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Design a board + write some code

$250-750 USD

Completed
Posted over 8 years ago

$250-750 USD

Paid on delivery
The project involves mainly around an AVR (ATTiny series) measuring freq. from an oscillator and adjusting it according to required input from the user. Oscillator bias is done using a current sink that must be stable and accurate. The final application would require modification of a schematic I already have (in Altium) and writing C code for the MCU that will enable control over the said oscillator and adjusting it against user requirements in real time (sample some pots). This will involve a startup calibration procedure (closed loop) against the oscillator to determine the bias current & output freq. relations. Manual adjustments of any calibration parameters in unwanted! The device should be automatic. I will give exact details for whoever wins the bidding but that is the project. Requirements: 1. You will get a schematic in Altium. You need to be able to modify it and layout PCB accordingly. 2. You MUST have experience in mixed signal routing! 3. You must know AVR programming in C and be able to write code other people can understand and modify. No weird variable & function names. Everything should be pretty straight forward. Use GCC. 4. You should be able to make a prototype of this design from the PCB you had designed. I will supply you with the PCB and parts on my expense. You should be able to put this thing together, if not please let me know as I would have to do that. This is a good idea so you can debug the system efficiently. Trust me you will be to debug it :) 5. You must sign an NDA. 6. You must be able to do this work quickly. Code and PCB design in 2 weeks or less. 7. I am available online to answer your question throughout the project. 8. Do a good job and you will have work for some time with me, think of this as a test project. 9. Please bid only if you have confidence you can do this! 10. Thank you for your time!
Project ID: 8513596

About the project

27 proposals
Remote project
Active 9 yrs ago

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Your project sounds interesting and definitely something I think I can handle. Just to get some basic qualifications out of the way... I've become very proficient with Altium Designer over the 6 years that I've been using it as my primary design environment. Since I earned my MS in Electrical Engineering, I've gained 10 years of solid mixed signal PCB design and coding/debugging experience with various MCU's, such as the MSP430, PIC, AVR, etc., as well as some more "high-end" processors. By day, I design biomedical wireless data acquisition system, but I'm trying Freelancer because I enjoy coming up with novel solutions to solve people's design problems. From the project description, I can't tell exactly what you are doing, but it sounds like it involves a Phase Locked Loop of sorts(?). If so, I have a decent amount of previous design experience in that area. Thanks for the consideration and if you have any questions, feel free to contact me directly via email at: [login to view URL] (at) [login to view URL]
$300 USD in 10 days
5.0 (6 reviews)
3.7
3.7
27 freelancers are bidding on average $671 USD for this job
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hi I am an expert electronics designer I can do it for you. Please share the further details of files and NDA to sign in. Please consider me for your job I am waiting for your reply to start the project Regards
$1,000 USD in 10 days
4.9 (247 reviews)
7.9
7.9
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Hello! I can help you right away! Please send me a message! Have a nice day! .
$250 USD in 7 days
4.9 (91 reviews)
7.1
7.1
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Hello, have a great day. We are startup company offering services for prototyping. The desired Project will be completed on time prvided that amount has been released well on time. We will use proteus to simulate the circuit and to make PCBs. Please feel free to contact. Regards, Shahbaz.
$1,947 USD in 10 days
4.5 (52 reviews)
6.9
6.9
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Hi sir can help you working with Altium and Atmel for more of 25 years , please see portfolio if you need samples of works i can send it. Best regards Miky.
$555 USD in 7 days
4.9 (53 reviews)
6.5
6.5
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Hello Dear, we are a team of experts with a combined experience of 50 years. Over the last 10 years we joined hands together to form "coherent technologies". Since then we are involved in offering services and solution from product concept to Engineering and production. We have experts in electronics, PCB layout and firmware development (IAR, KEIL, WINAVR, GCC etc) on 8-bit, 16-bit and 32-bit MCU. I have discussed your project with my team and yes, we are pretty confident in delivering you the solution in low cost and good quality. We have the resources to fabricate good quality PCB. I assure you the best solution over here. Although we are new here and don't have ratings but we have years of experience and have done similar works a number of times. I am often online. If you have queries please feel free to ask. Regards Chaudhry
$555 USD in 15 days
4.8 (46 reviews)
6.0
6.0
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Hello. I able to make that project. I also can produce PCB and solder it. Usually i doing that even if client not ask: this is the best way for debugging (emulators in not always applicable). Altium is not my favorite CAD soft (I prefer to use Proteus and Eagle), but it's not a big problem. With best regards Maxim Bulkowsky
$500 USD in 10 days
4.8 (53 reviews)
5.5
5.5
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Hi, I'm proficient in the use of Altium and the AVR series of processors, mostly as part of an Arduino based project. Many years experience in CAD designs. It would be useful to kow the frequency rang you are generating/controlling to know what methods are available to enable a microcontrller to manage your requirements, I appreciate that this will be in the NDA. My C coding is inherently primative and thus mostly self explanatory. But the apparent demands of your project seem fairly straightforwards. I can produce the PCB and populate it as required. My version of Altium is Designer 10 any files will have to be managed with that in mind. Regards and good luck with your project James Harrison-Smith Sydney Australia
$555 USD in 13 days
4.6 (13 reviews)
5.0
5.0
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A proposal has not yet been provided
$777 USD in 9 days
4.7 (18 reviews)
5.0
5.0
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i have read and fully understood your requirements.. Please open chat to discuss further..... ++++++++++++++====================================+++++++++++++++++++========
$811 USD in 10 days
4.5 (35 reviews)
5.2
5.2
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Dear, I'm electronic engineer with more than 9 years experience. I done many projects with attiny, it is one of my favourite MCU. I pay atention to many parasit effects that can appear on PCB while routing that can be crucial in projects with oscillator. I'm also mechanical engineer and I can represent your project in 3D if you want yo see final device look or how it suits package. All the best, Miroslav
$600 USD in 14 days
5.0 (3 reviews)
4.4
4.4
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Hello, 3+ years of expertise in embedded system design and development. I have worked for NASA for a completion project. Others project includes USB Joystick using AVR (using a mega16), RFID based security system, AVR development board design. Conducted courses for embedded system design. Expertise in AVR, Arduino, RaspberryPi, various sensors etc. Very much passionate about robotics and AI.... Actually tried a startup on this field. That failed! So, I'm desperate to work hard and back it up again! Let me know your comment! *Note, I do my PCB on Proteus! It works great!
$888 USD in 15 days
4.8 (11 reviews)
4.4
4.4
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A proposal has not yet been provided
$555 USD in 30 days
3.5 (20 reviews)
5.9
5.9
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Предложение еще не подано
$250 USD in 3 days
5.0 (4 reviews)
3.3
3.3
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Hello, I would like to help you, have good experience with avr controller, all aspects - development of schematics, pcb, programming, manufacturing. NDA is ok, confidence guaranteed, budget estimate is open to change when having more information about project details. Timeline for the development is good doable, but there may be an issue to get it complete - the postal transfers for components and pcb order can take some time, so I would prefer not to bind to some concrete date. In any case, we will intensively exchange about development process. Please contact when interested. Best regards, Viktor Gotwig, Cologne, Germany.
$750 USD in 10 days
4.4 (1 review)
3.4
3.4
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Hello sir, I am an electronics and communication engineer ,I have about 4 years experience with AVR micro controllers & PCB design on Altium . also I have an experience with PID control algorithm that I think you will need it in your project That's my first trial on freelancer :) but trust me I will never let you down thanks
$277 USD in 14 days
5.0 (3 reviews)
2.5
2.5
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A proposal has not yet been provided
$666 USD in 10 days
4.9 (2 reviews)
1.3
1.3
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A proposal has not yet been provided
$833 USD in 15 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
$666 USD in 25 days
0.0 (0 reviews)
0.0
0.0
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I would like to work. I am confident and believe i would work for best possible output. I have experience using AVR controllers in assembly as well as C and i can use Altium software fairly well. Now i have left my job due to personal issues and ready to have project.
$555 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Your request has been exactly my job for many years. I worked in R&D department and I was project engineer. I drew PCB (with Altium Designer) and wrote firmware. I did build and test prototypes of course.
$777 USD in 6 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of ISRAEL
Haifa, Israel
5.0
22
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Member since Feb 17, 2015

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