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Design a sequential switching circuit

$30-250 USD

已完成
已发布将近 9 年前

$30-250 USD

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job is quite simple, design a schematic & PCB (ready for manufacturing) that will sequentially switch with momentary push button. Each press of button will move to the next 'relay' (could possibly use transistors, as all loads are DC however needs to be rated up to 5A each) and close the previous one. There should be an OFF button also, which is also momentary and shuts off power and returns back to start position. Option for a RESET button, which will return the sequence back to relay 1. Should be expandable, first module will be 4 'relays' and ability to plug in as many additional 4 relay boards to continue sequential switching to expansion as large as want (up to 20 would suffice). LEDs will illuminate to let you know which relay you are at in your sequential movement along them. 1 additional feature is an automatic switch, which is powered by a solar panel - when the voltage drops to a certain level (ie. no sun, and it's night) this will flick a relay to the on position and thus automatically switch on a load. I have some outline drawings of what I am after, which can be provided to the winning bidder. I also have a couple of products that are close to what I want, but just need tweeking to get there. These can be shared in due course. Basically, this is a circuit to replace a physical rotary button, or multiple on/off toggle switches with a single push button (pressed multiple times to switch each stage) with a couple of extra features. Should be 12V powered.
项目 ID: 7654033

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33提案
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活跃9 年前

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hello you want to use a microcontroller in your application? let me know if you are interested thanks
$100 USD 在5天之内
5.0 (11条评论)
3.5
3.5
33威客以平均价$164 USD来参与此工作竞价
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Hello, Have a great day. We can provide you the design of working circuit. We will buld the circuit in our Lab and an online demo via Skype will be given. Further more we can enhance the outputs upto 24 Numbers taht is 24 relays for switching on and off. following will be deliverable from our side. 1. Schematics 2. Bill of material 3. PCB design. 4. Firmware of microcontroller (if there is any). Please feel free to contact. Best Regards, Shahbaz.
$300 USD 在15天之内
4.9 (28条评论)
5.9
5.9
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I am an Electrical Engineer having specialization in Electronics and Control, working as Lab Engineer at FAST National University Pakistan, at Electrical Department. Now a days i am also doing my MS degree in Electrical Engineering with specialization in Control. I have conducted the labs for followings subjects, and also supervised Projects related to these subjects. 1. Control System Design & Modelling (Matlab & Simulink) 2. Digital Logic Design (Verilog, VHDL) 3. Digital System Design (Verilog, VHDL) 4. Computer organization & Assembly Language (8086 processor, 8051 controller) 5. Electric Machines 6. Circuit Analysis and Design etc. I assure you, if you assign your project to me, you surely gonna work with me in future.
$200 USD 在3天之内
4.8 (59条评论)
5.5
5.5
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A proposal has not yet been provided
$155 USD 在3天之内
4.8 (47条评论)
5.7
5.7
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Hello. I am willing to do for you, this work. .
$250 USD 在10天之内
5.0 (21条评论)
5.2
5.2
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I have read and understand your requirements Please open chat window to discuss further ----------------------------------------------------------------------------------------------------------------------------------
$150 USD 在5天之内
4.9 (25条评论)
5.0
5.0
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hi sir i am an expert electrical engineer i can do it for you. i have read the details and ensure you quality work and on time delivery i am waiting for your reply please give me a chance to prove .myself regards
$132 USD 在5天之内
4.9 (43条评论)
5.1
5.1
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HI I'm Chamika , and let me Introduce me and my works with Employers , I'm Electronic Engineer from University Of Moratuwa , Currently I'm Developing UAVs for Production with collaborate with two companies. I have done several Industrial Projects (ROBOTs , UAVs, Bio medical, Consumer Electronics) you can see some of them in my Portfolio as well . Have done several Prototypes to the production .Once we success with Prototyping we have to make sure it can manufacture . So the developer should have the knowledge with Manufacturing as well . If there is any other things to know you can contact me as well Thank you for time spent on me Chamika Gamage Electronic Engineer
$155 USD 在3天之内
5.0 (8条评论)
4.1
4.1
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I have done this kind of uC LESS circuitry for sequential turn on pf parallel power supplies sharing common common output. Schematic,BOM will be provided.
$155 USD 在3天之内
5.0 (5条评论)
3.7
3.7
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Hi, Greetings! I am experienced and Qualified B. Sc Electrical Electronics Engineer with 5 years of experience in Embedded systems and Automation's (200 + Projects) .I have read your requirements and understand your project, I would like to discuss more about your project and start work immediately. For more You can view my resume by clicking https://www.freelancer.com/u/enggrsujad.html. I am confident and sure that i can do this work with very satisfactory and precise output. i have done same projects like this, i will be glad if you give me chance to work for you. I am just a click away. Have Good Day ahead. Regards Engr Sujad
$250 USD 在8天之内
5.0 (9条评论)
3.5
3.5
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Hi, We are a team of engineers with more than 10 years of experience in designing and developing various digital and embedded systems... Currently, apart from our R&D, we help engineering students to complete their academic projects. Also conduct seminars and workshops on Microcontrollers and Robotics... So we have experienced with a lot of Microcontrollers such as PIC, AVR, ARM, Arduino etc. We are also experienced with a lot of sensors and sensor modules.... We are very proficient with PCB desingning tools such as EAGLE, KICAD etc... Please check my completed projects and reviews given by other employers...:-) We really would like to know more about your project, kindly let me know if you are interested...:-) Thank You
$111 USD 在3天之内
5.0 (5条评论)
3.6
3.6
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hi, I have recently done a project exactly like yours. I can share the video with you. Kindly inbox me so i can share:)
$155 USD 在3天之内
5.0 (4条评论)
3.8
3.8
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This can be implemented very cheaply with a small microcontroller. By using FETs instead of relays, the board can be made relatively small, and the whole thing can be machine assembled at a much lower cost than using through-hole relays. I quoted two weeks, but I will probably get the board done in two or three days. I can give you a more accurate quote once I get started with the programming. We can discuss prototypes and testing, but at a rough estimate that should take three to four weeks. In addition, I can recommend a good PCB manufacturer and automated assembly house for small batches (<1000 boards).
$155 USD 在14天之内
5.0 (1条评论)
3.0
3.0
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Предложение еще не подано
$250 USD 在14天之内
4.8 (1条评论)
2.7
2.7
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I have rich experience in electric circuit design and PCB layout design. I think that you can use shift register or cheap microcontroller like PIC16F877 to this. Voltage sensing of Solar panel can be done by using comparator such as LM393, but in this case we consider the historical characteristics of it. Because, while becomes dark, solar panel's voltage is standard, but if it is loaded, its voltage drop drastically. Your project will need voltage stabilizer(L7805CV, etc), shift register or MCU, medium power transistor such as BD139. If you contact me , I will send you my demo.
$30 USD 在3天之内
5.0 (6条评论)
2.0
2.0
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A proposal has not yet been provided
$240 USD 在3天之内
5.0 (2条评论)
2.2
2.2
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Hello, I had a good experience in electronics, embedded system and PCB layout designing. I had professionally worked for different companies in last 4 years. I had also worked for Bitron company. I Had a degree in Computer Engineering from California tech institute. I will complete this layout in just 2 days. If you award this project to me, I will not let you down at any case. Thanks and waiting for your positive response
$150 USD 在3天之内
5.0 (3条评论)
1.8
1.8
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A proposal has not yet been provided
$166 USD 在7天之内
0.0 (0条评论)
0.0
0.0
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I would be glad to complete this project for you. looking forward to hearing from you.
$66 USD 在5天之内
0.0 (0条评论)
0.0
0.0
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Hello, I am a Hardware and Firmware Developer cum Schematic/PCB Designer, having 9+ years of experience. Expertise in Arduino, AVR, PIC, 8051 programming. PCB/Schematic design expertise in Proteus, Altium, Eagle, Orcad. Also having expertise in using Simulators like Proteus, Multisim, PSpice. . So, I can simulate this project. And if u want some changes in the result as per your specific requirement, it can be easily done. I put maximum duration in the bid. I want to discuss further details. Thanks Sapna Surve
$155 USD 在12天之内
0.0 (0条评论)
0.0
0.0
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hey buddy. i am ME student of PG power system. i also worked in industry as maintenance incharge for a year. so i have enough knowledge to crack any complex circuit so you can approach me for this, i have some doubt for this as your explaination is good enough only for basic needs of yours , but what you want is hidden in your explaination, so my bids can vary accordingly your needs.
$72 USD 在3天之内
0.0 (0条评论)
0.0
0.0

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AUSTRALIA的国旗
Belrose, Australia
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