PCB design: 328p + RGB LED array + ESP8266

Please read this carefully if you want me to consider your bid. Bids that do not answer the questions below will be ignored.

I'm looking for someone who can design a PCB with a large number of independently addressable RGB LEDs. I have attached some files with a design reference (vector and image).

The project consists of a multi-digit 7 segment display as well as text and logo.

In the attached file, you can see the outline of where the LED's should go (the grey filled area). These grey areas are where light can go through, with a mask being applied to everything else.

I'm open to suggestions on what to use - MAX7219 is fine or you might have some other ideas due to the large number of LEDs (especially since the LEDs are RGB).


We'd probably like to use this led: [login to view URL]

Ideally this will be a 2 layer PCB unless you think that isn't possible. Ideally there will be a minimum number of vias.

The logo should use approximately 128 independently addressable RGB LEDs. The other elements should be approximately the same density (e.g. 2 LEDs for each element of the 7 segment display).

Ideally whoever does this can also write the basic codebase - calling a REST API and updating numbers on the display based on the result, a couple of example light displays for the logo.


When submitting your bid, please specify:

1. Do you plan on using the MAX7219 or do you have something better in mind or something else you have worked with before?

2. Do you want to write the code as well or just do the PCB design (this can be a separate quote)?

3. What software will you use for PCB design? We use KiCad so if you can use that it's better but not 100% necessary

4. How long do you think it will take you to do the PCB design?

5. Do you think you'll be ok being limited to 2 layers?


Квалификация: Arduino, Схемотехника, Электротехника, Электроника, Разводка печатной платы

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О работодателе:
( 28 отзыв(-а, -ов) ) TSEUNG KWAN O, Hong Kong

ID проекта: #18515827

32 фрилансеров(-а) в среднем готовы выполнить эту работу за $359


Hello How are you? I am an electrical engineer and circuit and PCB designer and have understand your project. 1. I think I can use MAX7219 2. I will also the firmware design 3. I can also use Kicad 4. 3 days 5. Больше

$155 USD за 3 дней(-я)
(24 отзывов(-а))

Dear Sir. How do you do? I have seen your description very carefully and posting to you my idea. If you give me a chance to interview, I'll explain in more detail and I'll do my best for you. I will work hard and ha Больше

$250 USD за 3 дней(-я)
(40 отзывов(-а))

Hello, Have a nice day. We will design, built and ship the prototype of fully working hardware. We will be taking care of firmware development, PCB designing, PCB printing, components sourcing, PCB assembling and en Больше

$2000 USD за 45 дней(-я)
(55 отзывов(-а))

Hi Sir, We use Altium and no Kicad. for code separate quote. we do professional work We are professional engineers and developers who do such projects from the last eight years. We offer you our skills Больше

$350 USD за 3 дней(-я)
(54 отзывов(-а))

Hello sir, I have experience in designing electronics circuits and can make your project. i will make your project completely on my side and will deliver a working prototype. I can also develop hardware compatible and Больше

$200 USD за 7 дней(-я)
(40 отзывов(-а))

Hi, I have worked with microcontrollers(PIC, AVR, ARM) for 3+ years and have enough experience. I think that my professinal knowledge and experiance will provide you with help. I will complete your project in low co Больше

$50 USD за 3 дней(-я)
(31 отзывов(-а))

Hello, Greetings of Peace! Thanks for inviting me to the work. By RGB LEDs, I think we can also use WS2812, which is also a programmable led. and for the remaining, we can use either MAX7219 or MCP23016, dependin Больше

$750 USD за 12 дней(-я)
(27 отзывов(-а))

Hello, thanks for invited me to your project. I would like to take part. Let me know more details. I will be here in the platform waiting for your information. Regards

$250 USD за 3 дней(-я)
(11 отзывов(-а))

Hello! I'm an electronic engineer with solid experience in PCB design. I work with Eagle and Altium. I will ask your questions as best as I can with the information you submited but I need to chat with you to cla Больше

$111 USD за 10 дней(-я)
(23 отзывов(-а))

Hi, I have gone through your project [login to view URL] of all I must say MAX7219 is not good option for RGB [login to view URL] would create a lot of mess and it would require several chips to drive 128 RGB leds and that would al Больше

$380 USD за 8 дней(-я)
(13 отзывов(-а))

Hi, I'm an electronic engineer with more than 5 years of experience in Arduino based embedded systems design. I also have designed custom Arduino boards as well. which your design matches the same profile since you Больше

$650 USD за 17 дней(-я)
(26 отзывов(-а))

1. Do you plan on using the MAX7219 or do you have something better in mind or something else you have worked with before? Ans: Use WS2812B LED's, I am not seeing any benefit of choosing "Semi-Dumb" LED's You mentione Больше

$833 USD за 30 дней(-я)
(6 отзывов(-а))

I would like to answer your questions 1. MAX7219 and HC595 is common shift register IC and used to control LED 7 segments and LED matrix, we can use both of them, depend on cost 2. I can design PCB, write code, build Больше

$1000 USD за 3 дней(-я)
(3 отзывов(-а))

Hi Sir. Your project is very interested to me. I have rich experience on embedded system design. if there are many logo in your project, I recommend 74HC595 than MAX7219. I work on Altium Designer 18.0.1. I'm ready Больше

$300 USD за 3 дней(-я)
(9 отзывов(-а))

1)i should preferred to use ws2812 it will better MAX7219 will make it complicated check [login to view URL] this led it self having a controller and a data communication system so it Больше

$225 USD за 3 дней(-я)
(9 отзывов(-а))

Hi there, 1. Do you plan on using the MAX7219 or do you have something better in mind or something else you have worked with before? Ans:- Yes, We can use the MAX7219. 2. Do you want to write the code as well Больше

$555 USD за 20 дней(-я)
(2 отзывов(-а))

Hi , my name is Anna I'm electrical engineer with 8 year experience in PCB designing (with KiCad, Altium, cadence) and last project I was done is a "smart watch"project for novatronics LLC which is a Russian compan Больше

$155 USD за 5 дней(-я)
(9 отзывов(-а))

yes buddy,,,will make one side pcb for ur RGB logo,,,,,u will feel brotherhood,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

$130 USD за 3 дней(-я)
(28 отзывов(-а))

Hi, Good day! Please see my responses below. 1. Do you plan on using the MAX7219 or do you have something better in mind or something else you have worked with before? A: Since the LEDs are RGB, I'm planning to use Больше

$120 USD за 15 дней(-я)
(4 отзывов(-а))

Hey, I am an expert PCB designer with more than 6 years experience in this field. I've done layout in Altium for high speed and RF circuits. - For your project, since the refresh rate of LEDs is not so fast, I sugg Больше

$210 USD за 10 дней(-я)
(1 отзыв)