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PCB layout and review based on schematics

PLEASE ONLY BID ON STAGE #1 BASED ON RESULTS YOU WILL CONTINUE TO STAGE #2

i designed an ATmega2560 arduino based shield that will fit the arduino "mega pro [url removed, login to view]" from sparkfun (products/10744).

the design is originally made for 5v version but i would like to convert it to 3v3 version

external components that will be controlled by this design

1 air pump

3 air valves

2 sensors

1 RTC clock

1 LCD screen

1 wifi communication element

5 buttons with LED indicators.

max current for entire build 750mA, elements are SMD

datasheets for all elements is available.

if you choose to accept this project you will

STAGE #1 - rework on the schematics

* study datasheets

* remove two level shifting elements (5v-3v3)

* add a 5v-3v3 voltage divider to two analog sensors in the design.

* choose correct voltage regulators based on included datasheets for components

STAGE #2 - pcb layout for the shield.

* layout a 2 layer board (current number of pads ~100).

* generate a BOM (via farnell or digikey) with matching footprints for components

* help choose correct connectors to external components (90deg angle)

* finalize PCB making it ready for PCB manufacturing based on DRC.

* help choose connectors for external components

work is in eagle pcb software,

PLEASE ONLY BID ON STAGE #1 BASED ON RESULTS YOU WILL CONTINUE TO STAGE #2

Kỹ năng: Arduino, Kĩ thuật điện, Vi điều khiển, PCB Layout

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Về Bên Thuê:
( 5 nhận xét ) Tel Aviv, Israel

Mã Dự Án: #4554639

Đã trao cho:

guerila

please see pm

$22 USD / hour
(2 Đánh Giá)
3.2
bivouac001

I can easily provide you the solution. For details please read PM.

$16 USD / hour
(0 Đánh Giá)
0.0
pcbdcs

I CAN DO THIS.

$16 USD / hour
(12 Đánh Giá)
3.9

8 freelancer đang chào giá trung bình $20/giờ cho công việc này

miceli

Hi I can help you on this, I have a huge experience in similar devices. Regards, Michal Eliasz

$16 USD / hour
(12 Đánh Giá)
5.6
GlobalElectronic

Professsional PCB designer offer you help.

$21 USD / hour
(6 Đánh Giá)
4.1
shahbaz1980

hello check your PMB

$24 USD / hour
(8 Đánh Giá)
3.7
amitchougule90

hi, I have good knowledge In Embedded System and Design, I would like to do this project.

$22 USD / hour
(0 Đánh Giá)
0.0
jigs040

i have good experience on it and i am also professional schematics and pcb designer so you can contact me for further discussion.

$22 USD / hour
(0 Đánh Giá)
0.0
sijosv

I can do this project.

$24 USD / hour
(0 Đánh Giá)
0.0