DIY Underwater Sonar That Sees What Your Eyes Can’t

In this video, I’m building a fully functional underwater sonar system for scuba diving. Visibility in our waters is often less than 3 meters, but with this DIY dive sonar, we can detect obstacles and structures up to 20 meters away using 200 kHz sound waves. The project is based on my open-source sonar platform OpenEcho, which I’ve adapted for underwater use with a 200 kHz transducer, a Raspberry Pi, and custom CNC-machined waterproof housing. I walk through the process from hardware design, electronics assembly, a bit of firmware development, and software, to real-world underwater testing. All hardware and software are open-source, and you can build your own using the links below! Got questions or ideas? Drop them in the comments! Like the video if you learned something new, and don’t forget to subscribe for more DIY sonar, underwater tech, and open hardware builds. JLCPCB provides easy, affordable, and reliable PCB & PCBA solutions. Check them out here and register to get $70 New customer coupons: https://jlcpcb.com/?from=Neumi #Sonar #UnderwaterTech #OpenSourceHardware #DIYProject #RaspberryPi #CNC #Electronics #DiveGear #Makers #DIY More info about my projects: Discord:   / discord   LinkedIn:   / neumi   GitHub: https://github.com/Neumi Sponsors: JLCPCB: https://jlcpcb.com/?from=Neumi Kogger: https://kogger.tech/ GitHub: https://github.com/sponsors/Neumi If you want to support my work and projects, please check out my Amazon wish list! I put a few SONAR transducers on that list. I want to build the new PCB around these LOWRANCE transducers. To test them, I might need to buy a few of them. If you want to support this project, feel free to sponsor them :) I'd highly appreciate it. https://www.amazon.de/hz/wishlist/ls/...