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‘Tepmachcha’ is an Open-Source Flood Early Warning System using Sonar and FONA

Built around a Seeeduino-Stalker v3, FONA 808, Maxbotix sonar, XBee, and OSH Park-available custom PCB, the project Tepmachcha is named after a mythological fish avatar and has been appropriately adopted to an open-source initiative for constructing a ‘flood early warning’ system for places like Cambodia where residents are vulnerable to water surges. It’s a great-looking project; and thanks to Rob and the DAI team for doing all this good work – the world is a better place because of it.

tepmachcha

Tepmachcha is an open source sonar stream gauge designed to give early warning of flood conditions to residents in vulnerable areas. When a flood condition is detected, Tepmachcha triggers a call with a voice recording via the RapidPro interactive voice response (IVR) system. It also records water levels at regular intervals for later analysis of flooding patterns or to inform more complex hydrological analysis.

Tepmachcha was designed at the DAI Maker Lab in collaboration with People in Need Cambodia with funding from USAID’s Development Innovations project, People in Need, and DAI. It is a fork of the Hidrosónico sonar stream gauge piloted by DAI in Honduras as part of the USAID Proparque project. It is released under the MIT License.

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