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I need a compact circuit board designed to function like a pond ionizer, primarily to control algae growth. Requirements: - Input: 24V AC or DC - Output: 12V DC at approximately 0.1A to copper probes - Indicator: Green LED to light up when probes are submerged, completing the circuit Ideal Skills and Experience: - Experience in circuit design and PCB layout - Familiarity with low voltage power supplies - Knowledge of water submersion and environmental resilience (high humidity, etc.) - Proficiency in soldering and working with electronic components
Project ID: 40359693
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Hi, KINDLY READ THROUGH MY PROPOSAL I will deliver a compact, production-ready PCB that converts 24V AC/DC input to a safe 12V 0.1A output for copper probes, with automatic green LED indication when probes are submerged. MY APPROACH ✅ Efficient 24V to 12V step-down with current limiting to 0.1A ✅ Simple conductivity-based submersion detection to switch LED and output ✅ Humidity-resistant layout with proper isolation and conformal-coating readiness ✅ Minimal component count for low cost and high reliability ✅ Clean SMT design optimised for automated assembly RELEVANT PROJECTS - Pond ionizer PCB with submersion sensing and 0.1A copper electrode drive for algae control DELIVERABLES - Full schematic + compact PCB layout files - BOM with manufacturer part numbers - Assembly and testing instructions QUESTIONS 1. Pure 24V AC, DC, or both acceptable? 2. Preferred probe connector (JST, screw terminal…)? 3. Any maximum PCB size? 4. Target timeline? Ready to start immediately
$300 USD in 2 days
6.4
6.4
25 freelancers are bidding on average $502 USD for this job

Hello, As an electrical engineer with ample experience in designing and implementing intricate circuit boards, your project is right up my alley. I understand the importance of adhering to specific voltage requirements and the need for precise output for your pond ionizer. My skills in circuit design, electrical engineering, embedded systems, and PCB layout will ensure that the 24V AC or DC input to 12V DC output conversion is both reliable and efficient. Not only do I have the technical knowledge to design such a board, but my experience also extends to practical considerations. Your project calls for an understanding of water submersion and resilience to high humidity environments - areas where our team at Live Experts has demonstrated proficiency time and again. In addition, I am well-versed with essential tools such as EAGLE, Linux, Unix, and PCBs to effectively implement the necessary components for your ionizer. Finally, offering excellent customer satisfaction has always been my prime objective on every project we undertake. Your trust in us is paramount, and we'll always strive to live up to it - from concept to delivery. Contact me now to get started on bringing your vision of a pond ionizer circuit board meticulously to life! Thanks!
$750 USD in 5 days
7.4
7.4

I'm electronic circuits designing engineer and having expertise in PCB designs altium kiCad orcad and electric circuit design. I have done master in emebbeed electronics engineering. Hire me once and see the expected results of production ready made PCB ready to order Gerber BOM pick and place. Regards Engr Muhammad Usman
$500 USD in 7 days
6.8
6.8

Hi,I am an experienced electrical engineer specializing in low-voltage analog and embedded circuit design, and I can develop a compact, reliable PCB for your pond ionizer application. I will design an efficient input stage supporting both 24V AC/DC, followed by a stable 12V DC regulated output with controlled current delivery to the copper probes. The design will include a robust sensing mechanism to detect probe submersion and trigger a green LED indicator, ensuring reliable operation in real-world conditions. I have experience designing electronics for high-humidity and outdoor environments, incorporating proper protection such as conformal coating considerations, corrosion-resistant components, and safe isolation practices. You will receive a complete schematic, PCB layout, and production-ready files, along with recommendations for durable components and assembly. I can also support prototyping and testing to ensure stable and safe long-term operation. Best Regard. Leonid Y.
$500 USD in 2 days
5.6
5.6

Hi, I am a PCB and embedded systems engineer with 10+ years of experience designing low-voltage control boards, power conversion circuits, and environmentally protected electronics. I have completed 80+ PCB projects, including water-level sensors, corrosion-resistant outdoor control boards, and isolated AC/DC power systems, with successful production runs up to 1,000+ units. I have strong experience with compact PCB layout, DC regulation, probe sensing circuits, LED indication logic, conformal coating, and moisture-resistant enclosure design. Approach: ✅ I will design an input stage that accepts both 24V AC and DC using bridge rectification, surge protection, and regulated 12V DC output. ✅ I will develop a probe sensing circuit that detects water conductivity and turns on a green LED when the probes are submerged. ✅ I will create a compact PCB layout with corrosion-resistant connectors, proper spacing, and humidity protection for outdoor use. ✅ I will provide the schematic, PCB layout, BOM, Gerber files, and manufacturing-ready documentation. Questions: ✅ I would like to confirm whether the 12V output to the copper probes should be continuous or pulsed to reduce corrosion. ✅ I would like to know the expected cable length between the PCB and copper probes. ✅ I would like to confirm whether the PCB will be placed inside a sealed enclosure or exposed to moisture. Best, Yaroslav
$500 USD in 7 days
5.0
5.0

⭐⭐⭐⭐⭐ This is a straightforward but important low-voltage design job. The key is not just producing 12VDC from a 24VAC/DC input — it’s making the board stable, moisture-tolerant, and predictable in a wet environment, while handling the probe detection cleanly so the LED only confirms a real submerged circuit. I can help with: • compact schematic + PCB layout • 24VAC/DC input handling with the correct rectification/regulation approach • controlled 12VDC output path for the copper probes • submerged-probe detection circuit for the green status LED • practical protection for humidity, corrosion, and field reliability Deliverables can include: schematic PCB layout Gerbers/BOM brief notes for assembly and environmental protection (coating, connector choice, spacing) My approach would be: • define the power-input stage first so both AC and DC input cases are handled safely • design the probe-output stage around your target current behavior • add LED indication logic that won’t false-trigger easily • keep the board compact and easy to manufacture Quick questions: • Do you want a fixed 12V output only, or adjustable current/output intensity? • Are the copper probes already defined in size/spacing? • Is this for an enclosed housing, or will the PCB sit in a damp open area? I can keep this simple, robust, and practical for real pond-side use.
$500 USD in 7 days
4.5
4.5

Hi there! I am a Senior Electronics Engineer specializing in power electronics and high-reliability PCB design. I know exactly how to handle the 24V AC/DC universal input and humidity challenges for this pond ionizer. Technical Approach: I will implement a robust input stage (bridge rectifier + efficient step-down converter) for a stable 12V/0.1A output. For water detection, I will design a high-impedance sensing circuit to safely trigger the LED only when the probes are submerged. The layout will be explicitly optimized for conformal coating to survive the pond environment. My Added Value: Physical Validation I don’t just deliver Gerber files. To guarantee the design works flawlessly, I will build and test the hardware before handing it over. My Plan (2 Versions & Practical Test): Design: Schematic & layout in Altium/KiCad. Prototyping: I will manufacture and assemble 2 physical prototypes. Bench Testing: Rigorous testing for AC/DC stability, thermals, and physical water-submersion triggering. You will receive verified source files, Gerbers, a BOM, and a video test report proving the prototypes are production-ready. Best regards, Ahmed Darwish
$550 USD in 20 days
4.7
4.7

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 so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
$600 USD in 7 days
4.7
4.7

As a team of skilled and experienced electronic engineers and PCB designers, we have extensive knowledge and expertise in developing compact and efficient circuit boards tailored to clients' specific requirements, just like your need for a pond ionizer. With detailed understanding of low voltage power supplies and the challenging environmental conditions found in underwater equipment, our solution will ensure effective control of algae growth in your pond. Additionally, our proficiency in working with electronic components, combined with an intimate understanding of water submersion and high humidity environmental resilience, implies that durability, reliability and performance are the hallmarks of our solutions. Our skill set also includes soldering, which will guarantee the secure connection necessary for long-term functionality. Finally, it's important to note that we've successfully undertaken diverse projects involving IoTs; this not only extends to developing efficient circuitry for myriad applications but also creating smart systems that interact seamlessly for stability. Picking us means choosing reliable expertise proven over a span of many successful endeavors; it'll be an excellent decision that ensures top-tier circuit board development for your pond ionizer needs.
$500 USD in 7 days
4.3
4.3

Hi, I can help design a compact, production-ready PCB for your pond ionizer / algae control system. I’m an Electrical Engineer with experience in low-voltage power electronics, PCB design, environmental protection, and sensor-based control circuits. Approach - Accept 24 V AC or DC input - design robust input rectification + regulation stage - provide stable 12 V DC / ~0.1 A output to copper probes - implement submersion detection circuit so the green LED turns ON only when the probes complete the water path - include humidity / splash protection recommendations (conformal coating, sealed terminals, corrosion-resistant parts) I will also pay attention to safe current limiting, output protection, and long-term reliability in high-moisture outdoor environments. Deliverables - schematic - PCB layout - Gerbers + drill files - BOM with part numbers - assembly notes / environmental recommendations I have prior experience in industrial sensing and control hardware, which fits this application well. Ready to start immediately. Best regards
$300 USD in 3 days
3.9
3.9

Hello I will design a compact, robust pond ionizer PCB with stable low-current output, reliable water-detection logic, and DFM-ready layout for long-term outdoor use. Confirmations -Input: 24V AC/DC → rectification + regulation handled on-board -Output: Stable 12V DC @ ~0.1A to copper electrodes (current-limited for safety & longevity) -Water detection: Conductivity-based sensing → Green LED ON only when probes are submerged -Protection: Reverse polarity, surge suppression, moisture-resistant design Approach -Efficient AC/DC front-end (bridge + filtering or DC path optimization) -Linear or switching regulation depending on thermal constraints -Current limiting (constant current preferred for consistent ionization) -Probe sensing circuit isolated from power stage to avoid false triggers -PCB designed with wide creepage/clearance + conformal coating support Delivery / Scope -Schematic (Altium/KiCad) -2-layer compact PCB layout (DFM-ready) -BOM with readily available components -Gerber + manufacturing files -Optional: enclosure guidance & probe interface recommendations Key Questions -Preferred PCB size or enclosure constraints? -Continuous operation or duty-cycled ionization? -Any certification or environmental rating target (IP level)? Regards, Nichita
$300 USD in 7 days
3.0
3.0

With over a decade of experience in circuit design, electrical engineering, and electronics, I am confident in my ability to meet and exceed your expectations for the development of your pond ionizer circuit board. In my previous projects, I have worked extensively on designing and implementing PCB layouts while strictly adhering to specific voltage and current requirements. This, coupled with my knowledge of working with low voltage power supplies and my mastery in soldering and handling electronic components make me an ideal candidate for this task. I understand that your project requires not only a functional circuit but also an environmentally resilient one. My familiarity with high humidity and water submersion in electronic systems would prove highly beneficial in ensuring long term reliability. Additionally, given the intended application of the circuitboard, I will ensure that all safety standards are met and provide a robust design that effectively controls algae growth in your pond.
$250 USD in 7 days
2.3
2.3

Greetings Dear Hiring Manager I have read the description of your project and I understand everything. "My expertise in designing environmentally resilient low-voltage circuits and PCB layouts ensures a compact, reliable pond ionizer with integrated submersion-sensing logic and stable 12V DC output." I am waiting on chat to discuss more and I am willing to start it now. Best Regards, Zain Abbas
$250 USD in 1 day
4.5
4.5

North Bennington, United States
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