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    15,152 circuit design jobs found, pricing in AUD

    Able to read simple circuit diagram and do report of 9.5k words

    $140 (Avg Bid)
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    6 bids
    design engineer 6 days left

    Build a GPS circuit board. Need a small nano prototype build

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    7 bids

    Need someone who can design and send prototype of a circuit. We have circuit from existing product and need same circuit recreated but with some small change in the final output. It is a kids toy circuit with 2 leds, 1 button, 1 speaker and 2 AA batteries.

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    Consider the sequential circuit implementing serial addition built with two shift registers, a 1-bit full adder and a D flip-flop (Figure 6.5 in Morris Mano & Michael Ciletti, Digital Design). Design and implement in Verilog a 4-bit version of this circuit. Use the behavioral implementation and make the following changes/additions: 1. Create a logic diagram of the circuit. Use Figure 6.5 and update it using the structure of the behavioral model (add a 2x1 multiplexer and parallel inputs to the shift registers). 2. Cleate a logic diagram of the shift register with parallel load as implemented in module shiftreg (block level multiplexers and D-flip-flops). 2. Implement modules shiftreg and serial_adder at gate-level using gate-level D-flip-flops and 2...

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    i need a good electronics engineer to design a PCB for an IOT device for which circuit was already present - pcb should be of least possible size - upto 4 layers - IEC standard design - proper EMI filtering

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    Trophy icon Django based web-app Development 5 days left

    I am looking to develop a Django based simple web-app(website). This website will display the posts. This webapp will in IoT and embedded space. Similar to hackster.io. A user will be able to generate the post: Once a user is logged in 1. Cr...webapp will in IoT and embedded space. Similar to hackster.io. A user will be able to generate the post: Once a user is logged in 1. Create Project 2. Add a Board(Rpi/Arduino/ESP32 ..etc) 2.1 Add board section will have multiple fields like Introduction(Header) 2.2 Overview paragraph 2.3 Add image. 2.4 Add feature(cpu, ram, powerconsumption etc) 3. Add sensor details 3.1 Same as sec-2 3.1 Add circuit diagram 3.2 Add code snippet 3.3 Code explanation (paragraph) Publish the project.. Once a project is published it will get displayed on the h...

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    Hi, I am hoping to find an audio circuit design engineer to create an app controlled module to shape sound connected to RCA/phono outputs for consumers with reduced frequencies hearing. Target market: elderly and disabled of all ages. Bluetooth/Wifi in/out as well as wired capability. Opportunity for a stake in the project possible if requested.

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    Circuit designer 5 days left

    DC to DC portable charger Input 48 v 400a Output 300-500v 40 a

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    ...First project " contains the information needed for the project. It may happen, that questions arise, while working through it. Do not hesitate to contact me. I will answer your questions as quickly as possible. The other two documents are simply explanations on work, that has already been done by former researcher and specificates the conductivity and temperature sensor as well as the circuit proposed by these researchers. These are not mandatory to maintain for the project. If you apply, I am going to contact you as soon as possible and send you some questions. The answers to these questions are important to us and should be answered as precise as possible. Your first bid should not be randomly choosen. You may read the files in advance. Chances for a second bid after your...

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    This project requires knowledge in power relay physics and arc suppression (TVS) techniques. We need a circuit to wrap around a latching power relay to minimize internal relay arcing during operation (make/break) for extended operational life. There are many conceptual ways of doing this such as snubber and varistor approaches, but we need specifics on products to use that are available today and their configuration. The relay in question is rated for 250V, 120A but we are operating in a 120VAC nominal environment with at most 60A full load. Datasheet of the relay can be provided. Expected life of the application/proposed solution is ~20 years with up to 10,000 operations over the life of the product.

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    Digital circuit -- 2 5 days left
    VERIFIED

    I need help with a task in digital circuit

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    Building My Team 4 days left

    As described, I'm building a new company. I'll start with craziest experts from Freelancers to build the initial team and if successful they can join my farm or be my partners..We'll set a term with contracts and the team will be associated with me on the rate decided. I'll not offer any services outside the team I'll chose here. So, I need experts in the following fields, 1. Electronics : Circuit design, testing & certification, 2. Electrical : Servo, PLC, loop control, micro devices, etc 3. Material: Selection of material, property analysis, behavioral study, etc 4. Bio-Electronics: Bio sensors, Bio detectors, medical instrumentation, etc 5. Software: Software developer- C++, Python, Tensor, VB, Micro-assembler, SQL, MySQL, etc 6. FEA/CFD Analys...

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    IoT CMS System 4 days left
    VERIFIED

    What deliverables are expected: - Market ready product employing one of the open sources and tailored to our requirements - Hardware: Circuit design, Circuit diagram Software Requirements - Server: Server application --- Data request from UI applications is sent fetched from the database and sent over - UI: Web App, Android, IOS --- User login in conjunction with controller tag -- Example part "Tuya application system" Can monitor several IoT devices eg Alarm sensors, PIR etc. Knowledge of Chip ESP32 etc

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    What deliverables are expected: - Market ready product employing one of the open sources and tailored to our requirements - Hardware: Circuit design, Circuit diagram and gerber files and related project files for specific hardware - Perform tests - One working hardware - Final outcome: Server application with database, web-app, android app, IoS app (if not native, html5 is also fine) Software Requirements - Server: Server application --- Data request from UI applications is sent fetched from database and sent over - UI: Web App, Android, IOS --- User login in conjunction with controller tag --- Data monitoring dashboards ----- Graphs/tabulation: ------- Value corrections ------- Health of product --- Manual control UI pages ----- Manual control of solenoid value -----...

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    I have a schematic of current sensing circuit in easyEDA format. I need to create 2 sided pcb in easyEDA online designer. Very simple circuit -two amplifiers, 3 LDOs and one reference. Need nice artwork. If you have time to do it, just let me know, then I will send you instructions and schematic file so you can easily upload it into easyEDA and create a PCB file. You will need to send me the pictures of your PCB layout for evaluation before I will pay. Good job will be rewarded with more work as well. Looking for experienced PCB designer for motor control applications.

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    Need to convert circuit () into pcb schematic so i can modify it. Pls tell in what format do you'll design PCB Sensor datasheet and dimension it's attached in

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    Hi, I have a project, I have a few questions, I want to double check my answers and I have circuits to be rewritten. It is one hour job, max two hours, I want it to be started and ended in a few hours. Dm me for more details.

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    I need help with the design of a TENS (transcutaneous electrical nerve stimulation)/ EMS( Electrical Muscle Stimulation) circuit. The circuit should : - Have two channels - Deliver biphasic stimulation. - Be able to also deliver custom waveforms(sinusoidal, square, etc). - Adjust the voltage from MCU (0 to 120V) - Adjust the current from MCU ( 2uA to 150mA) - Have a small size and be power efficient. - Be able to measure skin impedance.

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    I want to design and develop complete PCB with main controller detachable Raspberry pi compute module. The PCB should have following components 1. GPS Module 2. 4G/LTE module 3. Wifi Module 4. USB Ports 5. Onboard temperature and light sensor 6. Onboard troubleshooting switch and LED 7. Onboard power management with resettable short-circuit and surg protection system 8. Onboard solar charge controller 9. MIPI DSI Display port with touch panel input (3 inch to 7 inch touch display) 10. 6 Digital NO/NC Switch (surg protected) 11. 2 Analog Input 12. 8 Digital output (12V logic level) 13. 4 Digital Output (5Vlogic Level) 14. 2 PWM Output 15. Power Outputs 12V, 5V All system combined in single PCB, PCB should protected from other sources

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    We need a 24vdc in to 7vdc out - buck converter @ approximately 1.5amp to power an Arduino Mega / DUE. The onboard regulator gets hot if driven above 8vdc, so I want to have a dedicated 7vdc PSU that doesn't get hot like a traditional linear LM7812 does. I've used AL8805's in the past and even LM2596's, so am open to ideas...8vdc, so I want to have a dedicated 7vdc PSU that doesn't get hot like a traditional linear LM7812 does. I've used AL8805's in the past and even LM2596's, so am open to ideas as long as they're not end of life components which will be hard to source later. Just need a schematic and formulas for 24vdc in - 7vdc out. Milestones will be paid: 1. 50% on supply of the circuit details 2. 50% on completion of testing t...

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    Circuit design for DC motor 2 days left
    VERIFIED

    ...DC motor for 10seconds at particular speed and then stop for 30seconds. Again rotate in the same direction for 10 seconds. - This cycle must be continues till there is power supply. - For now speed control can be a knob/Potentiometer. - There must be ON and OFF switch - The circuit must be small and compact. It should fit in a small handle designed. Dimensions are roughly 50mmX50mm The motor will rotate a shaft made of plastic which has weight approximately 10-20gms. Following are the things I need - a circuit design - Programming for the micro controller - recommended parts to buy including motor, battery, and other necessary parts - BOM - purchase links for the parts listed in BOM. (Only local Indian products. No Chinese website links like alibaba, alisource etc...

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    I'm looking for someone who is able to read the ST SPC564L60L5 internal flash in circuit. The pcb is equipped with a JTAG pin break out. I would prefer a remote job. If special tools are needed I can send out the pcb too.

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    ...simulations on HFSS. The design will be rectangular SIW antenna. Antennas will reconfigure between 3 different bands that I will provide. Design should be novel and antennas will be made to reconfigure using different slots in structure and PIN diodes. An optimal DC circuit will also be designed to control diodes which should provide good isolation between RF signal and DC signal. Microstrip to SIW transitions will also be used while exciting antennas. Antennas should provide good S 11 parameter and gain in all desired bands. You have to provide me formulas that will be used to calculate different parameters of antennas like lengths and widths etc, design and simulations in HFSS using PIN diode which will be modeled using ANSYS circuits and will be used in HF...

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    Hi I need to have some circuit to convert from 1 ghz to 2 ghz and need some inputs on it.

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    Load flow and short circuit analisys, protection coordination for 220kV subststion. Looking for expert only who can show previous extensive experience in this.

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    Hi, Please bid on the project to tell the name of the software which you will be using to create a simulation of the VLC communication. VLC communication has two parts, circuit based and the channel for transmission, so i am looking for someone to create simulation in one software. Please bid, more details will be shared in private message.

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    Thermal characterization of Li-ion battery for internal short circuit and nail penetration test for cylindrical cell.

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    It simply a touch switch .Using battery 3.7 volt , I need to touch the battery almunium cover it on and off the battery exactly the link I have mentioned below . I need only the circuit digram. i need the circuit by smaller as possible , to not make a pcb larger than 4cm*2.5cm

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    The block has to be able to transform infrared radiation, around 940 nm, to electrical output of 3-4 V, 40 mW or more. Requirements: Block circuit is self-powered from the abovementioned infrared energy source (without additional battery, etc). Block has to be restricted to size less than 1 square cm, and less than 2-3 mm height. Block components have to be common/accessible/inexpensive, preferably of SMD type. Possible solution is "Joule thief" schema with PIN Photodiode. However, other solutions are welcomed. Project's result has to be presented as EasyEDA compatible schematic and PCB, with video proof of its functioning.

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    Grid tied system design required as attached example. Minimum output required 25kva. No backup battery storage required as simply reducing mains costs. We have 175 200W solar panels with the following specs: MODULE TYPE: ESG-200M (MONO) Peak Power (Pmax) (W): 200 (200W) Production Tolerance (%): ±3 Maximum Power Current (Imp) (A): 11.2 Maximum Power Voltage (Vmp) (V): 18 (18V) Short Circuit Current (Isc) (A): 12.8 (12A) Open Circuit Voltage (Voc) (V): 21 (21A) Dimensions (mm): 1630x670x35 Maximum System Voltage (VDC): 1000 All technical data at standard test condition AM=1.5 E1000W/m2 Tc=25□

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    We need a design for a system which is integrated with both solar power and mains power with battery integration. No backup batteries needed, just enough to allow for solar supplementation to reduce mains costs. The location has high energy consuming equipment. Minimum output required 25kva. We have 175 200W solar panels with the following specs: MODULE TYPE: ESG-200M (MONO) Peak Power (Pmax) (W): 200 (200W) Production Tolerance (%): ±3 Maximum Power Current (Imp) (A): 11.2 Maximum Power Voltage (Vmp) (V): 18 (18V) Short Circuit Current (Isc) (A): 12.8 (12A) Open Circuit Voltage (Voc) (V): 21 (21A) Dimensions (mm): 1630x670x35 Maximum System Voltage (VDC): 1000 All technical data at standard test condition AM=1.5 E1000W/m2 Tc=25□ We need a full design s...

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    We currently have a working PCB (see image) which needs to be updated. We must add a USB connector and InfraRed transmitter/receiver. The IR circuit is very simple and will be entirely provided. The work is to be done in Altium. The schematics and layout must be updated and parts created if needed, as we want to extract the BOM from the Altium design. More details will be provided to selected candidates. This may lead to many more projects with us.

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    Topology for the CMOS ROIC have to be have to employ GMI (Gate Modulated Input) topology for the system design. HgCdTe photodiodes along with circuit simulators will be designed for the detector model. All the detector information required for the ROIC design can be put in to the circuit model, e.g., the dark current, photocurrent, zero bias dynamic resistance, peak dynamic resistance, junction capacitance, etc

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    Hi! I am an embedded developer. I am working on a project "Indoor air quality Monitoring system". I need a circuit designed for this one. I will be using a microcontroller for driving various sensors. This product is in its RnD phase, as of now will requiring only a circuit, if the circuit works , will be requiring lots of them, will be ordering them accordingly.

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    i need a software which tells me about a stock as soon as it touches upper circuit and then all of its details like market cap price its stock price for the past month and put all this data on excel and hence make a list of all the stocks like these

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    A MACHINE CONSISTS OF WHEELS. I NEED A PERSON WHO CAN DRAW THE DESIGN IN ANY DESIGNING SOFTWARE AND DO SIMULATION OF ROTATING WHEEL IN ANY SOFTWARE. INTERESTED PEOPLE CAN CONTACT FOR PAID WORK. I am uploading the photo of wheel . a electrical circuit diagram also needed

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    Looking for ESP32 and C language expert to edit a code and a circuit design for a simple project that I'm working on.

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    Hello I would like to hear from you if you have experience in analysis of linear electric circiuts. You will have to do some tasks regarding this. an example is attached.

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    We want to Design a Electrical Circuit for on off operation of a machine.

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    I need to design a pcb layout 2 layer with ALTIUM Designer v.20. All components are in bottom layer, except push-buttons, USB connector and OLED. These components are locked on top layer and they must not be moved. I drew a probable size of the circuit (67x15mm), anyway it can be resized by few millimeters. For payment, I would create two milestones with release of first milestone after the placement of all components (without tracks).

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    I want to design a Low offset Comparator circuit with other few specifications. If anyone really know this field please contact me. Thank you.

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    Design me a FPC Cable with both end Connectors of 80 - Pins 2*40P with Pitch of 2.0mm, need to make 2 x Designs 1. FPC Cable with both End 2*40P 2.0mm Connectors (I will provide the Connector Drawing & Foot prints) 2. FPC Cable with both End 2*33P 2.0mm Connectors (I will provide the Connector Drawing & Foot prints) STP File & Foot Prints are Attached. I will send the file to FPC Making factory to order the FPC Example picture is attached also,

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    Need design and working prototype of Arduino or ESP32 for use as programmable/adjustable constant voltage and constant current regulator. Also, output will need to be Transistor/FET controlled for use as pulse out. Circuit should be capable of being powered by typical usb from laptop or alternate power supply, but built using usb-c preferably. Input power should range from 5VDC to 30VDC or higher. Adjustable output voltage up to 30 VDC minimum with 16 bit resolution. Adjustable output current up to 2 amps minimum with 16 bit resolution. Preference is to have a socket for the Arduino (embedded Bluetooth and UART) or the ESP32 (embedded Bluetooth and UART) in the case of failure. Drawings, schematics, and GERBER files should be included as well as a bill of materials, along ...

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    We have been doing research underwater using laser equipment. The current version we are using is a simple on/off laser that is activated by a pressure switch. After using it for quite a while we now want to make laser equipment with logic capabilities by adding a microcontroller. We also want to simplify the circuit into a small PCB that’s easily integrable. Bids will be looked at and assessed on 13th Jan 20:00 GMT. Please send all messages or questions through the Freelancer messaging system.

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    We are looking for a freelancer to design a carrier board for the Arduino MKR series microcontroller. This board will combine components found on the MKR Mem Shield, MKR IMU Shield, and MKR GPS Shield; these designs are open-source and available in Eagle for ready reference. Additional features to be added include a switching power supply, 0-20mA current loop input support, and test pads/external interconnects. Software is already developed, so pin-compatibility with existing shields is preferred. Design goals include: *** Integration of existing modules *** 1) Socket compatibility with the MKR WiFi 1010, MKR WAN 1310, and MKR GSM 1400 modules 2) Integration of the BNO055 IMU module from the MKR IMU 3) Integration of the SD card portion of the MKR Mem Shield (flash memory ...

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    We are looking for a freelancer to design a carrier board for the Arduino MKR series microcontroller. This board will combine components found on the MKR Mem Shield, MKR IMU Shield, and MKR GPS Shield; these designs are open-source and available in Eagle for ready reference. Additional features to be added include a switching power supply, 0-20mA current loop input support, and test pads/external interconnects. Software is already developed, so pin-compatibility with existing shields is preferred. Design goals include: *** Integration of existing modules *** 1) Socket compatibility with the MKR WiFi 1010, MKR WAN 1310, and MKR GSM 1400 modules 2) Integration of the BNO055 IMU module from the MKR IMU 3) Integration of the SD card portion of the MKR Mem Shield (flash memory ...

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