Hi,
I'm starting a new project and I'm looking around for hardware solution.
The project is to store on a SDCARD informations send by 3 UARTS in asynchronous mode.
Each UART send different information so the board need to mix all of them to store everything on a SDCARD.
The UARTS will receive informations at 115200bds at 100Hz.
Is there an powerfull arduino board with multiple UART and an SDCARD slot ?
Thanks you
The Teensy 3.5 or 3.6 might fulfill your requirements. It's not officially "Arduino" but it's programmed with Arduino and the creator of the Teensy has contributed more to official Arduino than all but a handful of people.
If you wanted to stay within official Arduino/Genuino then a Mega or Due plus a SD shield will work.
The Due and Teensy 3.6 are only 3.3V. No input can exceed 3.3V on any pin. The Mega and Teensy 3.5 will handle 5V, if your unspecified UARTS are 5V devices.
You have mentioned the baud rate and the frequency of receiving messages but you have not told us the length of the messages. In other words, how many bytes per second will need to be stored on the SD Card?
...R