Rf circuit design jobber

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We are looking for a long-term CAD draftsman who will help us develop our products. Right now we are lookin...improve existing casing/box of our product. It is made from sheet metal (1 mm aluminum), cut and bent to shape, and then assembled with rivets. We would like it to be a lighter and easy to install and design you make will be used to make 500 pieces. The main focus of your work in inside the box. Please answer to this question (since we do not read offers that are created by automatic bots, so we ask something that has nothing to do with the business to see if the text is read by a human): is horse bigger than computer. Outside can be as it is. The box contains circuit boards, a power supply and a screen. Please give an example of your pricing and some works you have ...

I've manufactured and patented a musical keyboard wrapped around a pole using membrane switch technology. I would like to create a new thinner keyboard using 3D printer technology. I need someone with expertise in 3D design and materials to create a design based on my old membrane switch flex circuit designs. I envision a rubbery flexible material used in tandem with conductive ink, which can be wrapped around a pole. Here's a one minute YouTube link showing the instrument I've built and play (using membrane switch technology) and then a mockup of the thinner 3D printer version I hope to make-

We are looking for a long-term buyer/purchasing agent with knowledge of electronics. We make prototypes and small batches (10-500 pieces). Our devices include touch screens, single-board computers, batteries, LEDs, and small circuit boards. We are also working on smaller devices. Sometimes you will help us choose prototype parts. In this case, the price of a large batch is not very important, but how to get one or two pieces quickly and reasonably for testing. The main work is to ensure that the parts have the necessary features and that they actually work. For example, we currently need a PowerBank + trigger-USB cable that supports PD/QC fast charging, so that we can get power out of both 5V USB cables and 12V USB cables, with sufficient amperage in both. A test batch (5-20) means ...

need help in designing a circuit for a robotic arm with 5 servos, need an external battery and power

I need a driver circuit design for a 7.5 kW three-phase asynchronous motor.

Schematic and printed circuit design of a board based on ESP32 devkit must v1 with 6 5V TTL compatible output - power from 110VAC -> +5V DC - protection of the power supply unit against overvoltages and overcurrents - EMI filtering - EMBCIRCUIT is committed to delivering source files (Schema, PCB, PNP, BOM)

check photo for details about the project

I need to circuit which i can use the measure ac voltages 1. Range ac 0-300v 2. Range ac 0-10v I just need the circuit.

Want to design a schematic for a pemf machine with good power and an Analog spark chamber but with pwm digital controlled user interface ...adj frequency and adj power ...pulse rate also

We need before and after photos for the following med spa machines and procedures We need photos of the equipment as well Brand: InMode Moprheus8 Lumecca Laser Hair Removal IPL Brand: Lumenis SplendorX Hair Removal Tri-Lift RF Microneedling

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I need an engineer to help me design a circuit board to control my fireplace. Attached is my block diagram for the schematic. I will be doing all the programming myself. I'd like to use an NXP ARM processor. I have not selected the processor yet. I prefer Altium Designer files.

microcontroller programmer who can write/ progamme in ic chip for circuit design to run motors and other peripherals

I need someone expert with circuit schematic design, components selection, block diagram and PCB design. Highly experienced resource is needed. The design will be sent to factory for manufacturing. More details will be discussed in private chat.

Looking for Torrance Based Embedded C Programmer/ Microcontroller Developer/ Embedded Software Engineer/Firmware Engineer for Project Based Work, MATLAB software development Project Based Work. Looking for a Torrance based Embedded C Programmer to develop microcontroller code on Microchip’s SAM3X8E ARM Cortex-M3 or ...good understanding of task scheduling, interrupts, and timing is required. • Requirements/Experience: • Microchip PIC, ARM Cortex-M3 Microcontrollers or similar • Serial Communication • Flash Memory • Process Scheduling/Task Scheduling • SPI and I2C Communication • GPIO Read/Write • Watchdog Timer and other Reliability enhancing features • Analog Circuit, digital logic, displays and motor controller...

hi i have a fully designed circuit in Kikad. my issue wit it that i am very very beginer with circuit designing and i dont understand it at all . i need some one with patience , who can check the design for me from the begining to the end with full detail , until i nderstand what each komponent do , and what the design for. after i understand the design very well i must do a small change on it , i need help very fast please. thanks in advance

Please message me for more details. I will send you a zip file containing all information. Thank you.

I need a driver board using esp32 to control the induction motor to sense the current and protect it from short circuit or over load. also, sense the motor temperature. also, control the speed as VFD. showing the voltage and all data on LCD. the board designed by easyeda and all items from with there numbers.

design a serial multiplexer system that'll allow a single UART to communicate with 6 remote UART. Communication will happen in both directions. We're expecting you to select components, design the circuit assuming 5/3.5 V power-supply already present, design the pcb and write simple C based board support package. End application is NOT expected. The challenge in this project is minimizing cost.

Hello,I am looking for guy who could code me AT32F435CMU7 to act as an alarm for my burglar alarm project. Which would be connected to an ATGM322D GPS module,Buzzer,LED, microphone and ultrasonic sensor module,lora/RF module.i have the schematics and would provide that to you via chat.

...in the field of electronic design and we are seeking a talented and experienced contractor to join our team for an upcoming project. The project will require expertise in electronic design and PCB layout, and you will have the opportunity to help bring our new and innovative product to market. Key responsibilities: Schematic and PCB layout design High-speed and RF design EMI/EMC design Thermal management Power management Design for Manufacturability (DFM) review Bill of Materials (BOM) preparation and many more The ideal contractor will have: At least 5 years of experience in electronic design and PCB layout Proficient in using industry-standard design software such as Altium, Eagle, and KiCad Strong attention to detail a...

I need a circuit design & fabrication of a prototype unit to limit and dissipate high voltage spikes on a 600 VDC, 3.5 kW power system. A small wind turbine on my farm produces up to 3.5 kW, 600 VAC,3 phase power at wild AC frequency (0 to 200 Hz?). A full bridge, 3 phase rectifier takes the wind turbine output & generates 0 to 600 VDC, single phase, single leg, at varying amps, with some noise. If the rectifier output voltage exceeds 300, 400, or 500 VDC (switch selectable), the rectifier engages a load dump heater to dissipate excess power and control maximum voltage output. The rectifier's DC output is fed to a Morningstar Tristar MPPT Charge controller (Model: TS-MPPT-60-600V-48) so as to charge a 48 VDC battery bank. This $2,000.00 Tristar is extremely se...

We need perfection in our circuit(s).

I need a perfect hand to edit silk mask on my 2 layers PCB Gerber, covering the following tasks: 1) Edit my Gerber files silk mask, remove previously written text and add new information. 2) Generate Manufacturing information, drill holes size etc. 3) each layer 3D printable documents to make assembly easy. 4) see if there are any errors in circuit. Remotely access my PC to do the job. 5 PCBs to begin with

Electrical & PCBA design Simple bypass circuit

This is a guitar/bass stomp box with one footwitch and one big touchscreen. The size of the stomp box ideally is small as a mini guitar effect pedal. This device must be able to load a VST effect and operate it. It must have a desktop editor to configure all paramet...Requirements: - Input/output: stereo instrument/line - Midi in/out - USBC to connect to computer and or power - 9v power - phones output Block diagram: Audio input -> analog preamp -> ADA converter -> VST host with VST plugin -> ADA converter -> Analog buffer MIDI: All parameters in VST plugin must be able to be controlled and assigned to touch screen and computer interface Deliverables: 1) Circuit diagram 2) PCB design 3) Part List 4) Assembly instructions 5) Software for stompbox 6) Software...

We had a circuit designed which has a embedded 4 x port USB hub. We had the PCB made, but the USB hub does not seem to be working. None of the LED lights for the USB hub do not light up. Need someone experienced to recheck the schematic and circuit design to find the fault.

You started working on marking finance with 450 rupees and than each month increase rupees peronth and profit gain the company and health care so this project is about face a new version update of apps Electronics engineering is the engineering domain that deals with design and development of electricity powered applications. An electronics engineer makes use of microcontrollers, electronics components with printed circuit boards to develop electronics systems and devices. Bluetooth speakers are the most widely used speakers these days. Their compact size with portability and long battery life have made them a centre of attraction. Well we hereby take Bluetooth speakers to the next level by integrating touchless operation. The Bluetooth speaker allows user to change music by ...

Hello, We are looking into signing Rye house go karting as a new client. Our service will be to create Facebook ads and bring traffic and additional customers to their circuit in Hoddesdon. Would you be able to create and run these ads for us and also could we have an idea of what work you can get done in how much time and cost?

detailed explanation of how to do these on Bread Board and the answer to the questions to the file below and Psipce ORcad simulations

Hello! I am looking for guys to assist me in designing RF based circuit which won't be based on modules but would be based on chipset. I would provide/do most of the circuit build, layout plan etc.. upto 80% , however I need the freelancer to help me in impedance matching (important),filter design , footprint/pcb layout making. Total of 5 boards of such class maybe needed to be designed.

...picture or percentage, LED light indicator for recharge battery, an output port for heater) input port to recharge the battery. each heater is 0.6 ohm and requires 3.7v, 2.61A it will take 7 seconds for the heater to reach 250 degrees celsius and they will be 4 heaters connected the freelancer will be paid once he/she does the circuit and then it will be tested once the circuit passes the test then the freelancer will have to send a PCB board design for it to be manufactured. ...

Hi Elias, I'm looking for someone to help review a noisy isolated flyback circuit. Is this something you might be able to assist with?

Hi Dean, I'm looking for someone to help review a noisy isolated flyback circuit. Is this something you might be able to assist with?

Hi Carl E., I noticed your profile. I'm looking for someone to assist with reviewing a isolated flyback circuit. Is this something you might be able to assist with?

Hi Metin A., I need someone to review a isolated flyback circuit. Is this something you could do?

i want to design a Microbial air sampler with specific board specifications and create a front end LCD panel as well

HARD WARE ELECTRONICS CIRCUIT DESIGNING FOR INDUSTRIAL PRODUCT WHICH CONSISTS OF DIGITAL INPUTS, DIGITAL OUTPUTS, ANALOG INPUT ETC ALONG WITH TOUCH SCREEN WITH SUITABLE CONTROLLER.

I need a timer circuit for a standard off the shelf utrasonic sensor to be designed to read the depth of liquid in an steel container. Steel walls max 3.5mm thick There is no requirement for a display. Just provide a working sensor that will send data ( Depth of LPG in hex or Dec,) back to our IC for our further processing. I have a sample sensor you could possibly use. The details are as attached in the spec sheet. If this is not suitable you are free to select the most suitable off the shelf sensor. The sensor you choose must meet set parameters. Full spec sheet will be provided to the selected engineer, but as a general idea will include: Operating Voltage 3.3-5V Height detection 30mm-1000mm Output method UART Controlled ( Full details provided later but wil include UART Leads/...

This is a HW (hardware) and FW (firmware) project: - You will have to develop the electrical connections, the 3D view and the Gerber of the "" file (I will manufacture 6 boards for my POC). - You will have to also provide the Arduino Code to test each part and functionality of the circuit - I have already ordered all breakout parts listed in the "" file, so you have to stick to those parts and cannot use any other one - Once I receive the PCBs from the manufacturer and have mounted all the breakouts there, we will test the circuitry with the code you provided - In case of issues, we will connect on live chat (Teamviewer, Meet or similar) so that you can check the code and or the connections. I will have 24x7 remote control to my development laptop, so that you ca...

This is a backtesting code that needs some amendments. 1. Following the weekly and 1-week returns, help me add on monthly, 1-month, 3-month and year-to-date returns. 2. Create a cummulative returns graph thro...Following the weekly and 1-week returns, help me add on monthly, 1-month, 3-month and year-to-date returns. 2. Create a cummulative returns graph through my backtest 3. Find the below: # annualised returns graph # yearly returns (calendar returns) graph # max drawdown # length of drawdown (peak to trough) - number of days # recovery of drawdown (trough to peak) - number of days # sharpe ratio (rf rate) 10y tsy yield # s.d & sortino ratio (looking at upside vol) # CAGR # no. of trades for buy and sell # win ratio (how many profitable trades/total number of trades) # ave...

I am looking for a circuit developer who can create the following project. Ultrasonic nebulizer with 48V, 1,8A = 86W, 1,65MHz. Protection against overload 1.8A and thermal runaway typical of BJTs. Protection in case of transducer malfunction and/or short circuit. The dimensions of the board are 30x50mm, 30x75mm if required. There is an old CoolPits circuit that basically works, but needs some optimization. E.g. parallel operation of two transistors to compensate the power dissipation and counteract the thermal runaway typical for BJTs Protection against destruction if the transducer is shorted or missing. Schematic and EasyEDA/ Altrium file can be provided. Components should be as SMD. Driver is in THT. Any other idea is welcome. The result is what counts. Project ...

Would like to build a custom enclosure to hold a motion sensing device and a circuit board with openings for motion sensor, indicator light, reset button access and a micro USB. See attached for detailed design.

I need to design a NFC PCB for business card with LED. I already have a basic circuit, I need to change replace components on them and update the routing according to it

I have a working PCB designed in Altium. Since we will do all future work in KiCAD, this project needs to be converted to KiCAD 6.0. The PCB has a MCU that receives data from two SPI radio modules and relays the data to USB, Ethernet and Bluetooth for further processing on a PC. The PCB also has two RGB LEDs, battery management, barometer, GPS module with active antenna detection, s...and the work of verifying designators and symbols has been started. The projects now look the same on the surface, but much of the details remain to sort out. It's preferred if the Freelancer has the electronics skills and English communication skills to discuss future improvements, also relating to CE certification, and the will to take on future projects with this PCB. Additional bonus for RF ...

In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf,[1][2] denoted E {mathcal {E}} or ξ {displaystyle {xi }}) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Devices called electrical transducers provide an emf[3] by converting other forms of energy into electrical energy.[3] Other electrical equipment also produce an emf, such as batteries, which convert chemical energy, and generators, which convert mechanical energy.[4] This energy conversion is achieved by physical forces applying physical work on electric charges. However, electromotive force itself is not a physical force,[5] and for the current ISO/IEC standards consider the term deprecated, favoring the names source voltage or sou...

During the design of a custom PCB (picture 1) for a private proof-of-concept project, there have arised several questions. This project will be awarded to that freelancer that proposed the best solution for the questions below. Please notice: 1) you have to send your proposal BEFORE being awarded, and I will choose the best solution. 2) Please DO NOT bid or contact if you do not agree with these conditions. ======================== Description: ======================== (1) the board will be using 3 UART ports of a microcontroller, each connected to a UART-to-USB converter (picture 2) and a fourth USB port designed only for supplying power (it may sometimes be connected to a power bank but often will be left unconnected) (2) this board will not have an own fix power source, so ...

...PCB designer to convert an open source Arduino Micro circuit board design to an Arduino Uno design, optimized for flexible printing. The redesigned PCB should maintain the same functionality as the original design, but be adapted to the Arduino Uno form factor and pins. The finished PCB design files must be made available as open source for the community to use and modify. Requirements: - Proficiency in PCB design software (e.g. Altium Designer, Eagle, etc.) - Experience with flexible PCB design - Knowledge of Arduino microcontroller and associated circuits - Ability to create detailed manufacturing files (Gerber, drill, etc.) - Experience converting Arduino PCB designs from one form factor to another Deliverables: - Updated PCB ...

This Logo is for...online Facebook community for business coaches and other consultants, called SYSTEMISED SUCCESS. The community will help them with improving their use of business systems, software etc, to allow them to scale and grow without giving all of their time to the business. If the logo can tell this story, that would be desirable. Use components that relate to systems (cogs, blueprints, system diagrams, circuit diagrams, flowcharts etc) Logo will be used for profile pics and on FB Group banners and artwork. I will need the editable artwork file in PSD or AI file at the time of awarding the prize. If all goes well, the winner may also get future work helping with other branding for the community (banners and graphics etc) Colours can be Navy blue, Dark Grey, white and ...