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Electronic device to record four separate button presses

£20-250 GBP

Closed
Posted almost 7 years ago

£20-250 GBP

Paid on delivery
To design a circuit layout and component parts of a device that receives input from 4 momentary switches to record via timestamp (DD/MM/YYYY-HH:MM:SS) when each button (red, yellow, blue, green) is pushed. 1. The device should draw as little power as possible. It is intended for the device to be remotely mounted and not rely on an external power source. It is therefore essential that the device can last at least 45 days on a power source that fits within the unit. 2. The device should 'log' data in xx columns as follows: (button_ID, dd/mm/yyyy, hh:mm:ss). 3. The device should offload data in .csv format via bluetooth interface board to mobile app. 4. The buttons should be ([login to view URL] item :32791512455) red, green, yellow & blue. Unknowns: 1. What is possible with storage of data on the device whilst achieving low power consumption, how long can say 1000 records be stored, does this consume power? 2. Keeping costs down but adding some complexity to the Android app is it possible to be able to select data from periods rather than downloading everything and wiping storage? You must specify: 1. Bluetooth interface board. Please use [login to view URL] and provide a part or item ID. 2. Enclosure. Select an enclosure that is suitable as a device ([login to view URL] item: 32696264536) for users to interact with. The enclosure should be secure from the front, for example, this one here can be mounted on a board then fixed to the wall to prevent tampering. The enclosure should be relatively cheap (no more than 20% of the total cost). The enclosure should allow secure mounting of the components inside. 3. Buttons: green, yellow, blue & red. Provide [login to view URL] item ID. You must deliver: 1. Detailed instructions on setting up bluetooth interface board to work with PCB and connect to mobile app for data transfer. 2. Apk for Android 4.0 onwards to connect to device via bluetooth. 3. PCB design and all relevant files (GERBER...), including BOM. The PCB should fit inside the specified enclosure. The PCB should use quality components for connecting parts in an efficient manner, for example, terminal blocks ([login to view URL] item: 32657621421). 4. User Manual to bring together your entire design with instructions where necessary to enable a non-technical person to be able to combine components into a working device. Milestones: each milestone must be agreed mutually before proceeding to the next. 1. Discuss Project and resolve any unknowns or areas that you believe require clarification in order to successfully deliver on the following milestones. 2. Sign off parts specification listed above: enclosure, buttons, bluetooth module. 3. Sign off PCB layout. 4. Sign off Android app UX. 5. Sign off User Manual.
Project ID: 14033264

About the project

26 proposals
Remote project
Active 7 yrs ago

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26 freelancers are bidding on average £315 GBP for this job
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Hi Sir, We have read your project and we can do it for you. We offer our services at very feasible rates. Please discuss with us in details. We are team of developers and engineers professional in designing electronic circuit solutions, pcb designs, database programming such as MySQL etc, software designs and GUI/UI development, android applications, integrating software and hardware and providing complete solutions. In this bid, we offer you our solution at very low and affordable rates based on your desired requirements. we normally follow several checks to ensure the quality of service and products. In this bid prototyping is not included, if at certain point you would like to have prototypes manufactured, we can provide you at minimal cost including courier charges (DHL/FedX etc). We, very humbly deal with our clients and provide technical support to them during all phases of project execution. We are very much looking forward to hear from you in coming days. Cheers, Ahmad Lead Technical Engineer Turktronics Inc. An Internet of Things Company
£400 GBP in 18 days
4.8 (51 reviews)
7.1
7.1
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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, code and PCB design along with gerber files. I will design your project using extra cheap and reliable components that will be beneficial for you if you are planning to make a commercial product.I also have experience in bluetooth modules and android apps development. I can also develop android app for you that will be able to control your project and you will be able to monitor your data. If you wish we can discuss in chat.
£150 GBP in 10 days
4.8 (73 reviews)
7.1
7.1
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Hello Dear, I am an expert with more than 15 years of experience in the field of embedded systems, electronics, prototyping and PCB layout. I have worked alot on 8-bit, 16-bit and 32-bit architectures developing ultra-low power designs with complex computations. I assure you the best solution for your work. Regards Ch
£300 GBP in 30 days
4.5 (63 reviews)
6.2
6.2
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Dear Sir, We are a small R & D company, based in Bulgaria, Europe. We specialize in developing Embed systems based Microchip (Atmel – AVR,ARM) and TI (MSP430) MCPUs and peripheries We realize projects with requirements similar to yours based nRF51822 BLE. See my profile in Freelancer.com If we receive more information about your project, we will give you a real cost and time to implement your project. Regards Valeri T.
£645 GBP in 20 days
4.3 (11 reviews)
5.8
5.8
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FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past projects I have handled and check my reviews for what employers have to say about my work... Can start right now...
£150 GBP in 3 days
5.0 (2 reviews)
4.7
4.7
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Respected Brother,,,, Its me Imad Ud Din, An electronics Engineer from Pakistan, Have completed about 200+ projects involving arduino, MATLAB, pcb designing, circuit designing and App development. Some of the projects are as follows: 1. Digital Stethoscope using arduino. 2. Grid Tied Inverter 3. Automatic car Parking fee collector and car counter. 4. RF based fire extinguisher vehicle. 5. Weather monitoring and storm navigation system. 6. Nextion LCD based motor bike complete monitoring and auto fault adjuster. 7. Working on virtual hands(In progress) 8. Done work on Viola Jones algorithm for face and thumbd recognition. 9. Vehicles complete controlling and status udpdating using nextion LCD touch screen. Along with these a lot of projects are under supervision and by awarding your project, you will find a better accomplishment and extreme friendly and brother hood relationship. Thanks
£20 GBP in 3 days
4.8 (84 reviews)
5.0
5.0
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Hi, There are readily available boards with battery+RGB LED (<50$), only missing is 4 switches & External LED(if required), box and Android App. About us: Micro-controllers we have worked on PIC, STM32, PSOC and AVR. Development kits and instruments available for testing purpose. For PCB designs we use KICAD. C#, LABVIEW, Python for GUI, Controlling or Datalogging purpose. Thanks and Regards, Santosh
£55 GBP in 3 days
4.8 (5 reviews)
4.0
4.0
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Hi, I am an electrical engineer and have been working as embedded systems developer for past 4 years. I have developed systems using arduino, STM32, PIC and raspberry pi. I have created a number plate recognition system, driver fatigue detection system and video surveillance system using raspberry pi and pi cam. These projects were very similar to your project. i can complete your project in minimum time and with excellent quality. Looking forward to your response. Thanks
£500 GBP in 3 days
4.4 (1 review)
4.1
4.1
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Regards, sir. I am very interested in working for you, please check my profile and try to connect it with your project or tasks that you can have in your day to day. I am an extremely meticulous, self-taught and dedicated professional. You can expect from me a full communication 24 hours a day. I'm starting out with the most energy as a full time freelancer and I expect your response back. A greeting.
£500 GBP in 30 days
4.1 (3 reviews)
3.5
3.5
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Hello, I am interested in this project and so wanted to discuss more about it in details. Please initiate a message to me so that we can discuss. Looking forward to having long term business relationship Thanks Chirag
£200 GBP in 3 days
5.0 (1 review)
0.4
0.4
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Hi! I have a great experience in PCB Layout design and manufacturing. Also your job will be done by few people for the same money. What about the android app? It must have some design?
£277 GBP in 30 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
£150 GBP in 3 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
£333 GBP in 15 days
0.0 (0 reviews)
0.0
0.0
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Hire me, am an expert
£150 GBP in 3 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED KINGDOM
Melrose, United Kingdom
5.0
4
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Member since Jan 31, 2011

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