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    15,633 circuit design jobs found, pricing in USD
    PCB Design - IoT Project 6 days left
    VERIFIED

    The project is to consolidate a proof-of-concept equipment-control board, built using various off the shelf components, into a single coordinated Printed Circuit Board (PCB). The board will have incoming and outgoing power terminals for; 240Vac, 24Vdc, 12Vdc and 5Vdc. There will be a 240Vac, “Power” section for all 240Vac terminals and a low voltage 5-24Vdc “Controls” section. All PCB route traces need to be sized accordingly, to accommodate the correct voltage and current going through them. During the initial prototyping stages, it was found that some parts, particularly input devices, suffered from EMF issues. To reduce the effects of EMF caused, a large “ground” area should be designed into the board to reduce/remove residual EMF. A further s...

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    Hi - I am an exercise junkie (running, tennis, pilates, circuit training) and exercise 5 times a week. However, I am also a foodie and struggle to tailor my diet to my exercise routine for optimal performance and aesthetic results. So I am looking for an expert nutritionist to help me think through an appropriate diet plan.

    $50 / hr (Avg Bid)
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    there is one PCB have components on both side, and most of the parts on its top side are all THT footprint, we would like change them to SMD footprint, of all, right now the docs possessed included schematic diagram, gerber file and layout drawing

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    I need a motion to dismiss drafted with case law to support the pleading. Must be completed within 12 hours. Motion should be simple and include case law that show a redemption matters must be handled in probate court rather than circuit court.

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    EasyEDA Zoom session to make a few moderate adjustments to a prototype board. Add LiPo, Charging, etc Required to be completed via EasyEDA and open to Q&A during a remote session (USA/PST GMT-7/8). Task will include updating components and adding new items to the circuit design. Example EDA Project: ESP8266 CBDB Ultimate DevBoard Sample Schematic: If you have read this place the word ESPDEV at the bottom of your post to filter out bots and spam. Thank you!

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    19 bids

    I need an electrical engineer who specialize in circuit design for a short term (2 months approximately) project

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    Local
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    Hi. Attached a few spike from scope capture. Need at least 8 channels simultaniously. 1. how to get detect these with a precision of 1mV? 2. how to get the value in stm32? (worked with these a lot) (or do we need an ...(worked with these a lot) (or do we need an fpga) Freq is 200hz at first. Looking to get to 1 khz in the near future. Duration is only 5 to 12 microseconds. What is the best way to do this precisely ? heard tons of ideas (peak-tect circuit, 20 msps adc, etc , but need real proven experience. !!! please apply only if done this succefully. In the opening bid propose direclty your solution. Biggest bids will be disqualified. Stop bidding the top of freelancers brackets. No B*****S approach. Will be paid only if it WORKS! Need software, parts id, and pc...

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    Design multichemistry cell active bidirectional balancer to/from 12V/24V/48V Bus. Power approx 20-40Watt. Intermodule communication with isolated 1-Wire, SMBUS or RS485. Monitoring of cell voltage with +/-5mV. Status LED. Cost optimization. Pls consider DSPIC family for switcher design. Battery protection circuit for serie of cells to BUS. Reverse Protection, serie cell monitoring, over current / voltage disconnect. Current 100A. Solenoid driver. Fuse. Firmware programming in C, communication of cells in serie with protector. States Balancing, Idle, Error, Update.

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    I had designed a Butterworth filter which works fine on other software. I want to run it on Simulink. I had the model and parameter but I need help from a Matlab expert. So first there is a need to add noise and the using different frequencies and voltage of that noise, have to see charactertics of the filter. A circuit diagram will be given after finalized the project Thanks

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    ...opposing Hall Effect microcontroller circuit). As well as being able to turn Electromagnet on or off. For the Hall Effect/Microcontroller side, I want to see the measured value of the magnetic field and a directional indicator directing to the centre of the magnetic field. And to also identify when the value of the Hell Effect sensor believes it is zero-zero in the X and Y axis with the Electromagnetic field. The feedback interface from the microcontroller could be a simple digital display for magnetic value, even some LED's for directional guidance in the North-South East-West movement, and another LED for reaching true zero on each axis. This test fixture is only a guide to determining the components and electromagnets. For example, in our actual design, we will...

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    I need experts to have good experience in power line communication to build power line communication system between two circuit

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    I'm looking for a PCB designer to help build a converter chip for me. I want to take PD 80W power from a power bank and convert it 5v4a and 15v (have a bridge circuit or something to switch between the two). $50 to help design it, and another $50 to assist in getting it manufacturered

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    ...digital input/output pins (of which 6 can be used as PWM outputs), 6 analogue inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. Upgraded revision featuring stronger reset circuit and CH340gUSB This upgraded model is completely compatible with original Arduino UNO. Microcontroller: ATmega328P Operating Voltage: 5V Input Voltage (recommended): 7-12V Input Voltage (limits): 6-20V Digital I/O Pins: 14 (of which 6 provide PWM output) Analogue Input Pins: 6 DC Current per I/O Pin: 40 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB (ATmega328P) of which 0....

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    Hi, I'm preferably after someone that has previously designed a 2.1 AMPLIFIER circuit. Am after 2.1 Amplifier. 2 x Main Speakers 2 x Satellite Speakers 1 x Subwoofer out. SMD Components. With quality amplifier chips. Thanks

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    To use a processor of STM32F030C6T6 or equivalent which is available for ready stock and design a circuit to sense the battery voltage, PV voltage, load voltage, charging current, discharging current, battery temperature, load trip, load ON/OFF, etc. To ensure the battery charging from 22V considering the battery floating voltages. All charging programs are to be taken care of by the microprocessor, to calculate the battery SOC & battery cycle. To provide options to change the parameters & battery cut-off points

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    Designing a circuit 1 day left
    VERIFIED

    I have made a project which is basically creating electricity now I want to store that into a battery and then further convert that into ac so for that purpose I need someone who can help me out. Preferably U should be from Hyderabad so that I can show you the project and accordingly you can work on the circuit.

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    I need assistance in setting up a new router and possibly a switch to provide internet access to multiple tenants. I currently have 1gig circuit with a /26 set of IP’s along with multiple strands of SM fiber to each tenant. What’s the best method to allocate 50-100Mbps to each tenant and to separate traffic by IP. I’ve heard Ciena would be the best hardware for this. Let me know how you would build out the network and what hardware I would need to make this happen.

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    I want a PCB designer who design a pcb . i want a pcb and circuit designer for a big project if anyone wnt to collaborate with me please message me. Thank You.

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    Zero crossing detector Ac220V 50/60Hz Circuit Diagram + PCB + Gerber + .ino + ESP + Java Apps Nowadays home automation is a very popular device. Home automation is the automatic control of electronic devices in your home. These devices are connected to Bluetooth, which allows them to be controlled remotely. If you want to do business with home automation then you can buy our full package. What can you do with it? 1. With this project you can control the electric device in the room through your smartphone. 2. ioT and Bluetooth technology have been used in this project. 3. You will be able to control a total of 6 different electronic devices in your home. 4. You can control the speed of the fan in your room. ( Zero Crossing Detector ) 5. And this project wil...

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    An Oscillator need to be designed using Dielectric resonator in feedback network at 7 GHz and active component (GaAs FET) with good stability factor and gain , in Keysight ADS software tool, Spectrum and waveform to be analysed of overall circuit.

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    The aim of this project i...of this project is to create a scanner that measures electrical impedance on the skin (Magnitude + Phase shift). The hardware that i am going to use is: USB-2020 DAQ, Universal Screw Terminal (37-pin), Arduino, SparkFun MiniGen signal generator. The software that i am going to use is: Labview 2019 SP1 I need a freelancer to help me build my acquisitioning circuit and develop the LabView software to operate it. The logic behind the circuit is, we apply some voltage/current on the skin and measure the impedance of that area as a response. We then do the necessary calculations and print the results on the screen in Graph form, Nyquist plots and (if possible) some type of spectrogram. Hardware should be placed in a black box and operated exclusively ...

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    Hi all! I need a complete easyeda project with: Powered with 24v 1) Arduino nano ( 2 x16 pin female headers to put arduino on it) powered on vin with 7v 2) MAX485 ( wired to arduino) 3) L298 powered at 12v 4) 12 pin header female 2x6 to put this on https://www.amazon.it/gp/product/B098STDN15/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 pls ask, before bid: 7+1? PCB will have a terminal block with 6 pin ordere as : 1 24V+ 2 GND 3 RS485/A 4 RS485/A 5 free 6 free Some example project to pick example Pls ask for other info before bid and make insensate offer

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    I have a simple circuit that is a battery operated rgb color switcher that runs on a PIC10F202; When the button is pressed, the single RGB LED changes to the next color in the sequence. When the battery is installed, the unit is on, and when the battery is removed the unit is off. What I need is to have the code modified so that the uController behaves in the following manner: 1 Unit is off with battery installed 2 Button is pressed once 3 Unit turns on with last selected color illuminated 4 Successive button presses will cycle to the next color in the sequence (R->G->B->Y-C->M for example) 5 Unit will stay illuminated in the current selected color until, 6 Long press (2 seconds) will shut the unit off and save the last selected color in memory 7 Operation repeats as ...

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    I need a circuit diagram consisting all the necessary transistors and logic gates , to provide power to a gps, a bluetooth, a small speaker , all powered by a small rechargeable battery. I need this circuit to be less power consuming and provide more efficiency

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    I need to create a simple circuit diagram including specific components that allow me to detect a light or infrared, and get a 5v signal in an Arduino Uno when the light is seen. I have a 5v laser for Arduino and the sensor may get only a 1% or less of the intensity of the light. don't think if there is light around, the sensor and the laser will be inside a dark space. Could be awesome if you can use LTspice XVII to make the circuit.

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    Date: June 25, 2022 Pneumatic Control Circuit with BOM (Bill of Materials) This project will be posted for up to (7) days, to review submissions and discussions on the proposed project. People submitting the bids should be able to discuss the criteria of the project and ask / answer questions regarding the bid and their capabilities. It is not a complex project but should be presented well with details of the operation. When submitting the finished project it will need to be viewable and editable in Excel or Google sheets. All of the control items should be standard control symbols and can be pictures imported into the sheet. The lines and text below symbols will need to be editable in Excel. The finished product will be the pneumatic control circuit and a legend / ...

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    We would like to create a video with 3D animation showing how our liquid metal circuits can replace a rigid circuit board with a super stretchy material that can be embedded into a thin glove, shirt, elbow sleeve, etc. We'd like to show an exploded view of circuit/sensor with the typical "engineering diagram" aesthetic (like in the attachment) pointing out key components and capabilities. Then we would like to animate it “going into” a garment and convey that there is useful data now streaming out of the clothing. Perhaps after the circuit is embedded, we zoom out and see that this garment was being worn by a person and they are performing an action and it is emphasized that the material is still extremely thin and pliable. I have attached ...

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    Schematic Design | PCB Design | Product Design, IoT developer, PCB Designer, Embedded programmer, circuit developer, Hardware Engineer

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    I am looking for easyeda expert who is able to work on PPD candidate must know how to design circuit and choose in-stock components from LCSC. If know about firmware development, it would be great.

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    Development of Ultrasound PCB Need the generator to work around 1.7Mhz freq. with 8 outputs Need that the PCB with impedance matching circuit(to the transducer and electronic) thanks *please contact me only when you have an experience with ultrasound designing *Please be aware that I need full work: design-manufacturing-assembly-testing and shipment to be a full working prototype the payment will be only for working prototype attached specifications(can be change)

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    I need to control the dc motor speed using the Temperature sensor PT 100. The speed of motar should increase /decrease with temperature. The circuit should be simple and cost effective. No need to use microcontroller.

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    I have an image of a circuit board with multiple items. I need each item outlined and all text annotated. Please see example image. (Note text has not been added, but it will need to be added.) Please start your bid with the word 'City'. More details the better. The resulting image should be a SVG vector image compatible with InkScape.

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    ...GPIO17(TX) and powered by own Step-Down from 12V to 3.3V, it could be used MP1584EN, or any suitable circuit up to 2-3A 7. ESP32 powered by own Step-Down from 12V to 3.3V it could be used MP1584EN, or any suitable circuit up to 2-3A 8. Display Module 128X128 I2C 1.5inch SSD1327 128128 LCD Screen via I2C - GPIO22(SCL), GPIO21(SDA), powered by the ESP32 supply 9. NEO-M8N-0-10 connected to Serial 1 - GPIO12(RX),GPIO14(TX), powered by the ESP32 supply Bear in mind: SIM7080G RX<---TX(GPIO17) ESP32 SIM7080G TX--->RX(GPIO16) ESP32 NEO-M8N-0-10 RX<---TX(GPIO14) ESP32 NEO-M8N-0-10 TX--->RX(GPIO12) ESP32 The PCB board should be compacted industrial standard. After design approval would need a Circuit, PCB and Gerber files suitable for or Please b...

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    I am using split rail supply using attached circuit. Total current draw is nearly 100ma at 24v input. Current situation is PNP transistor getting hot. So if current will increase it can cause the issue. What cout be the solution to improve the situation.

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    Looking for a simple circuit to read 3v3 level on adc without opamp.

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    Hi, Im looking for somebody to help me on SIngle phase ac circuit, three phase ac circuits, RLC circuits, Transformer and magnetic circuits. Please dm for further details.

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    A small electronic circuit is to be designed for a TENS unit with Bluetooth for Phone integration.

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    we need to designe circuit that can transfer any text ino digital form and from digital to analog to antenna. we have antenna ready designe that need to be attach to circuit. So Basically via computer software alpha numeric data will send to coil.

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    We need a circuit that can generate impulses in the output from input source battery of 9 V. the required impulses in the output should have voltage more than 100 V during maximum load and frequency of 50 Hz.

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    The project should have logic circuit is composed of different logic gates with inputs and outputs. Each of these gates have a variable number of input and output pins. Output pins can be connected to (multiple) input pins to build a larger circuit. The state of the output pins depends on the state of the input pins. The most common logic gates are: AND, OR, NOT, XOR. These gates can also be combined to make more complex logic components. Some examples include a half adder, full adder, shift register, d-flipflop to name a few. There are two special types of elementary gates: NAND(not and) and NOR(not or). They are called universal gates because they can be used to build any other gate. I need this as soon as possible.

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    I need to write a TCL script (synopsys tool) to cut and remove overlaps from a given circuit design. Given Vss - ground and Vnnaon - power, the objective is to remove parts of Vss that are overlapping with Vnnaon. i have this partial working script, but it fails for some cases of multiple overlaps

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    I think I need a PCB designer We are in the very first step to creating a proto type. I believe the first step is to have someone design the circuit board. It's a very simple design. See attached

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    Electronics repair, computer repair, would like something that features circuit board traces in the logo.

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    I have a circuit based on an attiny that power cycles an external circuit when an input is held high for 1 second or more, and then goes low again. I'm using the code linked below from github. I would like it modified so that instead of power cycling when the state change is detected, I want it to power cycle when no state change is detected. In other words, I want it to be more of a watchdog that cycles the power if it does not get pet instead of just a reboot circut that cycles power when it is told to. The rest of the code should continue to work the same i.e. don't powercycle more than once every hour. I can easily test the code here. The amount of time to wait for a "pet" should be a #define at the top of the code.

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    5 years of experience designing or building circuit boards. Experience in microcontrollers, sensors, or high-voltage circuits Real world experience with electronics

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    I need a solution to drive up to 16 LEDs with PWM LED Driver (must be able to fade/blink/etc...) that communicates by I2C. I also need to read 8 ADC values, but it can be either through a multiplex...PWM LED Driver (must be able to fade/blink/etc...) that communicates by I2C. I also need to read 8 ADC values, but it can be either through a multiplexer (I2C or standard) or some multi-channel ADC chip communicating by I2C. I need parts that are available right now and there should exist some development board with that chip that I can buy. The project goal is to find the parts and provide a circuit diagram of the solution (block diagram or full schematics). I am also open to alternate solutions which achieve the same purpose (driving LEDs and reading ADC using as few MCU pins as ...

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