I've been looking for one of those, seems like everyone is out of stock.
So I'm thinking of using one of the RS232-TTL models (MOL-AU5121).
I haven't decided which Arduino to use for my project (based on what inputs/outputs I need for everything else), I have an Uno, Leonardo and Mega.
A part of the decision as to which Arduino, then will be using a serial TX/RX pair to communicate with this MP3 player.
Maybe I should post this question as a new thread... But I'll put it here anyway
If I want to attach a device (in this case MOL-AU5121 which is RS232-TTL) to my Arduino, using a serial Tx/Rx pair, am I correct in thinking that:
- with an Uno, I will lose the ability to communicate via RS232 to a "host" computer (for debugging) because I'm connecting pins 0 and 1 to the device.
- with a Leonardo, I will still be able to connect via the USB cable to the host for debugging, because I think the Leonardo uses pins 0 and 1 for Serial1 but does not use them (uses the USB only) for Serial.
- with the Mega, I can use any of the 3 additional Tx/Rx pairs, as long as the device is RS232-TTL and not a 12V RS232?