sierrasecho | BC | sea oddity - Hi gang! This m...
Hi gang! This may be a bit of a stretch, but does anyone know a DIY system to read an old transducer and spit it out to something readable by signal k? An esp32 setup perhaps? This isn't for my boat but my dad's, so few details on specific models. Basically, a DIY Raymarine ITC-5.
8 Replies
its doable, the Raymarine wind instrument has been done using an ESP32, I am sure the same thing is relatively easy with the paddle wheel speed sensor - which sensor are you wanting to convert?
Not sure what the old transducer is. Don't care much about the paddlewheel, it's just the depth he wants. "Many" of the airmar Transducers have two wires and a shield for depth, and 4 plus shield for temp/speed (well the ones with the double insulated cables which look a bit like standard household cable, but aren't)
OK, so you are thinking of installing a new Airmar depth transducer and then outputting it to ESP32?
sorry, I mean SignalK?
No. There is an unknown transducer already in the boat. The boat is not networked, and it appears the stand-alone display has failed (but unsure). I am hoping someone has esp32 code which can read the old transducer , much like these units can do: https://www.raymarine.com/en-us/our-products/marine-instruments/instrument-accessories/itc-5-transducer-converter
if it is the old Analogue version the ultrasonic driver IC is in the gauge, but it can be done using a TDC1000 and ESP32 but likely difficult and I am not sure if anyone has done it already
Drats. Figured it wouldn't be something too straightforward alas.
We used this one to digitise our old NASA sounder and Sumlog paddlewheel
https://actisense.com/products/dst-2-nmea-0183-digital-transducer/
Unknown User•2mo ago
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