I have to interface the UART(RS232) interface operating at 3.3V logic levels (from processor) to RS485 transceiver(SN65HVD1781) operating at 5.0V connected to TTL ...
To connect RS232 devices to other interfaces, such as USB, TTL, or Ethernet, you need to use a converter that adapts the voltage levels, connectors, and protocols. For example, a USB to RS232 ...