Design a cheap circuit - LED flash

€30-250 EUR

Closed

Posted

about 6 years ago

€30-250 EUR

Paid on delivery

The purpose is to create a simple PCB with the following characteristics: 1. the used components should be very cheap; 2. the circuit should be powered by a small battery, with enough capacity to be used for at least 4-5 months under the conditions mentioned below; 2. the shape containing the PCB will be round, with a diameter of maximum 3 cm and as flat as possible (to be integrated in a plastic package together with the battery); 3. the function of the circuit is: a) after the power on, it flashes a LED for a period of 3 months; b) after the 3 months period, the circuit flashes another LED with a different color, for an additional period of 1 month; c) after the new period of 1 month, the circuit flashes a 3rd LED with a different color and keeps flashing the LED until a RESET button is pushed. 4. the duration of the period when LEDs are switched off to be calculated and mentioned considering the point 2. The package containing the circuit will be similar with the attached picture. The winner should provide: -schematics, -list of components and characteristics; -PCB layout; -5 sample circuits.

Electrical Engineering

Project ID: 16626348

About the project

30 proposals

Remote project

Active 6 yrs ago

Looking to make some money?

Email address

Benefits of bidding on Freelancer

Set your budget and timeframe

Get paid for your work

Outline your proposal

It's free to sign up and bid on jobs

30 freelancers are bidding on average €163 EUR for this job

@xaainulabideen

A proposal has not yet been provided

€200 EUR in 3 days

4.9

(73 reviews)

6.6

@BKTechnology

Hello, We have a design team with 3 groups: System Design, Layout PCB & Mechanical. We have +15 years experience of Developing custom electronics, Hardware Design, Firmware & Software and +5 years experience of 3D mode (3D print, CNC and molds). Our key skills are IoT, Embedded KIT, Digital & Analog, High-speed, Memory, WIFI, GPRS, GPS, RF, BLE... We have designed up to +24 layers PCB. Experience designing high density boards include Soc, Flash, DDR, PCIE, SATA, Ethernet, BLE, WIFI, HDMI, USB, QSFP, LVDS...etc. Also, we provide programming for MCU, FAB, ASSEMBLY & TEST services. We can make any prototypes, even support mass production. We use the expertise of the following software: - Allegro/Orcad - Altium. - Eagle - Mentor Pads. - Expedition - Solidworks/ Autocad. - C/C++ - Android, IOS... We provide Service & Support even after completion of the projects,when ever necessary. Please contact me & we can discuss more. Best Regards, BK Technology

€155 EUR in 3 days

5.0

(29 reviews)

6.7

@MUhammadt429i

I have long experience with 8-bit micro-controllers in low power modes and I deliver neat , well documented code . I can design the PCB according to your dimension constraints .

€200 EUR in 5 days

4.8

(39 reviews)

6.0

@sajjadahmed19

A proposal has not yet been provided

€250 EUR in 10 days

4.7

(62 reviews)

6.0

@urbito

Hello there! Hope you doing good! If you still need this to be done, be sure to contact me. Lets make something awesome! Greetings!

€250 EUR in 30 days

4.8

(34 reviews)

5.4

@patobek

Salut ma numesc Mario puteti uita la portofoliul meu si calitatea lucrarilor mele...sper sa colaboram ! I would like to work on your project, I'm very proficient in this field with 8 years of experience, I never left any of my clients unsatisfied, my reviews are proving that. I would be glad to work with you on your project. My portofolio https://www.freelancer.com/u/patobek Best regards!

€100 EUR in 3 days

5.0

(13 reviews)

4.9

@AhmedSobhiSaleh

Hi, I am a professional electrical engineer I know all about circuit, layout and PCB design on cadence mentor and synopsys and have all the required cad tools on my laptop I can finish your task quickly and efficiently, you can see my works in circuit design in my portfolio. Thanks

€222 EUR in 7 days

4.8

(24 reviews)

5.2

@soltracker

How r u?buddy,,,if u award me this project,, i m very grateful to u,,,i have the ability to produce low cost pcb than china, U will feel brotherhood.............

€90 EUR in 3 days

4.9

(74 reviews)

4.9

@saikumaru

Considering the fact that you ll need these fabricated as well, the time was considered. The shipping of components will be as actual and not part of the bid. Question- what is the blink rate you are looking for? Is there enough space to fit in 2 x 3V 2032 size batteries in the box? What is the box thickness? How do you intend to test this device as it is time based?

€222 EUR in 30 days

5.0

(13 reviews)

4.7

@adilme

Hi. I can make your project. pls see my portfolio for electonic circuits and projects.

€34 EUR in 5 days

4.9

(11 reviews)

4.4

@JinDongZhe

Hello,sir. I interest to your project. I`m mastering PCB, circuit design, algorithm design. I hope to see you for our project. Thanks.

€144 EUR in 5 days

4.5

(30 reviews)

4.9

@asbasko

Hello. I can do this project with 5 sample prototypes. PCB and schematic will be designed in Altium Designer. All files with working prototypes i will send you after assembly and testing. We can discuss more details about your project, if interesting.

€110 EUR in 14 days

4.5

(2 reviews)

2.7

@HiteshPatel1194

Hello sir, i read your requirement. I am able to do this job. But only one confusion there, if you want to use low budget component then you can not accomplish your goal of low power consumption of battery. There are many controller those can perform low power operation but with limited power consumption, for your purpose you need to use super power consumption controller, which are little bit costly.

€77 EUR in 3 days

5.0

(2 reviews)

2.5

@wenzhaoxu

Hi, I already read the requirement doc. I think I can do it. I am expert in Circuilt Desgin/Pcb Layout/Micro controller program. I have more than 19 years experiences. Please contact me and discuss it, thanks. Btw, I am Chinese and live in China. I can find the cheapest manufacturer.

€250 EUR in 15 days

2.2

(8 reviews)

5.2

@nykytenko

Hi. I have over 15 years of experience in PCB design. Some my last projects you can see in portfolio. Please see my profile for details. I can do schematic and PCB in Altium Designer with all required files for manufacturing. I can do schematic and PCB design, order PCB manufacturing, build 5 sample circuits and testing it. The circuit will be built on a cheap microcontroller with pico power consumption. Ready to discuss project details.

€190 EUR in 14 days

5.0

(2 reviews)

1.8

@UZelectronics

Hi, We are a team of talented and experienced developers in PCB design. If you could contact us we can send you a quick draft. Please take a look at our profile. Hope to see you soon. Regards UZ

€200 EUR in 7 days

5.0

(2 reviews)

0.8

@anonymoush

A proposal has not yet been provided

€205 EUR in 3 days

0.0

(0 reviews)

0.0

@Aakash9003

Give your project details

€88 EUR in 3 days

0.0

(0 reviews)

0.0

@AhmedAbdalmonam

A proposal has not yet been provided

€55 EUR in 5 days

0.0

(0 reviews)

0.0

@hamidnawaz28

Being and electronics engineer i have a wide knowledge and expertise in the field of circuit design and pcb designs, so it will be great to work on your project.

€30 EUR in 5 days