Circuit design jobs
...knowledgeable individual to design an RF transmitter circuit compatible with the rx480e module at frequency 433MHz. Importantly, I need the transmitter circuit to be simple yet effective, with the capability to cover a long-range distance of at least 3km to 5km. With 4 chanel. Key Aspects: - Long-Range Communication: The transmitter circuit should be designed to work efficiently over long distances - a minimum of 3km. - Simple Design: The design needs to be as straightforward as possible, without compromising functionality. - Compatibility: The transmitter circuit must be compatible with the rx480e module. The Purpose: This RF transmitter circuit will be instrumental for a remote control system that is able to control a small rel...
Need someone to program and circuit a coin, bill, and card acceptor. We are setting up a water vending machine. It will be more like a gas pump that is for water. where you put money in, and the pump turns off when the amount is reached.
I'm in search of a skilled and certified professional who can create a detailed single line electrical diagram for a commercial building. This project aims to fulfill the requirement for a building permit application. Your tasks will include: - Designing a detailed single-line electrical diagram, including all circuit elements. - Affixing an official engineering stamp to the completed diagram to signify approval. The perfect contractor for this project will: - Be versed in commercial electricity distribution and power systems. - Have experience creating detailed single line diagrams for commercial buildings. - Have access to an engineering stamp, or be a certified engineer. This is an opportunity to have a substantial impact on a commercial project's green light. Show o...
As an electrical engineering student, I need assistance with an intermediate-level assignment on power converters in power electronics with the switched capacitor circuit. The freelancer's main responsibilities will be: - Problem-Solving: Help me figure out solutions to problems presented in the assignment. - Theory Explanation: Explicate theories related to power converters to promote my understanding of the subject matter. - Design and Simulation: Assist with the design and simulation of power converters. The perfect fit for this project would be someone with a strong understanding of power electronics, specifically power converters. Previous experience in academia or tutoring would be an additional advantage as they might be more prepared to explain complex t...
I am in need of specialized assistance with creating advanced level, comprehensive schematic diagrams for control circuits. Tasks: - Creation of new schematic diagrams, focusing on detail and technical complexity. Ideal Skills and Experience: - Excellent understanding of control circuits - Proficiency in eplan software - Experience in creating complex schematic diagrams - Ability to generate reports based on schematic data
...project is a simulation of electric circuit lab where the user can put together different electronic components to make a functioning circuit. Essential Points to Consider before Bidding: * The Developer should be able to create 3D models of the different circuit components. * The user interface should allow for drag and drop placement of components. * The simulation should be capable of handling complex circuits, specifically microcontrollers. * The simulation must provide basic analytic data, such as voltage and current. Ideal Candidate: A successful candidate for this project should have significant experience in Unity and a strong background in electronic engineering, particularly in the area of microcontrollers. A thorough understanding of circuit be...
As an individual looking to improve an existing circuit system, I'm searching for a proficient electronics engineer. Your expertise will be crucial in all aspects ranging from circuit design, PCB layout to firmware development. The specifics of the project involve: - Analyzing and refining the current circuit system - Redesigning the PCB layout for optimized performance - Firmware development for better functionality While you have the liberty to employ any CAD software - Altium Designer, KiCad EDA, Cadence Design Systems, or another of your preference, a strong proficiency and extensive experience in the use of these tools would be ideal. If you're someone who has a deep understanding of electronics, excels in problem-solving, and has a fl...
I'm looking for a skilled designer to help create detailed 3D drawings for an electrical prototype. The focus should be on: - Circuit boards - Wiring - Power supply - Overall shape design The purpose of these 3D drawings is to assist with design validation and prepare for production. Ideally, freelancers bidding on this project will have experience with electrical design and drafting, with a keen eye for detail. Knowledge of prototyping and production processes would be beneficial. The 3d drawings will represent an electronic drawing board. If interested by this challenge, we will provide more information. Thank you, Chloe
I am looking for a skilled Verilog coder with experience in advanced digital circuit design and implementation. Tasks will involve designing and implementing complex circuits, specifically those involving CPUs or intricate state machines. Key Responsibilities: - Design and implement advanced digital circuits - Test and debug created designs - Maintain documentation of design process and circuit function Skills & Experience: - Expertise in Verilog coding - Experience with complex digital circuit design and implementation - Familiarity with CPUs and complex state machines - Proficiency in using Xilinx Vivado for running Verilog simulations Please ensure you have this experience before placing a bid on this project.
...(Uninterruptible Power Supply) design. The project entails designing a complete modular UPS system with a 20kW bidirectional peak shaving-off power conversion system. Attached power specification and detailed job description below. Project Specifications: Power Capacity: 20kW Operation: Bidirectional Peak Shaving Conversion System: Modular UPS Deliverables: Schematics: Detailed electrical schematics showcasing the design of the UPS system. This should include: Power circuitry Control logic Safety mechanisms Input and output interfaces Bill of Materials (BOM): A comprehensive list of all components required for the UPS system. This should include: Part numbers Descriptions Quantities Suppliers Board Files: Design files for the UPS system's printed circu...
I am seeking an experienced electrician to diagnose and rectify frequent tripping issues with two of my household's AFCI circuit breakers. This project requires: - Significant experience in residential electrical systems - Deep understanding of AFCI circuit breaker design and functionality - Capability to diagnose and amend underlying issues causing frequent tripping Although the problem might be straightforward for an expert, complete resolution is crucial, ensuring this inconvenience does not recur. Your expertise and professional attention to detail are essential for this task. Only looking for freelancers located in the Boston, Massachusetts, USA area.
I'm in need of a circuit with particular functionalities. The primary function is to detect the presence of an electric spark coming specifically from a lighter's ignition element when in close proximity. Key Requirements: - The circuit should be sensitive to the electric spark up to 30cm. - Upon detection, it should trigger a signal for about 100 to 400ms. This integration aspect is crucial as the electrical signal will be interfaced with other systems, not an audible or visual response. - system needs to be immune from other non-spark-like event as sound amplifier, small smoke generation AC pump in vincinity (but can be at more than 30 cm of the circuit) - circuit should run at 3.3v and generate a detection signal at 3.3v too. Signal will be push...
I'm seeking an adept freelancer to design a Proteus simulation for a room visitor counter. Project Details: - The counter must increase when someone enters the room and decrease when someone exits. - The simulation should utilize an IR sensor as the core component. - The visitor count should be displayed on a seven-segment display. - The system should be capable to count up to a maximum of 100 visitors. Skills and Experience: - Proficiency in Proteus software - Strong understanding of electronics, particularly resistors, capacitors, and integrated circuits - Proficient in using IR sensor in circuit design - Experience in designing displays, especially seven-segment type. Your expertise in these areas will ensure an efficient and effective completion of thi...
I'm developing a project to monitor temperature with Raspberry Pico, utilizing MicroPython. The crux of the task involves integrating 3 thermistors and 3 LEDs. Circuit and coding has been completed already, looking assistance with Trouble shooting. Tasks will include: - Establishing a USB powered connection between Raspberry Pico and a simple circuit board. - Code development in MicroPython. - Accurate and responsive translation of data from the thermistors into thresholds that trigger the LEDs. Ideal Skills and Experience: - Proficiency in MicroPython. - Experience in developing simple circuit boards. - Skilled in integrating thermistors and LEDs. - Knowledge of Raspberry Pico is a must. A basic understanding of temperature systems and LED signaling principles...
I'm seeking an experienced electrical engineer to participate in the circuit design phase of a home automation project. Your main task includes: - Designing the circuitry and wiring for a modern home automation system I anticipate the project's complexity to be at an intermediate level. You should be familiar with microcontrollers, particularly Arduino or Raspberry Pi. Demonstrated experience in home automation systems will be highly regarded. Having a solid understanding of good circuit design principles, strong problem-solving skills and the ability to work independently are essential for this role. Thanks for considering my project. I look forward to working with you.
I need a professional to create a simple, single-sided PCB design using Altium Designer. Key Responsibilities: - Creating a single-sided PCB layout - Utilizing Altium Designer to achieve this task Ideal Candidate: - Proven experience with PCB design - Proficiency in using Altium Designer software - Experience with simple circuit design This project requires meticulous attention to detail to ensure the PCB operates as expected. A thorough understanding of low complexity circuit designs is essential.
Looking to create a power supply with the primary use of charging devices. This will involve designing an AC-DC 5v USB 2.0 compliant power supply. The design must incorporate the following safety requirements: • Overcurrent protection • Short-circuit protection • Overtemperature protection The ideal candidate for this job will have experience in electronic design, specifically surrounding charging devices and safety measures. A sound knowledge of USB 2.0 standard and the forelisted safety considerations is a must.
...particularly an electrical engineer, with deep understanding of machine learning and proficiency in Python. This project involves creating models using machine learning, specifically in circuit design. The ideal freelancer would be able to: -Design and develop solutions within the realm of machine learning to enhance the functionality of circuit designs. -Preprocess and analyze data using Python in conjunction with machine learning methods for improved circuit analysis. Owing to the nature of this project, experience in the following areas would be beneficial: -Electrical Engineering: Specifically circuit design; knowledge in power distribution and control systems would be a plus. -Machine Learning: Experience in data preprocessing,...
...development of a custom Arduino-based system. The project encompasses both the hardware (circuit design, component selection, and assembly) and software (Arduino code programming) aspects. The ideal candidate will have a strong background in electrical engineering and extensive experience in Arduino programming. Key Responsibilities: Project Management: Oversee the entire project from conception to completion. This includes defining project scope, milestones, timelines, and deliverables in collaboration with our team. Circuit Design: Design and prototype the electronic circuitry required for the project. This involves selecting appropriate components, creating schematic diagrams, and ensuring the design meets all functional requirements. Ardui...
...proficient Arduino programmer with extensive experience in code development and circuit design. As a key part of this project, you’ll be working on a robotics venture tailored for industrial machines. Below are the specific aspects we look at: - Previous experience in programming Arduino for industrial robotics. We value examples of prior relevant projects. - Proficiency in developing custom codes and creating circuit designs to fit unique project requirements. - Strong understanding of hardware integration, though this is not a primary task for this job. - An innovative problem-solver, capable of suggesting improvements or alternatives when needed. Your task will mainly involve developing unique codes and crafting circuit designs in the context of...
Completing an intermediate-level circuit simulation is on the top of my agenda, and time is of the essence. Key Requirements: - Generate a simulation circuit using either Verilog or VHDL. - The complexity level should be intermediate, meaning that it should include components such as adders, decoders, and multiplexers. Ideal Candidate: An experienced freelancer with a strong background in circuitry and simulation languages such as Verilog or VHDL. Quick response and comprehension of task requirements are paramount due to the urgency of the project. Remember, the successful completion of this project is deemed urgent. Therefore, a prompt response and start are appreciated.
Using an STM32F1 Microcontroller and a NFC reader like PN532 (or any other), write C code to a. write a string value to an NFC tag, hereafter referred to as 'data' b. read multiple tags (one by...multiple tags (one by one) and add their data (string value) to an array c. should be able to read minimum 4-5 tags one by one and add their data to the array d. send this array over UART to an ESP8266 (ESP code is not required) e. Use STM32F0 / STM32G0 The tags are placed within reading distance of the reader and the reader must read all tags and log their data to an array. No hardware or circuit design is required, only the STM code is required, along with the description of the hardware used (modules or chipsets that are used). Only limitation is that the NFC...
...looking for an experienced Electronics Engineer who can design a power supply circuit, specifically for charging devices. This project involves replacing a mechanical component, specifically a solid state regulator, with your innovative design. Skills and Experience Needed: • Solid understanding of power supply circuits • Experienced in electronics for charging devices • Familiarity with solid state regulators • Proven track record of successful circuit design The primary goal of this project is to create a reliable, efficient power supply circuit that can charge devices effectively. Please provide examples of similar projects you've completed in the past. Similar to attached file except 6 volt system and low side ...
I am currently looking for an experienced PCB and IoT Hardware Design tutor who can guide me over important topics. Key Topics Include: - Circuit Design - PCB layout - Component Selection Please note that software and hardware specifications were not provided, therefore a well-rounded knowledge of common PCB design software and IoT-related hardware will be beneficial. There is no set deadline yet for completing the tutoring, however, a prompt response and availability to start soon will be appreciated. Ideal Skills/Experience: - In-depth knowledge of PCB designs - Understanding IoT Hardware Designs - Teaching experience or ability to deliver content effectively - Familiarity with various PCB design software - Knowledge of a range of IoT hardware is a ...
...dealing with industrial machinery, I'm looking for an experienced and skilled electrical engineer with profound knowledge and understanding of circuit analysis and design. The main task will be the design of circuits for our industrial weighing machinery, contributing to their overall performance and efficiency. Skills & Experience: * Expertise in circuit analysis and design * Solid understanding of industrial machinery, specifically weighing machinery * Able to integrate theoretical concepts into practical applications * Detail-oriented, creative, and problem solving abilities The ideal candidate should be able to develop an effective circuit design for our industrial weighing machinery that will deliver outstanding reliabili...
I'm looking for an experienced electronic engineer to take on a new consumer electronics project. The tasks that need to be performed for this project are: - Designing and analyzing circuits - Layout and fabrication of PCB - Prototyping and testing the design Though I have no specific constraints at the moment for the electronic design, the ideal freelancer should have a strong understanding of best practices in the field, as this may contribute to the efficiency and overall success of the project. Strong experience in circuit design, PCB layout, and prototyping is crucial. Experience in the consumer electronics industry would be beneficial, but not necessary. This project presents a fantastic opportunity for individuals passionate about electronics and ...
...seeking a skilled professional who can design an integrated system of electrical and mechanical systems for my home, with a focus on advanced features and efficiency. The project should specifically include: - Design of smart home automation systems, including energy efficient lighting fixtures and security systems. - Incorporation of Matter protocol for controllability through smart platforms like Google and Alexa - HVAC system planning, including floor heating, ventilation, and air conditioning inside the ceiling with a heat pump. - Drafting of plumbing and water supply systems. - Energy-efficient solutions I expect the freelancer to understand the application of Matter technology and smart home customization. A deep knowledge of electrical circuit design...
I'm looking for expert assistance with the electrical plan/schematic setup of a medium-sized swimming pool 30m2. This will involve the installation of pool lights, a pump system, a heating system and spare wall plugs for potential future use. Here's what I need: Switch/electricL box, containing circuit breakers and timer to control: -Pool lights - pump system - full inverter heat pump system - 4 spare wall plugs for future utilization - salt water solinator. The timer should control all the above, ecluding the pool lights
I'm seeking an experienced electronic engineer to assist me in setting up temperature control systems in my wine cooler. - To successfully accomplish this, you will need skills and proficiency in circuit configuration and electronic engineering. - I have a particular circuit diagram available that should guide you in understanding and optimizing the electronic setup of the cooler. - The prime task for these circuits will be to effectively regulate the cooler's temperature. Currently have BOM list and parts ready. I need help with 3 things 1. Reviewing BOM list and ensuring i have the correct setup (inc ensuring certain parts are waterproof) 2. Guide me through setup (connecting parts) 3. Guide me through testing The project is very simple 1. Activate 3 ...
...connected to X and use grease and mounted on external shaft (indicated by PINK COLOR) A printed circuit board will be equipped with the correct transistor drivers while the motor signals (pulsating or not) will be generated by a microcontroller The intention of this design is that 2 identical pieces of Y (call Y1 and Y2 for reference purpose) can move synchronously together (exactly same movement) or individually (opposite of each other lets say or one moving and the other one stand still) and this with just 1 single motor drive. The whole can be controlled by a single or dual push button (electrical signal) to actually have either Y1 or Y2 work individually or both together. As a suggestion, this design challenge probably requires an electrical/mechanical solution ...
I'm seeking an experienced electrical engineer to assist in building a drinks machine Key Tasks: - Generation of BOM list - Create wiring circuit and connecting machine components - Determine power supply and control system 1. should check prefabricated electrical machines such as shakers or stirrers, what should be done to dismantle them and what changes the devices make, so that we can design the body of the cocktail machine according to the changes in the final model. 2. An electrical engineer should design a simple power supply and control system and declare all the parts and boards and the amount of wires and sensors and everything that is necessary to finalize the body model, consider their placement, and also esmate the price of the electrical parts nec...
...in the field of Digital Logic Design/Systems who can help me solve problems related to flip flops, logic gates and sequential logic circuits. I'm really having a hard time solving my assignment questions and I need someone to help me within my budget. Could benefit from knowledge and experience in: Introduction, Material Related to Combinational Circuit Synchronous Sequential Logic: Analysis of Clocked Sequential Circuits Synchronous Sequential Logic: State Reduction and Assignment, Flip-Flop Excitation Tables Design of Counters, Problems Registers, Shift Registers Ripple Counters, Synchronous Counters Timing, Problems I would appreciate it if you could provide detailed project proposals, as well as examples of past work and experience in Digital Logic Des...
I am in need of a skilled engineer to design and develop an off-board charger for my e-bike. The charger should be designed for an input voltage of 220V and should be capable of outputting 48V to charge the e-bike. It should also incorporate key safety features: - Short circuit protection - Overheating protection - Overcharge protection The ideal freelancer for this project should have an extensive background in electrical engineering and practical experience in designing and developing off-board chargers for e-bikes. Proficiency in safety standard protocols is also necessary. You should also understand and implement the necessary regulations and standards related to designing e-bike chargers.
I'm in need of an individual skilled in Verilog who can help me achieve a specific task. - Task: Yo...writing Verilog code for a simple module implementation. This does not involve complex system level code designs or CPU architecture. - Objective: The primary objective of the module is to model a specific digital logic circuit. The project does not require interaction with other modules or utilization of specific hardware components. The ideal candidate would possess: - Solid experience in Verilog coding, - Expertise in digital circuits, - Strong understanding of digital logic circuits, - A meticulous approach to ensure accuracy in modeling the required digital logic circuit. If you are passionate about Verilog and love challenges, this project could be a perfect ...
...proposals. More details: Smart home. The smart home system has the following parts. Transmitter Several buttons are connected to the ports of an Arduino Pro Mini. When the respective button is pressed, and the gate goes low, a signal is sent to the receiver. The signal is sent with LoRa. (RFM95 433MHz) The transmitter is powered by 3 AAA batteries or an equivalent battery. The power circuit is replaced with a circuit that draws very little power. see this video Create a Gerber file for the PCB. Receiver The receiver is an ESP32 Node MCU with both WiFi and LoRa. for example Heltec WiFi LoRa 32(V3). The receiver has relays, dimmers for led lights, (possibly a camera) and a button to pair the device. Power from USB. Cost of Gerber file is reported
I am seeking a proficient AutoCAD designer with exemplary skills in electrical design. In this role, you will be tasked with: - Designing an electrical circuit - Creating an effective wiring layout - Developing a functional panel design Your work will contribute to a small-scale project and will require a keen attention to detail. Skills in detailed, precise design work and experience with similar projects are crucial. Please note, I require the use of AutoCAD 2017 .dwg for this project. Familiarity with this software version is essential to your success on this project. If you feel these tasks align well with your expertise, I encourage you to apply.
...with expertise in creating basic circuit boards to help with the development of a new product. We will have 15 led lights that can illuminate normally or flash. They will light in different sequences. Ie Light 1 flashes and light 5 lights. Then say light 3 illuminates and light 3 flashes etc. The idea is to have an app made to manage / send the info for the sequences, I need someone to create the circuit board with the lights so that we can connect to a mobile app. Key aspects of the project include: • The creation of a circuit board design that supports integrated circuits • The product is in its developmental stage, requiring your input and creativity Ideal skills and experiences: • Demonstrated experience in designing and developing...
I'm seeking an experienced Electrical Engineer to design a small-sized custom Printed Circuit Board (PCB) with integrated ESP32 and DRV8833 motor control drivers and 18650 rechargeable bttery. - PCB Size: The PCB should be small-sized, built with quality and precision, and space-efficient. - Motor Control: It needs to control a DC Motor using DRV8833 motor driver, ensuring optimal performance and minimal signal interference. - Voltage Range: The PCB should be designed to handle an input voltage of 5V, ensuring it's safe and efficient. - Battery: The design should incorporate a rechargeable battery without compromising the compact size. The ideal candidate should have proficient skills and experience in PCB design, electrical engineering, and ESP32 i...
I'm seeking an expert electronics engineer to design a circuit for an Arduino-based, battery-powered hand warmer device. This design must incorporate intelligent functionality for temperature and run-time control. Key requirements are: * The device should warm up to 42°C and maintain this for one minute. After that, it should shut down and take a break for an hour (this cycle to repeat continuously). * The unit must have a maximum temperature limit of 45°C. * There should be a 0.96 inch OLED screen displaying temperature and time status. * The design should include push button control to start the skin warming and once the push bottom pressed again the program should quit off the warming cycle . * Using Normally closed temperature switch 45 deg. ...
I'm looking for an experienced full stack developer, particularly strong on the front-end, to create a web-based platform that simulates lab experiments focusing on Electronic Devices. Key Features: - Simulation of lab experiments specifically in the sector of circuit design and analysis. - Quiz section for each experiment Experience and Skills Required: - Extensive experience with Front-End development - Proven track record in creating interactive simulation applications The goal of this project is the realistic simulation of lab experiments conducive to a virtual learning environment. Relevant experience is essential. Please provide details of similar projects completed. Looking forward to collaborating!
i just need a small circuit board design for my esp32 to sit in, and some pads for soldering wires. See diagram.
My project requires a proficient individual to create a PCB design using Altium Designer. The task specifically details: - Crafting a moderate complexity circuit, encapsulating 10 to 50 components. - The construction of a double-sided PCB. The ideal candidate should possess: - Proficiency in Altium Designer. - Previous experience with designing circuits of moderate complexity. - Relevant experience in creating double-sided PCBs. Please provide samples of previous works if possible. This will be a great opportunity for those with the right skill set. Looking forward to your responses.
I'm seeking a proficient electronics engineer to design a PCB board for a control system project. The PCB board needs to integrate key components: - A GPS Module - An ESP32 Microcontroller , Internet-POE ESP32 project is actually started, we already have the autium files with dimmension, but is full of mistakes. As an experienced professional in circuit design and prototyping, you will be tasked with ensuring these components are integrated seamlessly. Particularly, extensive knowledge in microcontrollers and GPS modules is essential for this project. The ultimate goal is a reliable and efficient PCB board for our control system.
I'm in the process of integrating a temperature sensor into a PCB circuit. Accomplishing this task requires in-depth knowledge and experience in programming in C++, Python, and Assembly language, as well as a deep understanding of both circuit design and sensor integration. Key requirements: - Proven experience in PCB circuit design, more specifically with sensor integration. - Proficiency in programming languages such as C++, Python, and Assembly language. - Detailed knowledge of temperature sensors and how to integrate them successfully into a PCB circuit. Your task would be to design a PCB circuit that integrates a temperature sensor while meeting the project requirements and timeframes. Interested specialists should demon...
...4G module that runs on 3.8VDC, along with other peripherals that require 3.3V. The input power for the system lies in the range of 12-18 VDC. The power management circuit designed should: - Regulate Voltage: Ensure the voltage received by the EC200U module and peripherals is maintained precisely at their required levels. - Provide Battery Backup: Ensuring constant supply of power to the 4G module even when the main power source is unavailable. When main power is available, the battery should be charged and system is power from main power. Suitable candidates should have prior experience working with power electronics design, and specifically with industrial settings. Understanding the robustness needed in harsh industrial environments is key. Prior work with 4G module...
...who can design a small circuit board (less than 2 inches). The board must utilize the Bluetooth audio master module I've sourced and support some basic Bluetooth pairing functions. Key Features: - Audio playback (via bluetooth module feasycom BT955) - Power management with 3.3V or applicable rechargeable battery and USB-C charging functionality - Button to scan for local Bluetooth devices - LCD display showing a list of devices - Buttons that give the ability to select a device from the display/list for pairing and pair to it - Button to reset the module/pairing - The bluetooth module will be set to HFP mode and support in/out audio from bluetooth headphones back to a wired in/out connection on the board. The professional I'm seeking ideally has experience with...
I'm in search of an expert in electrical engineering to create a unique circuit for timing a workout routine. The designed circuit should be capable of timing cardio exercises and strength training intervals for a seamless exercise regime. Key requirements are: - It should provide a signal for 1 minute of green light functioning as "exercise on", and 30 seconds red light acting as "exercise off". - This signals should be repeated cyclically until manually stopped. Ideal freelancers should have experience with circuit design, timing mechanisms, and they should have an understanding of fitness equipment or similar projects. This project offers an exciting opportunity to adapt traffic light technology for fitness purpose. If you'...
This project includes the control of a simulated Air Handling Unit and Compensated heating circuit. The 230V AC ‘Air Handing Unit’ (AHU) fan in this project shall be controlled using a VSD. A green ‘AHU Fan Running’ light on the front panel shall indicate if the fan is running. The operator should be able to set a desired speed of the fan on the HMI. The fan may also be controlled by a ‘Filter DP’ potentiometer at the front panel of the board. The potentiometer is being used to simulate a filter dirty condition, with an increase in resistance indicating an increasing filter dirty condition, thereby increasing the speed of the AHU fan to compensate. If there is a VSD fault, the AHU system should stop operating, and a red ‘VSD fault’ li...
