FONA 808 – Mini Cellular GSM + GPS Breakout: Cellular + GPS tracking, all in one? Oh yes! Introducing Adafruit FONA 808 MiniGSM + GPS, an all-in-one cellular phone module with that lets you add location-tracking, voice, text, SMS and data to your project in an adorable little package. (It does not contain a drum machine, tho)

This module measures only 1.75″x1.6″ but packs a surprising amount of technology into it’s little frame. At the heart is a powerfull GSM cellular module (we use the latest SIM808) with integrated GPS. This module can do just about everything. Read more.


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