How to send RS232 12V signal with RS232 Shield?

Hello Community,

I bought a RS232 Shield and I am able to read the data correctly.

Now I need to be able to write data, but I realized that:

    • I cannot get a 10V signal out of the shield (supposedly MAX232 is able).
    • I don’t know which other component I can but to increase the voltage of the signal…

Does anyone has a lead of what could I try/buy/search for this purpose?