Design a simple circuit with 2 x WS2811 LED drivers, but for higher ampage outputs

This project is to create a design and working prototype for a circuit board which uses 2 x WS2811 MSOP8 chips to control 6 x external 5V DC devices. The external devices might be relays, lasers, LEDs - anything which requires 5V DC to operate. The board will also have 2 x SK6805 LEDs, and connections for a diode. It will ultimately be controlled via a device (Arduino, RPi) capable of controlling WS281x RGB LEDs.

The WS2811 is only capable of sinking 18mA per output, and I would like to be able to control devices which require more than 18mA (up to 500mA per output if possible) - also note the WS2811 outputs are low when activated (100% PWM), and high when deactivated (0% PWM), and I would like this reversed for the outputs so that there is 0V at 0% PWM, and 5V at 100% PWM.

This board will be placed inline with other WS2812 LED strips, so the power tracks need to be similar in amps capacity to standard WS2812 LED strips. PCB size and component cost is going to be very important. The circuit should have 3 inputs at one end of the board (5V, Ground, WS2811 Data In) and 3 outputs at the other end (5V passthrough, Ground, WS2811 Data Out) via 2.54 pitch headers, similar to the images attached. The 6 outputs may have 2 pin phoenix screw terminals connected, so enough space should be left for those. No screw terminal connectors are required for the prototype.

I require a working circuit design, BOM, and PCB layout / Gerber files - plus a working prototype board before all monies are released. I can provide some of the components for prototyping (WS2811 SOP8, WS2811 MSOP8, SK6805 LEDs etc). I can also provide a semi-working board and design from a previous attempt at this project for comparison - however there were issues with that board - the RGB LEDs work, but :

1. When affecting the WS2812 outputs, the SK6805 LEDs flash - they should not.

2. The WS2812 outputs do not go from 0V to 5V as they should, they always have voltage.

3. The ground connections are not common, 5V is instead.

4. There is not quite enough room for screw terminals on the outputs

When the design is done and full design files and gerber files released, I will release 1 milestone payment, to cover the cost of ordering the prototype - from pcbway, or other pcb prototype manufacturer. Only when a manufactured prototype board is shown to be working will I release the rest of the payment. If the prototype fails to work, I will not be responsible for paying for more than 1 prototype, so having the design working on a breadboard first is preferred. The cost of the prototype creation must be included in the cost of the project.

Taidot: Elektroniikka, Arduino, Sähkötekniikka, Piirilevyn asettelu, Piirisuunnittelu

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Tietoa työnantajasta:
( 2 arvostelua ) Blackpool, United Kingdom

Projektin tunnus: #30488194

Myönnetty käyttäjälle:

(60 Arvostelua)

12 freelanceria on tarjonnut keskimäärin £186 tähän työhön


Best Circuit Design Expert at your doorstep! Dear Client, We have lots of experience in circuit design with using Arduino, Raspberry Pi so we able to do this project very well. We can provide a circuit and working pro Lisää

£250 GBP 2 päivässä
(33 arvostelua)

Thanks for Freelancer which gives chance to meet you. I hope you are good. I have read your description carefully and understand everything. I have 12 year experience on Arduino and know all principles of it. I'm usin Lisää

£84 GBP 7 päivässä
(23 arvostelua)

FREE OF COST CONSULTATION Dear Client, I am an Electronic Engineer and I will provide Simple Circuit with 2 x WS2811 LED, BOM, and PCB layout, Gerber files, Prototype in a quality and timely manner. Please message me Lisää

£200 GBP 2 päivässä
(3 arvostelua)

Hi there.. I have just read your project description, far as I understand you need to combine the two circuit boards in a single one and add some control like Arduino or Raspberry pi.. I think the Arduino should rece Lisää

£500 GBP 30 päivässä
(6 arvostelua)

Hello, I am an electronics and telecommunication engineer and I am quite experienced with embedded systems and power electronics. I have done a couple of led lighting projects and I checked your requirements I am quite Lisää

£200 GBP 7 päivässä
(18 arvostelua)

I hope you are fine. I am a senior electronics engineer. I have rich knowledge of embedded system design and PCB designing. I have understood the project description, i am 100% sure i can complete your task. I will p Lisää

£20 GBP 7 päivässä
(13 arvostelua)

Welcome Sir I can help you in successfully completing your project. I am an expert in the Arduino field. I have done many similar projects for this work. Send me all the details. Here are some of my work I unveiled an Lisää

£90 GBP 2 päivässä
(12 arvostelua)

Hi Sir, I have gone through your description in detail in which you are looking for a PCB designer to design PCB. I am highly interested to work on this project. I will complete the project within the estimated time pe Lisää

£120 GBP 4 päivässä
(9 arvostelua)

Hi, i understand your project, i can do your project , you can contect me without hasitation, thank you, Shabbir Hussain,

£100 GBP 4 päivässä
(1 arvostelu)
(1 arvostelu)

Greetings, I read your requirements and understand that you want to design a PCB layout for 5v devices. I will make schematic diagram and PCB layout in KICAD which is open source software so you will easily verify th Lisää

£222 GBP 5 päivässä
(0 arvostelua)