I'm using a NP2 and need to communicate to a power meter. This device only supports 300 baud, 7 data bit, even parity an 1 stop bit.
I made some tests and I guess that the lowest baud rate supported from of NP2 is 1200. Is there any trick to run one NP2s serial port with only 300 baud?
If not, is a software solution, like SerialSoft for Arduino, possible? Or has anyone experience with I2C/SPI to UART devices, and are there breakout boards or shields available?