LUCKY Portable Wireless Fish Finder for Shore Fishing

Product Information

Impressive specs - our portable sonar fish finder boasts high-level specs that help you make the most of each trip! casting far out to 165 ft / 50 m and also deep down to 165 ft / 50 m with a 40° sonar beam for ultimate accuracy and coverage. this under water fish finder also has a night fishing mode. The AA32416 IC (on the right corner) is were I choose to invest time for now: I figure out all the IC pin connection and this is were I need your help to go further. Finally, can someone explain my the basic of coil inductor (the 2 metallic square coil on the board). I google about this. They have 5 pin. 3 on one side and 2 on the other. I think the 3 pins are like potentiometer that allow to adjust the coil inductance value. The other end is fix and will act like a transformer? In any case, both coil inductor are not clearly connected to an IC. There is some transistors in between. I try to follow the signal path but my misunderstanding of the 5 pin vs the transducer input make this job much harder. I also think that the inductor on the rigth is only for reference signal since I don't see any connection with the transducer while the other one is connected to the transducer. Smart technology - use innovative, cutting-edge technology to your advantage with our fish finders & depth finders. by generating its own wi-fi, our start depth fish finder won't eat up your mobile data and automatically saves every scan with time and location for easy revisits!

LUCKY Portable Fish Finder Fish Detector Device Handheld

After seeing the power of its sonar, I can finally understand why the company calls it one of the best castable fish finders. The puny size of the device has no impact on its sonar potential. Alluding to my earlier comment about wires and space, the unit has wired and wireless modes to let it adapt to the kind of fishing scenario you have in mind. If you have the force to throw it 147ft far, things will run without any glitch. The display is another distinguishing part of this little guy. 2.8” LCD is better than other portable fish finders not only because of the size but also because of the quality of the view. Easy to set up, just charge the rechargeable battery in the screen and add batteries to the receiver and power up! DC to AC converter -- AC pulse (PWM?) - high impedance transducer -- AC echo --> AC to DC conversion --> DC voltage to depth value.

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Somewhere in the process, a timer is needed to control time between pulse and echo. Or the transducer frequency already integrate the time?

Fish Finder Spare Parts | Howes Models Fish Finder Spare Parts | Howes Models

Those are The IF amplifier input pin and IF amplifer bypass pin. (see picture of the typical schematic from the IC datasheet). The screen contains three colour tone adjustments along with tinkering options for fish icons. Meaning, you can fine-tune the unit to make it more responsive to the planned fishing type. x AA battery box with switch (This is added by ourselves as we think its the best way to power the signal box!) Ready to go - easily find where your next catch is hiding with the deeper start fish finder! the lightweight and sleek design makes for a seamless reel without any messy wires or fiddly external batteries required. ideal for shore anglers and family trips who want to get on with catching! I finded time to look into the circuit in more details. It is too big to be ruled in one post... I would like to share were I am now before I go further. your input will help understanding the next step.There are a number of Fish Finders on the market which run on WIFI connectivity. This limits your range to a maximum of 75 meters which is not enough for most lakes! Our Fish Finder has a 300 meter range which will cover almost all lakes! One reason for its multi-functioning capacity is the portable and compact size of the gadget. It is small enough to fit even in the hand of a petite female, which means you could easily accompany it on a kayak or a small watercraft without it overcrowding your little vessel. I tried to connect to the microcontroller with a serial device on the soldering pad. They are connected to RX / TX of the microcontroller, V+ and gnd. But I was not able to see or trigger any data transfer event. I used realterm and a rs232 cable "spy". Rx or tx was not blinking or doing anything.