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Design a cheap circuit - LED flash

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.

Beceriler: Elektrik Mühendisliği, Elektronik, Mikrodenetleyici, PCB Düzen, Ürün Tasarımı

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İşveren Hakkında:
( 2 değerlendirme ) Ramnicu Valcea, Romania

Proje NO: #16626348

Bu iş için 37 freelancer ortalamada €160 teklif veriyor

sajjadahmed19

A proposal has not yet been provided

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(53 Değerlendirme)
5.9
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(13 Değerlendirme)
5.1
masov2017

Dear sir. I am an electrical engineer and expert in circuit design and PCB layout. Now I am working as a product designer mainly based on the design of electronic devices such as GPS tracker, toddlermonitor, .. I've Daha Fazla

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(26 Değerlendirme)
5.3
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!

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(25 Değerlendirme)
5.1
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? Daha Fazla

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(10 Değerlendirme)
4.7
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 Daha Fazla

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(7 Değerlendirme)
4.8
xaainulabideen

A proposal has not yet been provided

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(29 Değerlendirme)
4.9
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.

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(16 Değerlendirme)
4.2
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 Daha Fazla

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(14 Değerlendirme)
4.4
albertogg86

Hi Sr. I am electronic engenier, I have experience designing circuits, and PCB (Altium Designer, EAGLE ), I have experience with microcontrollers too (msp430 of Texas Instrment and STM32 of STmicroelectronic). I develo Daha Fazla

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(6 Değerlendirme)
3.8
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. Daha Fazla

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(5 Değerlendirme)
3.9
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 Daha Fazla

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(3 Değerlendirme)
3.2
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.............

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(10 Değerlendirme)
3.0
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 Daha Fazla

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(2 Değerlendirme)
2.2
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 .

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(1 Yorum)
2.3
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 manu Daha Fazla

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(2 Değerlendirme)
1.8
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1.1
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

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(1 Yorum)
0.8
KarelCapek

Hi. I have read your project description very carefully and figured I really love this project. I have rich experience in electrical circuit design as an electrical engineering expert. I am also good at 3D modeling, Daha Fazla

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(1 Yorum)
0.6
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0.6