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Circuit design - temperature controller

£20-250 GBP

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已发布超过 7 年前

£20-250 GBP

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Hi, I am looking for a freelancer that is able to design for me a Circuit with the followings functions: Requirements: - 6 Analog inputs - 2 Temperature sensors ,1 humidity sensor and 3 variable resistors (designer to choose the values) -12 Digital inputs (13DI including enable) at 8V to 15V DC -9 Digital outputs that can drive small electromechanical relays -One monochrome LCD that can draw a graph of temperature -(designer to choose it) -There are no dimensions restrictions or specific parts that need to be used -There are no restrictions on power consumption -Power supply to be at least in this range - 8V to 15V DC -Temperature sensors to be able to measure between -40 +70 degree Celsius -Humidity sensor -no restrictions -Designer to propose few Temp and Humid sensors -Main Restriction of this project is that the product to be very very cheap to mass produce This is the first stage of my project so I need only the Circuit Design, to be able to test it on bread board. Second Stage will be PCB design, that will be a separate project.
项目 ID: 12148688

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活跃7 年前

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Hello, What kind of MCU do you want to use for the project and what is your price target for the MCU. We can talk more detailed over the chat. All the BEST, Ali ŞERBETÇİ
£150 GBP 在10天之内
5.0 (36条评论)
6.5
6.5
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we are an electronic design company in Nanjing [login to view URL] have high-efficiency teams and skilled [login to view URL] had done similar products that Used for water purification machine
£150 GBP 在5天之内
5.0 (3条评论)
3.5
3.5
39威客以平均价£204 GBP来参与此工作竞价
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hi sir i am an expert electronics engineer with more than 8 years of experience in this field. Please have a look at my profile I assure you quality work and on time delivery I am waiting for your reply to start Regards
£150 GBP 在5天之内
4.9 (235条评论)
7.9
7.9
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Greetings, I have good expertise with circuit design, uC, LCD interfacing, sensor interfacing. Please see my profile for details. I can deliver the working design to you along with any support required to make it working at your end. We can discuss what would be the best way to do it e.g. I building the circuit at my end - and then shipping it to you, or you replicating it, OR you building and testing it and I supporting remotely. Look forward to hear from you. T & R Alok Pugalia
£400 GBP 在10天之内
5.0 (8条评论)
7.0
7.0
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Hello dear I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit and code. i will also assist you so you will be able to make that on breadboard for testing. I will design your product using extra cheap components that will be beneficial for you if you are planning to make a commercial product. I can also develop android apps that can control the hardware. if you wish we can discuss in chat.
£200 GBP 在7天之内
4.8 (48条评论)
6.8
6.8
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I can do for you on a suitable controller. I also used in his work as a 4 lines LCD and graphical OLED. I am ready to discuss with you the best solution for this project.
£200 GBP 在10天之内
5.0 (41条评论)
6.4
6.4
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Hi, I hope you are doing well. I have expertise in temperature controller projects. I have understood your project requirements and I can execute it in less possible time. Looking Forward, Khawaja
£178 GBP 在3天之内
4.8 (70条评论)
6.7
6.7
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Hello, Have a great day. we will fabricate the PCB and ship you fully working circuit. Our deliverable will include all of the design data and source code of micro controller. Please feel free to contact us. Best Regards, Shahbaz.
£500 GBP 在15天之内
4.6 (46条评论)
6.9
6.9
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Hi sir We are expert in circuit designs, pcb layouts, programming and we have delivered similar circuits to our candidates before. We offer you our solution at very affordable and comparatively low rates. Please discuss in detail. Let me introduce my team to you and what we offer to our clients. We are team of expert engineers and developers who are sound experienced in embedded systems (arduino + other microcontrollers), programming, circuit designs, electronics, product designs, pcb layouts, database management, MySQL, android apps etc. We will deliver design and code, if you want us to send you prototype, you have to pay additional charges of prototyping and courier such as DHL/FedX etc. We are very friendly in nature and will help our clients during and after projects completion. We are flexible in communications and rates. Very much looking forward to hear from you on this in coming days. Regards, Ahmed Lead Technical Engineer Turktronics
£98 GBP 在9天之内
4.9 (46条评论)
6.7
6.7
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Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent high frequency transformers design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.
£333 GBP 在7天之内
4.9 (53条评论)
6.6
6.6
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hi i am an electrical engineer. i have vast experience related to circuit design and micro controller programming. i have done many embedded system projects. i have hardware experience micro controllers. let me know if you are interested. we can discuss further on chat.
£300 GBP 在3天之内
4.8 (31条评论)
6.3
6.3
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Hello Dear, I know by the time my bid would land in your inbox you would already have received several offers for your project. This is a very competitive site. However I know the work required and we are experts in it. I would offer you the lowest possible price with the best quality. Hire me Regards Ch
£50 GBP 在3天之内
4.4 (56条评论)
6.1
6.1
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Hi, I have experience in Arduino developing. I have worked similar projects. PCB will be designed with Eagle PCB I can do your project. Regards, Slavi.
£508 GBP 在15天之内
5.0 (12条评论)
5.2
5.2
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Hi! Im an electrical and electronic masters graduate of UWE. I have the experience of programming in C/C++/Assembly/Arduino/PIC C/MikroC/MATLAB for more than three years. I also have the knowledge and experience of ELECTRICAL AND ELECTRONICS circuit analysis and design. I also have experience in embedded systems using microcontrollers like PIC, ATMEL, ARDUINO and most of the other types. I have made different kinds of devices varying from radios to drones and more. I am very keen to work on implementation projects I also have studied Artificial intelligence. Im very thorough with subjects like Neural networks, Fuzzy systems, Genetic algorithms and Expert Systems. I have done BCS (British computer society) diploma level. I have the knowledge on PHP/HTML5/mySQL for website development. I have completed many freelancer assignments successfully. If you are interested in hiring me, please send me a message. I have made a lot of reports in the recent past. I have good experience in using Microsoft office softwares like Word, Excel and Powerpoint. I can write reports of any length without mistakes. Thank you!
£122 GBP 在3天之内
4.9 (19条评论)
4.5
4.5
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Hello, What MCU do you have in mind? Also, a breadboardable circuit will not necessarily be the cheapest to mass produce. Are you planning on running the circuit at -40C or just being able to read a remote sensor at -40C with the board somewhere else? Same with the 70C. A display that can handle those extremes will not be cheap, and with 70C being the limit of commercial grade components, industrial or automotive grade components will need to be used. Will you need the device to communicate with anything? For costing, how many units is the target? 1000, 10000, 100000? Best regards, Stuart Borden.
£250 GBP 在30天之内
5.0 (6条评论)
4.3
4.3
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Extended experience in hardware design and in specific on embedded solution to target mass production. I work with Altium Designer software. Hope this will be OK.
£138 GBP 在7天之内
4.5 (9条评论)
4.5
4.5
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Expert electrical engineer, more than 25 years of experience. Schematic and PCB expertise: completed more than 40 project.
£277 GBP 在10天之内
5.0 (2条评论)
3.9
3.9
用户头像
Thank you for reading this proposal . We have done similar interfacing and design projects in the past and have sufficient experience to complete yours . Please Review our profile and text us back . Have a great day Best Regards TaimoorAli
£66 GBP 在4天之内
4.7 (9条评论)
3.8
3.8
用户头像
A proposal has not yet been provided
£222 GBP 在5天之内
5.0 (3条评论)
3.2
3.2
用户头像
I am an electronic engineering student and in the electronic III class I did a temperture sensor using a LM35. It is a device that mesures the temperture so it can output a voltage depending on the celcius grades, between -40° to 150 °, I turned on a fan cooller when the temperture was high and it turned off itself when the temperture were lowing.
£100 GBP 在10天之内
5.0 (4条评论)
3.1
3.1
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My experience surpasses what is necessary for your project. With me you will be more than compliant. Please take a moment and check my profile: https://www.freelancer.com/u/delcti.html
£222 GBP 在10天之内
5.0 (1条评论)
2.9
2.9
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I had done many thing in electronics and embedded. Currently Develop industrial iot product which is now in production phase. Which haveing Digital input digital out put concept. i will provide you pcb schematic of your image discription. and if you want to read the value of that thing and just want to print it lcd display i will it in £450.
£277 GBP 在7天之内
5.0 (1条评论)
0.7
0.7

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