Neumi

Hey there! Awesome progress! Your LUCKY fishfinder definitely looks different. I noticed only two inductors this time, and it seems like there’s an extra WiFi or Bluetooth chip—possibly an ESPRESSIF...

That sounds great! I really like the display. It looks like you're using an HC-SR04 ultrasonic sensor or something similar. These sensors provide a digital output rather than an analog...

Thats interesting. That is a 100% new PCB design compared to my board. But it actually looks a bit cleaner now with fewer parts. Might be easier to reverse engineer......

Awesome! I'm currently improving the Arduino TUSS4470. I just tested the 200kHz with another transducer. At higher drive voltages (around 20V VDRV), it works quite well now. Maybe we need...

Thats good. Looking forward. PCB manufacturing and assembly have become cheap in the past few years. For me, it's around 60€ for 5 boards, including shipping and taxes. Usually, it's...

Aweseome! I love the paneling! Have you ordered at JLCPCB or an LCSC company? Unfortunately the TUSS4470 are almost sold out now :D The voltage level might be a bit...

Looking good! Is it possible that the transducer is flipped? they have polarity. The python plot looks a bit like it amplifies a lot of noise. How clean is the...