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Hardware suggestions please
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Hardware suggestions please

by AlexJustAlex on Mon Sep 27, 2021 9:38 am

Hi,

I have an upcoming project where I have to capture data from 2 rs232 devices, temporarily (for a month or so and can then be overwritten) save that data (probably to an sd card) and then output that same data on 2 more rs232 ports.

So I need 4 rs232 ports, a suitable microprocessor board and a suitable storage solution.

I have previously played successfully with a Metro M4 Express AirLift, so I'm considering another of these, but all suggestions welcome. If the hardware can be sourced within the UK that would be a bonus.

cheers

Alex

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Re: Hardware suggestions please

by Jeremy97469 on Mon Oct 11, 2021 6:21 am

Have you considered the Grand Central M4? It comes with the Micro SD card slot already there. It also has 8 serial ports (SERCOM).

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Re: Hardware suggestions please

by adafruit_support_bill on Mon Oct 11, 2021 7:50 am

The M4 suggested above would be a good choice .

Note that the serial ports on microcontrollers in general are TTL serial. RS232 uses inverted logic and a higher signal voltage. To communicate with RS232 serial devices you will need an RS232 to TTL converter. SeeedStudio makes a nice one:

https://www.seeedstudio.com/RS-232-To-T ... -2851.html

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Re: Hardware suggestions please

by nbaever3 on Wed Oct 13, 2021 2:36 pm

Jeremy97469 wrote:Have you considered the Grand Central M4? It comes with the Micro SD card slot already there. It also has 8 serial ports (SERCOM).

I have also the same question that did you considered M4?

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Re: Hardware suggestions please

by AlexJustAlex on Tue Oct 19, 2021 2:06 am

Sorry for delayed response, I have been away.
Many thanks for the suggestion I shall be looking into it
Cheers
Alex

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Please be positive and constructive with your questions and comments.