I am intending to use a Pro mini (5V) as a component in a PCB I’m designing in Eagle. The board will also have a Bluetooth modem, and I’m intending to use the rx and tx pins on the Pro Mini to communicate with the Bluetooth modem. Will this be a problem with regard to uploading sketches to the Pro Mini? As it appears to me, the FTDI Breakout thingy you use to upload sketches also uses the rx and tx pins.
Try it and see. The upload process may confuse the Bluetooth module, and of course you will not be able to use the Serial Monitor with the finished product.
Why not use SoftwareSerial for the bluetooth??
I think I will just do that. I didn’t want to waste two ports just for uploading sketches, but will just use a couple of analog ports for bluetooth using spftwareserial as you suggested.
On a related note, have you ever seen anyone do a version of the boot loader that would let you upload sketches via BT? That would be nice. I’d love to be able to give people the ability to update the firmware for my product in the field. That won’t be doable unless there was a way to update the sketch via BT.