Sonar would be an obvious means to determine depth of the water ahead regardless of the water opacity. Once the front end touches water, an underwater sonor depth finder could detect and display the water depth ahead.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.