Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
How accurately does the signal strength measurement have to be? Why are you trying to measure signal strength? Do you realize that Bluetooth and wifi devices have automatic gain control snd click up power if the base station sends a notice that signal is week? Also, walls, humans, weather changes all cause changes to received signal strength. Other wifi devices cause signal strength to be boosted as well. I'll need more detailed description of your goal before I can add more...
Why not a low power accelerometer or pressure sensor. A pressure sensor can show a delta each step up a staircase, so much more sensitive in water. You can also have a small antenna wrapping up the line to make sure you maintain range when the bobber goes under.
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