RE: Custom Built Modem - SIM800L GSM/GPRS & MAX 3232 RS232 UART TTL (In pictures)

[Kiptoo Kibowen]

Jambo,

For those who are searching for modem that connects to 9 pin serial port (RS232) but can't seem to find them locally - this custom built solution that may be of interest to you :)

SIM800L is a GSM/GPRS single board and MAX 3232 is UART TTL RS232 module that connects to SIM800L and allows for connecting a 9 pin serial cable from the custom built modem to 9 pin serial port on computer.

SIM800L has two connectivity options - USB & RS232 serial

> USB using UART TTL USB cable

> RS232 - using UART TTL RS232 module

Configuration and testing done using Minicom & Bash on Slackware Linux 15 :)

Enjoy!

Regards,

Ibrahim Kiptoo Kibowen

Tel: +254 726430830

Email: tkib...@gmail.com

[Benson Muite]

On 05/01/2024 04.19, Kiptoo Kibowen wrote:
> Jambo,
>
> For those who are searching for modem that connects to 9 pin serial port
> (RS232) but can't seem to find them locally - this custom built solution
> that may be of interest to you :)
>
> SIM800L is a GSM/GPRS single board and MAX 3232 is UART TTL RS232 module
> that connects to SIM800L and allows for connecting a 9 pin serial cable
> from the custom built modem to 9 pin serial port on computer.
>
> SIM800L has two connectivity options - USB & RS232 serial
>> USB using UART TTL USB cable
>> RS232 - using UART TTL RS232 module
>
> Configuration and testing done using Minicom & Bash on Slackware Linux 15 :)
>

Nice work. Maybe give a talk or write a blog post on the design and
fabrication.

> Enjoy!
>
> Regards,
>
> Ibrahim Kiptoo Kibowen
> Tel: +254 726430830
> Email: tkib...@gmail.com
>

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[Kiptoo Kibowen]

:)

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