Simple Electronic Fishing Lure Circuit

The construction of an electrical fishing lure is shown in this article.

It creates sound that might draw fish with a tiny buzzer.

Despite being easy to construct it has the ability to be highly successful.

Warning: Fishing laws differ from place to place.

When using electronic lures for fishing make sure it is legal.

What is a Electronic Fishing Lure Circuit:

Electronic fishing lure circuits often uses components like transistors, resistors, inductors and piezo transducers.

A piezo transducer plays a key role in converting electrical impulses into mechanical vibrations that are then transmitted through water.

To attract larger fish the circuit generates vibrations that resemble the motions of prey that include insects or fishes.

Below is a description of the building process and how the circuits work:

Circuit Working:

Parts List:

Put the resistor R1 in place to bias the transistor T1.

This important step ensures that the transistor in the circuit operates as designed.

Add resistor R2 as the feedback interrupter an important component that anytime transistor T1 conducts allows the piezo transducer to produce a negative feedback pulse.

The oscillation of the entire circuit is greatly affected by this feedback mechanism.

A 27 mm standard piezo element should be used as the circuits main component.

Make sure it is protected by covering it with a layer of non conductive material.

At the fishing area the constructed piezo is immersed in water to create an atmosphere for the electronic fishing lure.

A high frequency oscillation is produced across the circuit when the biasing of transistor T1 is upset by the negative feedback from the piezo.

The inductor value and piezo element material requirements create the correct frequency.

When submerged in water the piezo produces electrical vibrations that travel great distances through the water.

By imitating the motion of a fly this buzzing effect increases the lure movement and draws fish to the electrical pulses.

Formula:

Below are the formula for Frequency Calculation:

f = 1 / 2π√LC

where,

• f represents the resonant frequency of the circuit measured in hertz Hz.
• L represents the inductance of the circuit measured in henrys H.
• C indicates the capacitance of the circuit measured in farads F.
• π (pi) is a mathematical constant with a value of approximately 3.14159.
• √ is a symbol represents the square root.

How to Build:

To create an electronic fishing lure using a piezo buzzer circuit follow the steps below.

Get the components ready:

• Assemble all necessary parts and check what is needed.
• Make sure the piezo transducer is the normal 27 mm size.

Put Transistor T1 in place:

• Put the transistor T1 onto the printed circuit board.
• Follow the instructions carefully then connect the leads to the proper positions on the PCB using jumper wires.

Attach the resistor R1:

• To bias the transistor add resistor R1 into the circuit.
• Connect R1s two ends to the PCBs positive supply and the transistors base etc.

Presenting Resistor R2:

• As a feedback interrupter add resistor R2 to the circuit.
• Connect one end to the PCBs negative supply and the other end to the junction of the transistors collector and inductor.

Put the Inductor L in:

• Put the circuit with the inductor.
• Wire one end of the inductor to the transistors emitter and the other end to the junction of R2 and the transistors collector.

Get the piezo transducer ready:

• Use an inert substance to cover the 27 mm standard piezo element.
• By doing this electrical interference is avoided and insulation is guaranteed.

Submerge in Water:

• At the fishing spot immerse the covered piezo transducer in the water.
• To ensure proper electrical vibration transmission through the water make sure the piezo is completely immersed in water.

Give the circuit power:

• Connect the battery or other power supply to the proper PCB spots.
• Make that the circuit is powered on and that the polarity is right.

Examine the oscillation:

• Keep an eye out for the circuits oscillation which is indicated by the buzzing piezo.
• A high frequency oscillation occurs when the biasing of the transistor is upset by the negative feedback produced by the piezo.

If required fine tune:

• If necessary change component values to get the performance and frequency response you want.

Conclusion:

It is important to remember that the impact of various electronic fishing lures is different and that their use are restricted by local fishing laws.

The kind of fishing environment and the kind of fish being targeted can also affect how effectively these lures perform.

The development of electronic fishing lures is a result of advances in technology that provide fishermen with new tools to experiment with in their search for the perfect catch.

References:

Fishing lure