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    15,542 circuit design jobs found, pricing in USD
    Circuit design 5 days left

    ESP32 board for industrial control

    $115 (Avg Bid)
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    17 bids

    Assalam o alaikum !!! We are looking for electrical engineers to join our team and work on different projects related to following domains of electrical engineering: 1) Control System 2) Satellite communication 3) Radio frequency and microwave circuit design 4) VLSI techniques 5) Radar theory and satellite communication 6) Intelligent and adaptive systems 7) Digital design 8) Asic design Freelancers must be proficient in following: 1) Matlab / Simulink 2) Proteus 3) Multisim 4) pspice 5) LTspice 6) VHDL/Verilog coding What I am expecting: 1. Dedication to the work 2. On time delivery of work without any delay 3. Well arranged and properly formatted reports with plagiarism count below 10%

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    Circui_design_task 4 days left
    VERIFIED

    Design circuit You may use Multisim Construct a single phase, one-pulse SCR battery charger in Multisim. The same basic circuit as in section 1 above can be used, but replace the diode with a SCR and include a 340VP : ≈ 200VP (depending on your student number) step-down transformer between the ac supply and the SCR. Implement your circuit in Multisim using ‘virtual’/ideal components. Also add a 10-V firing/triggering pulse via a 10-Ω resistor to Gate and Cathode. You must have some form of delay in the pulse to fire at a certain angle Simulate typical output waveforms for the circuit (choose a firing angle α). Show voltage as well as current – and use a current probe to send the signal to the oscilloscope. Briefly d...

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    using electrical circuit simulator, and describing flip flop

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    using circuit simulators and knowing about flip flop

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    Need some help with some Electronics details on chat.

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    need Android app, that be able to send and receive Circuit Switched Data (CSD) transfer (1G data transfer). It's simple app, just need to send and receive messages through cellar network. App need to send sms as well (so either CSD or SMS) Interface of the app doesn't matter, but should work in offline condition. We will use this code for next iteration of our app. We expect executor to join us on next iteration (with separate pay).

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    Request details e need Android app, that be able to send and receive Circuit Switched Data (CSD) transfer (1G data transfer). It's simple app, just need to send and receive messages through cellar network. App need to send sms as well (so either CSD or SMS) Interface of the app doesn't matter, but should work in offline condition. We will use this code for next iteration of our app. We expect executor to join us on next iteration (with separate pay). Deliverables Android app, that can NO Twillio API or other API, that will require to send data to specific number. But you are free to offer your vision of problem solution.

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    opening appellate brief for the second circuit court of appeal

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    electrical and electronics 2 days left
    VERIFIED

    using circuit simulators and describing it properly

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    ...divided into A4 frames + PCB design + clean BOM + PCB production files + 3D model. Needed features: - 2 pins on main SF8-B Weipu connector are meant for VCC and GND. VCC will be in range 5-36V and step down circui that makes 5V on output should be able to provide 5V of output in the whole VCC range - ESP32-S3-WROOM-1-N16 as microcontroller - solder pads for connecting main SF8-B Weipu connector - 2x rugged joysticks input (solder pads as with main connector, 4x ADC channel, supply voltage selectable with 0R jumper 3.3/5V) - 10x button inputs with debounce circuit - Generally the device is powered from computer's 5-36V DC bus but we want to have the option for wireless communication so there is a need for 1S LiPo battery charger and 5V out step-up circuit...

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    NDA
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    Automation of Cooling tower 1. inputs : Level of 3 tanks, 3 zone temperature, Water detection 4 Points. 2. Outputs : 6 On/Off , 24 DC Outputs Scope of work 1. Making Bill of materials 2. Complete circuit diagram 3. HMI and PLC programming with test run

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    FollowTheSun 2 days left
    VERIFIED

    Not processing more proposals. Follow the Sun is a 50' Solar catamaran. The boat has 2 motors, one in each hull. The motor forward speed is controlled by a 0 to 5v input signal. The motor backward speed is controlled by setting reverse (close contact) and 0 to 5v input signal. Turning is accomplishe...proposals. Follow the Sun is a 50' Solar catamaran. The boat has 2 motors, one in each hull. The motor forward speed is controlled by a 0 to 5v input signal. The motor backward speed is controlled by setting reverse (close contact) and 0 to 5v input signal. Turning is accomplished by reducing the motor speed on one side. Via throttle input or by autopilot command) The requirement is for a throttle circuit that will allow manual and autopilot control. Please contact me...

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    I am designing two PCBs (a RF emitter and a RF receiver) and I would like to find someone to give me a hand with it. A summary of specs is presented below: - The emitter (Tx pcb) it is like a keyfob. It should incorporate an enco...printed antenna. This board will be powered with a coin cell (3V). There will be only 2 inputs coming into the encoder. - The receiver (Rx pcb) should incorporate a decoder (HT12E or similar) along with a RF receiver IC and a PCB printed antenna. This board will be powered with a single LiPo Battery (3.7V). There will be 4 outputs. This board should also incorporate a LiPo charging management circuit (TP4056 + DW01 + FS8205) and a DC-DC boost IC (MT3608 or similar) since one of the outputs requires 12V. I´ll provide you with more details in ...

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    Hi, Need some help in transferring & transitioning analog circuits to hardware, and have little to no experience in assembling the components on a breadboard. the analog circuit on proteus looks fine so just need help to transfer it to the hardware part through a series of zoom calls until we reach the end result.

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    Flushing valve 1 day left

    Need a programmer to code arduino, raspberry pie programmable circuit board to open for at least thirty seconds then stay closed for at least thirty days before opening for another thirty seconds, but also complete a app that will allow changing the opening time and how long the closing time thru cell phone

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    Import duty for circuit boards

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    We are looking for an experienced Electrical Engineer with knowledge of food/automation equipment to help validate heater circuit conversion for the Australian market. We make food forming equipment for the US market. Our specifications use 240VAC, 3-phase, 60 Hz to power to energize a hydraulic ram (motor) and to supply single phase voltage directly to the heaters in our forming dies. We also transform the 240VAC to 120VAC for control circuitry. The available power in Australia is 415VAC, 3-phase, 50 Hz. We have swapped motor components to accommodate, and our controls transformer can convert this power to 120VAC. However, we need to validate our design ideas for our forming die heaters is appropriate, a special challenge given current supply constraints are limiting c...

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    Urgent NDA
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    Class E RF Amplifier 23 hours left
    VERIFIED

    I coordinate a design team for the realization of a device that includes an RF section but in the group we have limited knowledge of RF design. In particular I need to make a Class E RF amplifier with the following characteristics: • operating frequency 406.0 MHz • power 5W (37dBm) • TX duty cycle 10ms (transmission time 500 ms every 50 s) • 7.2Vdc power supply • input power 100mW (20dBm) • two-phase modulated input signal • input impedance 50Ω • output impedance 50Ω • efficiency ≥ 70% • operating temperature between -20 and +55 • the output power must go from 10% to 90% of the max power in less than 5ms • must work with VSWR between 1: 1 and 3: 1 • must not be damaged if the load is shorted or o...

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    To build one stand-alone module which is able to: o work as a CAN sniffer o optimize DM signals clearly (damp over/under shoots). Develop, build up, test and run a stand-alone CAN sniffer module with signal integrity optimization capability. “signal integrity optimization” DM disturbances on the bus-wires shall be ...work as a CAN sniffer o optimize DM signals clearly (damp over/under shoots). Develop, build up, test and run a stand-alone CAN sniffer module with signal integrity optimization capability. “signal integrity optimization” DM disturbances on the bus-wires shall be damped, scientific proved by oscilloscope and simulation it is not allowed to include an available SIC-transceiver o a “hand-made” circuit board is sufficient o activation...

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    electric circuit analysis 3 hours left
    VERIFIED

    i need someone can solve my project

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    Civil suit writer 2 hours left

    DO NOT LOOK AT PRICE i need someone to write a civil suit for me...i have several cases i need to file in circuit civil court they are not small claims....conspiracy on rights ......1983s claim bivens. breach of fidiciary duty Fraud personal injury intentionl tort and a few other

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    Hey, I need help with integrated circuit design I will share details.

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    Verilog/VhDL FPGA Asic Electronics Microcontroller

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    I am looking for some help on a gripper application I have. I am using a NEMA17 stepper motor with drv8825 and Arduino Nano. Here is what I need: Home the gripper open to a micro switch on power up and wait for run input. When the switch is pressed and not released, the motor should make the travel forward 800 steps and reverse 800 steps and stop while touching the home switch. The circuit should wait until I press again the "run" button to go forward to close the gripper and reverse again to home switch. I need it to travel a specific distance. I only need the .ino file for this.

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    Its a rain sensing and speed determining project

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    1. This is a project based on a circuit board. I will provide the schematic diagram later. In the picture you see a BLE module, but I will try to add one more. 2. The connector on the upper left has 4 input, 12v, gnd, CAN+ and CAN- 3. The 4 connectors on the bottom is pretty much the same, it control 4 identical components. Each connector has 6 wires: Gnd, two output for dc motor, ws2812 data, 5v, and a switch trigger. 4. Whenever a switch is pulled to ground, it will trigger the motor to pull for 1 second. 5. Whenever a motor is pulled, the ws2812 will start to light up. 6. After 20 seconds, the motor should reverse back. And the Ws2812 strip should light off. 7. Whenever a certain CAN signal is received (will be provided), all the 4 motor should pull for a second. All 4 ws282 str...

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    Mi...with basic interfaces Bus SRAM and EPROM 1. Complete the necessary interface signals between microprocessor 8086 and SRAM and EPROM 2. The EPROM is only available in 8KB component 3. Use whatever necessary components; such as buffers, bidirectional buffers, latches, decodes, and 2-input NAND gates 4. Draw clearly all connections and components by using the emulator8086 in the lab 5. Check the design by doing the following code: 1- Program EPROM1 with all 1’s 2- Program EPROM2 with all 2’s 3- Read data from EPROM1 and add value 2 4- Read data from EPROM2 and add value 6 5- Store the modified data from EPROM1 into ODD SRAM 6- Store the modified data from EPROM2 into EVEN SRAM 7- Read data in 16-bit from SRAM at Address FAB02 and store it in AX register 8- Show the va...

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    I have a coffee machine comes with 12 selections; all of these selections are connected via touch panel from the front of the machine; I need an Arduino code to get the action from the touch panel when the customer pressed any of the touch buttons; I already create a code to do some tricks like rfid then return the result to the coffee machine via the same selection. Summary: I want to simulate the touch panel and get the selected touch button. all other coding already completed. the attached pictures show you the touch panel & the main board of the coffee machine

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    the concept, design methodology, architecture, circuit gate & performance (speed), and fabrication techniques for integrated circuits (ICs). The main focus is on design for complementary metal-oxide-semiconductor (CMOS) technology.

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    Hey I need someone who knows how to deal with integrated circuit design and vhdl

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    Need to be familiar with c programming, CCS compiler and MPLABX. And generally good at drawing circuit diagrams.

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    I need a North America Based PCB Designer to create a Gerber file for a flexible PCB which is a voice Coil used in vintage Loudspeakers. There are no electronic components on the board, it’s nothing but one long circuit trace in the shape of a Coil, and it is 2-Sided, with 2 VIA’s to route the Trace/Coil from one side to the other. In the final product this is mounted in a Plastic Frame, and its function is Planar Voice Coil used in an Audio Midrange Driver. (see photo’s). The Deliverable is a Gerber File ready for Production, and there may be a couple revisions as the project progresses. I need a USA/North America based provider because my sample will be shipped to you so you can measure and copy the mechanical dimensions and coil layout. I do not want to dea...

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    I want to make a continuity tester for cable harness. The cable harness consists of leads provided to five shelves of equipment. Each shelf has 2 cables first cable has 5 wires and second cable has 4 wires. I want to read continuity from the first shelf cable clear down to the fifth shelf. I want to use led...cable clear down to the fifth shelf. I want to use led lights from an inexpensive string of Christmas lights powered by 120 Vac. Each shelf would have a total of 9 Led lights, for a total of 45 Led lights. When I have complete continuity on all wires 45 Led’s would light. When I have any wires with bad continuity those Led’s would not light. The circuit would need some type of replaceable fuse in case of a fault in the wiring. I need this circuit ASAP. Any o...

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    I have a Project at hand which requires a BLDC motor to be RPM controlled. Basically, the shaft has to rotate at a constant RPM with varying loads. I’ll give more details to the selec...requires a BLDC motor to be RPM controlled. Basically, the shaft has to rotate at a constant RPM with varying loads. I’ll give more details to the selected freelancer. So basically, the tasks to be done are: 1. Selection of Motor from online websites based on my requirements. 2. Selection of Motor controller from online websites or design one. 3. Design/coding of a Arduino based PID controller or be combined with the motor controller. 4. An AC to DC circuit design for powering the motor or selecting some readymade stuff. I am not an Electrical Engineer so I might no...

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    The project is to add the circuit into existing PCB. The circuit is offered. The designer will update the schematic and PCB. And if you know about firmware development for ATXMEGA128AiU and Atmel studio 7, it is preferred.

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    Federal case law about 1344(2) in third circuit and I need motion draft

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    ...protective relay. ii. To investigate the performance of the modelled distance relay in the presence of various multitude faults in grid-connected and islanded. iii. To improve distance protection relay reliability with communication assisted or Machine Learning Classifier Algorithm. PROBLEM STATE-MENT: In both modes which is islanded and grid connected of Microgrids (MGs) have different short circuit levels. The fault level in islanded MGs is lower than grid connected MGs due to fault contribution of distributed generators is lesser than contribution of microgrids. PV inverters as one of main part in PV system also has fault contribution and it’s limited by its control system in order to protect the internal power electronic devices. The other impact is the phase angle of ...

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    I need someone for approximately one week to hand solder 3, 0604 resistors to a circuit board. we have a large number of circuit boards and we think the work will take approximately one week. to do. We are based in Mentone but the work work can be done anywhere in Melbourn.

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    Easy help with Basic Electronics details in chat. (Circuit and Multisim)

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    Circuit schematic is required for dc supply as per below information Input voltage 24v dc Output 1 -> ±5v (for in-amp and ADC) Output 2 -> +5v ( for microcontroller) Output 3 -> +10v ( for h bridge and dc motor) Output 4 -> +3.3v ( for ADC digital part) Required is that motor operation should not influence the ADC reading Find the schematic attached

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    ...protective relay. ii. To investigate the performance of the modelled distance relay in the presence of various multitude faults in grid-connected and islanded. iii. To improve distance protection relay reliability with communication assisted or Machine Learning Classifier Algorithm. PROBLEM STATE-MENT: In both modes which is islanded and grid connected of Microgrids (MGs) have different short circuit levels. The fault level in islanded MGs is lower than grid connected MGs due to fault contribution of distributed generators is lesser than contribution of microgrids. PV inverters as one of main part in PV system also has fault contribution and it’s limited by its control system in order to protect the internal power electronic devices. The other impact is the phase angle of ...

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    iot agricultural monitoring system obstacle avoiding robot small range radar system using sonar sensor . Ir remote-based load control circuit. design and implementation of custom made arduino and stm32 boards . Bluetooth controlled car . wireless data transmission using nrf module Home security device using esp and gsm module. Mini drone with Esp 32 . STM32 featured line following robot

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    Develop doppler ultrasound based electronic circuit for fetal heart rate monitoring for pregnant women to determine the well being of the baby, such that it can pick up heart rate from a single location on the abdomen

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    I am after a soft latching circuit to control a 24v power supply. Using a piezo touch switch. The motor can draw up to 120 amps. I would also like it to have some inrush control to stop any sparking if using relay. Would like Berber files so can get pcb made.

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    Knowledge in integrated circuit design and vhdl

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    I currently have multiple off-the-shelf boards, with various components, connected to a Teensy 4 processor. I need a custom PCB board design with the same footprint as the Teensy, incorporating all of the components on the separate boards I'm using now. This daughter board will mate with the Teensy, using standard headers, providing me the same functionality. The components to be integrated into the board include: 3-axis accelerometer Lipo Charging Circuit MicroSD Card Slot & Circuitry JST Connectors Resistor Array Status LED Slide or Latching pushbutton switch Momentary pushbutton switch Piezo buzzer (or equivalent) Board size is roughly 52x18mm. Components can be on both sides of the board as long as they don't interfere with it mating to the Teensy. Ho...

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    ...calculator): 1. While typing the number it should be displayed right aligned, extending to the left. 2. After pressing "+" or "-" display should be reset to empty, and the next number should be typed. 3. After typing the second number, "=" should be pressed and the display should contain the final result. Specifications for input-output size and structure of the circuit (Important!): For addition and subtraction modules the circuit should work directly on BCD numbers. For addition and subtraction operations each entered number can be at most 4 digits. Entered numbers are positive (no negative numbers as inputs). However, for subtraction the result can be negative. Therefore, the leftmost display (5th) should show minus sign for negative result...

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    I'm looking for 3Phase BLDC motor controller and motor models. This should be developed in Simscape SIMULINK. Should include detailed but simple circuits component design - including all these DC-LINK, PI-Controller, IGBT, inverter, commutation logic, regen circuit, i(abc) current output to Motor, motor loads.

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