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small electronic component design and schematic


I need a small PCB designed for a prototype appliance to read data from a GPIO PIN and write it to a microSD card.

The board must use a low-power SMD MCU (to be discussed which, I am ok with Microchip, atmel or NXP), a regulator to 3.3V and a SMD slot for microSD cards. It will be powered from a small form factor 6V rechargeable battery. A switch to turn on the device and leds should be provided to indicate beginning / end of operation as well as any errors. A 16Mhz crystal is also required.

C Software (and source code) must also be provided to interact with a FAT32 filesystem on the SD card. The data read from the GPIO pin must be written to the SD card in text files.

I will provide specs for the GPIO input.

I must be able to prototype the design in-house with a semi-professional reflow oven or soldering station on custom-made PCB. I also have everything needed to build a breadboard prototype.

Please be available to discuss/work together over Skype and speak fluent english. Someone available on GMT will be preferred. Do provide links to similar/past projects as well as brief indication of the MCU of choice.

Kĩ năng: Kĩ thuật điện, Điện tử, Vi điều khiển, PCB Layout

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Về Bên Thuê:
( 13 nhận xét ) CA, Romania

ID dự án: #1660838

5 freelancer đang chào giá trung bình $405 cho công việc này


Hello! I'm Ph.D. in Electronic Engineereing. I'm specialized embedded designs, including SD or microSD file system controlled by microcontroller. I can do what you need with quality and reliability!

$300 USD trong 12 ngày
(71 Nhận xét)

See portfolio

$800 USD trong 15 ngày
(50 Nhận xét)

I have many practical experience in this kind of electronic development (firmware, hardware, pcb design and so on). I would like to help you on this project and I am certain we can reach your objectives.

$550 USD trong 20 ngày
(0 Nhận xét)

The solution to the project involves a microcontroller AT91 series, SPI or SD Mode to send or read data from micro SD card, source code in C, and FatFs (file system for embedded systems i.e. compatible with FAT32). GPI Thêm

$225 USD trong 20 ngày
(0 Nhận xét)

I'm a designer from the US(EST). This looks like a simple design. I should be able to finish this design with promptness and quality.

$150 USD trong 10 ngày
(0 Nhận xét)