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Design Microcontroller Code

Devise a communication protocol/method to communicate to between devices, through RS232. There is one ‘master’ and up to two slaves, which communicate two ways. Slaves will have unique addresses. Code needs to be compatible with ATMEL microcontrollers as this is what will be used.

Communication is simple and will take the following form;

• Master to slave

o Turn output 1 to 8 high/low

• Slave to master

o Status of X input is high/low

The command sent may have some form of character identification to determine the type of command sent, before having input/output identification and then finally high/low status.



o Where “OUT” is output command from master to slave

o X is output number

o Y is high/low status


o Where ‘FUS” is input status from slave to master

o X is input number

o Y in high/low status

Kĩ năng: Arduino, Kĩ thuật điện, Điện tử, Vi điều khiển, Verilog / VHDL

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Về Bên Thuê:
( 0 nhận xét ) Australia

ID dự án: #15669172

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There is something wrong in the specifications. While protocol for communication ( reliable) can be done, connection architecture appears to be wrong. Need to discuss your overall objective Relevant Skills and Exper Thêm

$333 AUD trong 3 ngày
(1 Nhận xét)

26 freelancer đang chào giá trung bình $188 cho công việc này


Hi I hope you are doing well. I have expertise in AVR Micro controller programming and RS232 communication. I have understood your project requirements and I have few questions regarding your project. Looking Forw Thêm

$250 AUD trong 4 ngày
(45 Nhận xét)

I can code this communication protocol. I have worked on uart, I2C , SPI and many other communication protocols. Relevant Skills and Experience Electrical engineering Proposed Milestones $200 AUD - required work

$200 AUD trong 3 ngày
(38 Nhận xét)

Have experience with such kind of Coding and I have already implemented in one of my wifi based System. Can get your project ready in a day. Relevant Skills and Experience Embedded systems programming Arduino Atmel P Thêm

$250 AUD trong 3 ngày
(8 Nhận xét)

Your OUTXY in the example should include a flag for slave address (0 or 1). If using rs232, will need an additional status line beside tx/rx to avoid collision when 2 slaves send data to master Relevant Skills and Exp Thêm

$220 AUD trong 5 ngày
(17 Nhận xét)

Hello, I am a professional designer of data acquisition and control systems (both hardware and programming, including AVR microcontrollers & Arduino), and I could help you with your design. Relevant Skills and Experie Thêm

$200 AUD trong 3 ngày
(4 Nhận xét)

Hello, Deep is here from India. Basically I'm Embedded System Developer. I understand your requirement. I have experience with ATMEL microcontrollers (Atmega8-16-32-328-128-2560, XMega, ATtiny). Basically UART protoc Thêm

$100 AUD trong 5 ngày
(8 Nhận xét)

i have worked in many projects that force me to develop some protocols for communication. also i am mainly working in cryptograpghy so it my work to create some protocols to open sessions . Relevant Skills and Experie Thêm

$155 AUD trong 8 ngày
(1 Nhận xét)

I have more than 10 years of en experience in the digital design and in the interface protocols of course. So I can do this task well. Соответствующие навыки и опыт FPGA/ASIC design, Verilog/VHDL design, The sufficien Thêm

$222 AUD trong 5 ngày
(2 Nhận xét)

I Believe it's simple I/O expander Relevant Skills and Experience I have experience in ATMEGA Processors use Assembly, C, and Arduino Code depending on situation Proposed Milestones $83 AUD - Complete As i said befo Thêm

$83 AUD trong 3 ngày
(3 Nhận xét)

i have been completed many project on Atmel controller and you can it in my review. so i can do your job.

$255 AUD trong 30 ngày
(2 Nhận xét)

i have a good knowledge about microcontroller programming and have done number of projects using microcontroller .i have worked on number of sensors and modules and soon. Relevant Skills and Experience 4 year of exper Thêm

$155 AUD trong 3 ngày
(2 Nhận xét)
$155 AUD trong 3 ngày
(0 Nhận xét)

A proposal has not yet been provided

$55 AUD trong 1 ngày
(0 Nhận xét)

Use UART to design communication link between a master slave daisy chain to poll slave uC and check Pin/Port input status Relevant Skills and Experience Embedded Systems designer, Atmel AVR assembly and C designer Pr Thêm

$111 AUD trong 5 ngày
(0 Nhận xét)
$155 AUD trong 7 ngày
(0 Nhận xét)

I have 6 years experience in designing circuits of pic controller..where in various projects I used serial port as rs422 and rs232..I used ports to send data to PC by usb also, and I m pretty sure that I can deliver th Thêm

$172 AUD trong 15 ngày
(0 Nhận xét)

Communication Protocol, development is required. That's what we understand, if not please elaborate more with details. Relevant Skills and Experience We have developed several communication protocol. Proposed Milesto Thêm

$200 AUD trong 6 ngày
(0 Nhận xét)

A proposal has not yet been provided

$166 AUD trong 2 ngày
(0 Nhận xét)
$155 AUD trong 3 ngày
(0 Nhận xét)

Read your requirements and interested in your project I can do this for you, Embedded software professional (2 + year) Embedded applications design (Embedded C) on so many chip Chipset: 8051, Atmel, ARM7, AMR corte Thêm

$222 AUD trong 10 ngày
(1 Nhận xét)