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I am looking for a freelancer with experience in electronics design and prototyping to build a programmable ultrasonic cat repellent device. The device should meet the following specifications: Supply: 220V / 50Hz AC input Output Frequency: Adjustable 25–40 kHz band, selectable fixed frequency or sweep mode Amplitude Control: Knob‑adjustable output amplitude (0–100%) Timing Control: ON/OFF cycle settable in seconds, or continuous ON Display: 4‑Line digital display showing live frequency, amplitude % etc. Waveform Quality: Clean sine output, no harmonics (inaudible to humans) Interface: Rotary knobs for Start Freq, Stop Freq, Amplitude, ON Time, OFF Time Cost Target: Low‑cost build using easily available components in India Deliverables: Circuit schematic and PCB layout Component list with vendor sources (India) Assembled prototype in enclosure Documentation for operation Budget: ₹4,000 – ₹5,500 (negotiable based on scope and quality) Timeline: 2–3 weeks for prototype delivery Location: India Skills Required: Electronics circuit design (Arduino, DDS, MOSFET drivers) PCB layout and assembly Experience with ultrasonic transducers Ability to source components locally ([login to view URL], Sunrom, element14, Mouser India, Amazon India)
Project ID: 40615394
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**Dear Client,** Your programmable ultrasonic cat repellent project aligns well with my expertise in **electronics design, embedded systems, PCB development, and power electronics**. I can design and build a low-cost prototype featuring: * Adjustable **25–40 kHz** ultrasonic output with fixed and sweep modes. * Knob-controlled frequency, amplitude, ON/OFF timing, and continuous operation. * Clean waveform generation with an efficient driver for the ultrasonic transducer. * 4-line LCD/OLED displaying frequency, amplitude, operating mode, and timer status. * Compact PCB, enclosure, and locally sourced components from **Robu, Sunrom, element14, Mouser India**, or equivalent suppliers. I have **15+ years of R&D experience** developing custom embedded products using **Arduino, STM32, ESP32, DDS waveform generation, MOSFET drivers, and analog signal conditioning**. Deliverables include the complete schematic, PCB layout, BOM with Indian vendor links, well-commented firmware, assembled prototype, and operation documentation. **Please check my profile** for embedded hardware, PCB design, power electronics, and prototype development projects. **Best regards,** **Subhash Suman** Electronics Design | Arduino | STM32 | PCB Design | Power Electronics | Prototype Development | 15+ Years Experience
₹10,000 INR in 14 days
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13 freelancers are bidding on average ₹5,385 INR for this job

Hi there, I read your offer carefully and understand that you need a programmable ultrasonic cat repellent prototype with 220V AC input, adjustable 25–40 kHz sine output, amplitude control, sweep/fixed modes, ON/OFF timing, 4-line display, knobs, PCB, enclosure, and India-sourceable components. I can support the circuit design, DDS/Arduino-based frequency generation, ultrasonic driver stage, amplitude control, timing logic, display interface, PCB layout, BOM with Indian supplier options, assembly guidance, and operating documentation. My background in mechatronics, embedded systems, analog/power electronics, PCB design, ultrasonic transducer driving, and prototype development fits this project well. I would also design the output to be adjustable and safe for a humane deterrent application. Just send me a message and we can discuss the transducer choice, enclosure, and prototype scope. Best regards, Samuel Tshibangu
₹5,500 INR in 1 day
6.5
6.5

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
₹4,500 INR in 7 days
5.3
5.3

Hi, I can design and prototype your programmable ultrasonic cat repellent device with adjustable frequency, sweep/fixed mode, amplitude control, timing control, digital display, PCB layout, BOM, enclosure support, and operation documentation. The best solution is to first finalize the frequency range, transducer type, output power, enclosure size, display module, and safety requirements. I’ll then design a low-cost controller-based circuit using Arduino/MCU, DDS or PWM-based waveform generation, driver stage, isolated AC-to-DC power supply, controls, and display interface. I’m comfortable with Arduino/embedded systems, ultrasonic transducers, MOSFET/driver circuits, analog/digital electronics, PCB layout, signal generation, component sourcing in India, prototyping, and documentation. Deliverables include: * Circuit schematic * PCB layout * Adjustable 25–40 kHz output * Fixed and sweep mode * Amplitude knob control * ON/OFF timing control * 4-line display interface * BOM with India vendor sources * Prototype assembly guidance * Enclosure and operation notes I’ll focus on a safe, low-cost, practical prototype using easily available components, with mains input properly isolated for user safety. Best regards Ankit
₹5,000 INR in 1 day
3.7
3.7

Hi there, It's my pleasure to write to you that I can assist you in completing this project on PCB design for ultrasonic cat repellent device. I am an electrical engineer having 5+ years of experience in Hardware design. I have worked on various kind of PCB design. I have designed high speed PCB, high power PCB, RF based PCB, mixed signal PCB. I will provide you design with optimized component selection that will according to technical specification and best in cost. As deliverables I will provide you with: Circuit schematic and PCB layout Component list with vendor sources (India) Assembled prototype in enclosure Documentation for operation Kindly initiate chat let's discuss details of the project. Regards,
₹4,000 INR in 7 days
0.4
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Hello, Your project is a great match for my experience in embedded systems, electronics design, PCB development, and firmware programming. I can design a complete programmable ultrasonic cat repellent with adjustable frequency, amplitude control, sweep mode, timing functions, and a user-friendly interface with a digital display. The solution will include the complete circuit schematic, PCB layout, firmware for the controller, component sourcing recommendations from Indian suppliers, and clear documentation. My focus is on creating a reliable, low-cost, and modular design that is easy to maintain and enhance in the future. Before starting, I'd like to discuss the ultrasonic transducer specifications and the expected output power to ensure the amplifier and waveform generation meet your requirements for a clean ultrasonic signal. I look forward to discussing the project and delivering a high-quality prototype within your timeline.
₹4,000 INR in 7 days
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Hello, I have experience in electronics design, Arduino, and PCB layout, and I can build the programmable ultrasonic cat repellent you described. My approach: - Use a microcontroller + DDS module to generate clean 25-40kHz sine waves, inaudible to humans - Add 4-line LCD to display frequency, amplitude, ON/OFF time - Rotary knobs for easy control of Start Freq, Stop Freq, Amplitude, ON Time, OFF Time - PCB design with low-cost components easily available in India - Deliver: Schematic, PCB, BOM with Indian vendors, assembled prototype in enclosure, and user manual I can deliver a working prototype in 2-3 weeks as requested. My bid: $55 USD. Let’s discuss any specific requirements for the enclosure or power supply. Best regards, Juuinor
₹4,750 INR in 21 days
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Hello, I understand you need a complete programmable ultrasonic cat repellent prototype, including circuit design, PCB development, firmware control, enclosure-ready assembly, and documentation for a low-cost production approach. My approach would be: • Define the hardware architecture based on your requirements, including MCU control, DDS/signal generation, ultrasonic driver stage, power section, and user interface. • Design the circuit for adjustable 25–40 kHz frequency control, fixed/sweep modes, amplitude adjustment, timing control, and live parameter display. • Develop the PCB layout with attention to signal quality, noise reduction, safety considerations for 220V input, and cost-effective component selection. • Prepare the BOM with easily available suppliers in India and optimize the design for prototype assembly. • Test frequency accuracy, waveform stability, output control, display operation, and overall device performance. • Provide schematic files, PCB files, source code, documentation, and prototype handover instructions. I have experience with embedded systems, Arduino-based designs, PCB layout, circuit development, signal processing, and electronics prototyping. My focus is not only building a working prototype, but creating a reliable and affordable design that can be improved for future manufacturing.
₹4,000 INR in 3 days
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Hello, I understand you need a programmable ultrasonic cat repellent prototype with adjustable frequency, amplitude control, timing settings, display feedback, and a complete PCB-based design. I will: • Design the circuit architecture including MCU control, DDS/signal generation, ultrasonic driver, power section, and user controls. • Develop frequency control from 25–40 kHz with fixed and sweep modes. • Implement amplitude adjustment, ON/OFF timing control, rotary inputs, and live parameter display. • Create the schematic, PCB layout, and BOM using cost-effective components available in India. • Test frequency stability, waveform quality, output control, and overall operation. • Provide PCB files, source code, component list, and operation documentation. I have experience with embedded systems, Arduino-based electronics, PCB design, circuit development, signal processing, and hardware prototyping. My goal is to build a reliable, low-cost prototype that can be tested easily and improved for future production. I would be happy to discuss the ultrasonic transducer, output power requirements, and preferred controller platform before starting.
₹4,750 INR in 2 days
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Hello, I am an Electronics and Embedded Systems Engineer with experience in circuit design, PCB development, embedded firmware, and hardware prototyping. I am interested in developing your programmable ultrasonic device. I can design the complete system with an adjustable 25–40 kHz ultrasonic output, fixed and sweep frequency modes, amplitude control, programmable ON/OFF timing, 4-line digital display, rotary knob interface, and enclosure integration. I will also provide the circuit schematic, PCB layout, BOM with Indian vendor sources, assembled prototype, and complete documentation. The design will focus on reliability, clean waveform generation, and the use of readily available components in India while meeting your functional requirements. Estimated timeline: 2–3 weeks. Project cost: ₹10,000 (including design, firmware, PCB, prototype assembly, and documentation; component costs can be discussed based on the final BOM). I look forward to discussing your requirements and delivering a reliable, high-quality prototype. I'll also know local electronics supplier in Mumbai Best regards, Shubham Mumbai Maharashtra
₹10,000 INR in 15 days
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Navi Mumbai, India
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