[Jacob Geigle] had a problem. A GPS unit and a Bluetooth-to-serial were tying up all the hardware UARTs on an AVR Arduino project. “Software serial”, I hear you say. But what if I told you [Jacob] ...

So let’s say your using an Arduino in your project. You already have the hardware-based serial interface working with one portion of the project and need a second serial port for unrelated hardware.

I cannot send data from the device to my mobile using UART. Sometimes it already doesnt work without the reset. Sending from the App to Controller always works. Strange is that when I comment out the ...