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Electronics Engineer needed for a simple circuit design

$30-250 USD

Closed
Posted over 4 years ago

$30-250 USD

Paid on delivery
We are looking for someone to take a current design that we have and modify it for another use. The current circuit uses a mercury motion switch to turn on an RF tracking transmitter when motion is detected. This circuit uses an SCR to send power to the transmitter when the mercury switch closes the circuit. We would like to modify the design to eliminate the mercury switch and instead use digital outputs from another device to turn the SCR on and off. The new circuit should then have 4 inputs that can be used to turn the RF tracking transmitter on and off as will be described in our requirements document. After successful testing of the circuit, we will then create a second job to do the PCB design and would prefer to hire the same engineer.
Project ID: 21800158

About the project

24 proposals
Remote project
Active 4 yrs ago

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24 freelancers are bidding on average $164 USD for this job
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Hi I am experienced electronics engineer with more than 11 years of experience. I can do it for you. I have worked on similar projects before. Please share the detail document if interested Regards
$250 USD in 7 days
4.9 (259 reviews)
8.0
8.0
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hello i am a computer engineer,i have masters in computer engineering,i have experience for more than 8 years in arduino and electronics,i can make both tasks for u within 5 days
$140 USD in 5 days
5.0 (30 reviews)
5.5
5.5
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Dear Client, With more than 5 years of experience in PCB Design and Circuit Design I can ensure you quality work along with before time delivery. I have quite an experience in working with all types of sensors. You can also see what other employers like Sanjeev and Markus have to say about my knowledge in Circuit Design and Before Time Delivery If you are looking for a professional experience, you can share me the details via message. Regards Avi
$30 USD in 2 days
5.0 (9 reviews)
5.2
5.2
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Hello, I am PhD Researcher in Electrical Engineering with specialization in Control Systems (Linear and Nonlinear Control Systems). I have Master's degree in Electrical Engineering and Bachelor's Degree in Electronics Engineering. My Area of Specialization is Control System & Unmanned Aerial Vehicles (UAVs) and My Major skills are PCB design, Arduino, c/c++ MATLAB, Simulink, Mathematics, Statistics, FPGA,Numerical Methods, Numerical, Logical and Verbal Reasoning, Modeling, Design and Analysis. I am an professional embedded software and hardware designer and I have done many project using wireless modules like ESP32. I have many projects using ESP32 and other wireless modules like: - ESP32 based smart door locker device - smart rign using ESP32 - OLED display using ESP8266 I have excellent skills in these: * SHL (Numerical+Logical+Vebal Reasoning), Korn Ferry * MATLAB * Simulink * Mathematica * Logisim * Pspice * Quite Universal Circuit Simulator (QUCS) i'll be looking forward to have more discussion with you on the project.
$30 USD in 1 day
5.0 (7 reviews)
4.8
4.8
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I have already experienced on circuit design . and make power electronics circuit with relay and many things with optocoupler with SCR . so I can do your job within a time limit with your satisfaction.
$833 USD in 30 days
4.8 (6 reviews)
4.6
4.6
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Hi. I am very interested in your project. i have rich experience on PCB design and firmware. I think this project is very suitable for me and i am sure i can give you good result . If you award me for your project, you will get good result . please call me.
$140 USD in 7 days
4.8 (3 reviews)
4.7
4.7
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i couldn't find the requirement document so please give me more details or that document so i can find out the problem and give a proper solution
$50 USD in 3 days
4.9 (9 reviews)
4.1
4.1
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Hello, i have read the details provided..please contact me to discuss more on the project deadline and some other few things
$200 USD in 7 days
4.0 (10 reviews)
4.6
4.6
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I am an electronic engineer with 20 years of experience. I've done a lot of projects so far. I have been using Altium for 8 years for circuit design. I can send a lot of samples if you want. If you have any questions, you can ask. Fits the time and budget you expect. Please come back to me.
$75 USD in 7 days
4.6 (4 reviews)
2.9
2.9
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Hi, I am ready to modify your circuit. All the changes will not influence performance of RF transmitter. I am also ready to design PCB for this circuit (including all voltage suppressors, complaint to EMI regulation, etc.) More details on chat. Regards,
$120 USD in 7 days
5.0 (1 review)
1.7
1.7
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I'm a professional Software Engineers and Electrical engineers. with over 10years experience in Universal Circuit, Simulator (QUCS),PCB Layout, Arduino and have been working on Industrial Automatics and Electronics. my fields of interest are Schematic design, Prototyping, PCB, HVAC, LTE system model, Thermal system design, FPGA, Verilog / VHDL, Matlab/ Simulink, Microcontroller, Design, Multisim, SLD Layouts (Single Line Drawing), Hire me for an outstanding and excellent work. I promise to put a smile on your face and give you a wow effect. You can hire me directly from this link: https://www.freelancer.com/u/lizzymoore8543?w=f
$50 USD in 2 days
0.0 (1 review)
0.0
0.0
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I will do:- Simple to advanced Circuit design and analysis using software tools such as KiCAD, Proteus, Altium Designer, Allegro, PADs, and Eagle My package provides the following services - Schematic drawings - Gerber files - Netlist generation - Pcb's - BOM generation (Professional BOM) - 3D Models of the Actual PCB - ECAD Library Administration I will also generate Gerbers on existing PCBs files
$222 USD in 5 days
0.0 (0 reviews)
0.0
0.0
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I will do my work effectively Relevant Skills and Experience I am good in PCB design and circuit bugging.
$166 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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I'm an electrical and electronics engineer with experience designing both analog and digital systems....I would love to help you on this
$222 USD in 5 days
0.0 (0 reviews)
0.0
0.0
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hey there, i am an electronics engineer. i read your project and i am interested in this as i am specialized in rf transmitters and receivers. please message me to give further more details about your project. i will keep good conversation. with best regards, Harsh sharma
$40 USD in 1 day
0.0 (0 reviews)
0.0
0.0
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Have very good experience in digital circuit and have done similar work. The details can be understood once the final doc received
$256 USD in 45 days
0.0 (0 reviews)
0.0
0.0
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Hello! I am a professional PCB designer who can design the PCB board. I have much experience in circuit and PCB design and I can design the PCB board as you request. Please contact me to discuss the project in more detail.
$160 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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Sounds like you need a motion detector. Like when you walk through the frozen food section in a grocery store and the lights come on so you can see the food. I've used one for a different project where we were looking for chemical weapons, but the theory is the same. You use this sensor to interrupt the processor from sleep and do something. When the job is done you go back to sleep to save power. Additional interrupts could be used for your other inputs too. Plus you could create a app for your phone that will let you track in almost real time. Fun project. Well I am licensed in the state of Texas to practice Electronics Engineering anywhere in the US of A. I have 13+ years experience and add character to my design that seems to be missing in my field. I charge $80/hr for my time. Good luck with your design. Let me know if I can help.
$80 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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I'm an Electronic Engineer with years of experience designing, building and repairing digital and analog systems. I specialize in sequential, segmented and timed systems. As well as converters, inverters and so forth. I'm reaching out to you in hopes of fulfilling your request. I am able to provide you with PCB layout designs, as well as proof of completion of my Electronic Engineering program to further authenticate my experience. I wish you luck in your findings and hope to hear from you soon. Sincerely, Matthew Yaguchi
$100 USD in 7 days
0.0 (0 reviews)
0.0
0.0

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Flag of UNITED STATES
Chicago, United States
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Member since Oct 15, 2019

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