Single-Board Computer (SBC) with at least 4 UART interfaces with board length and breadth less than 6cm X 6cm

Koh Yi Min Jason's picture

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Joined: May 15, 2019

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Single-Board Computer (SBC) with at least 4 UART interfaces with board length and breadth less than 6cm X 6cm
May 15, 2019 - 6:53am

Hi, I am looking for Single-Board Computers (SBC) that has at least 4 UART interfaces and board length and breadth less than 6cm X 6cm. Is there any of such SBC out there?

Thanks 

Aswinth Raj's picture

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SBC with four UART
May 15, 2019 - 10:58am

There are many microcontrollers (SBC) with 4 uarts. But I am not sure why you need in 6x6 cm. The Arduino mega is a good choice if you need four hardware serial ports. But the board size is bigger, so you have to use the ATMEGA2560 IC on you own PCB.

Also there are very less cases where you will need 4 hardware serial UART. Check out Arduino software serial this will allow you to use serial protocal on normal GPIO pins. MAny people use this as it comes in handy and cheap 

Koh Yi Min Jason's picture

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Thanks for replying to my
May 15, 2019 - 3:17pm

Thanks for replying to my post. I am trying to source for this SBC/SBM as my team is planning to make the product as potable as possible.

Aswinth Raj's picture

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Atmega 2560 or Arduino pro mini
May 16, 2019 - 10:52am

If your team is good with hardware then used the ATMEGA2560 Microcontroller, it had four hardware USART. The IC is availabe in SMD format and hence you can design it on a compact PCB as per your requirment.

If your team is good with programming then you can use the technique called software seiral and make the GPIO pins work as USART ports. In this case you can use ready made hardware like Arduino pro mini 

matthew's picture

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Joined: Jun 05, 2019

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ELB-REV4 has 4 UART and i am
June 6, 2019 - 12:01am

ELB-REV4 has 4 UART and i am using in my projects you can infact customise it as well.