I have made one voltmeter / ammeter using a pic microcontroller and one robot controller brain (that can talk). The first part works perfectly and I will test the second one coming days.
If it works I will move to the next stage that is to have the results from the first one transferred to the the second one which will spell them, so I will have visual (2×16 display) and audio from the robot brain.
Can I use UART communication for that ?
If so, can I use USB to UART TTL converter using PL2303HX for that ?