2022-01-28, 01:30 PM
(2022-01-28, 12:03 PM)PaddyB Wrote: Thanks for the link, is your arduino code on github?
I've just been given a tronic df48 hand held fish finder to play with, if I can get depth data then everything else should be quite easy, I'll hopefully have a waterproof box with a Pi Zero 2 & arduino/esp somehow getting the data then creating waypoints with depth is a click away ?
Sorry, I don't have a Github. But the code is very simple, just like using the sensor in air: Send a pulse by pulling the signal pin HIGH, measure the time until the echo pin goes HIGH, and then divide the time in microseconds by 13.477 (for water) to get the distance in cm.
Your fishfinder looks very much like mine, but it seems you will have to cut the cable if you want to use the transducer with Arduino. But you can just get a normal waterproof sensor for the Arduino which seems to work just like the fishfinders transducer so far (at least to me after the tests I did).