Hi!
Normally when we use an MCU that receives information from a USB(named as COM port) that means we use the RS232 pins. But the MCU is already at 5V or 3.3V, in which case why do we need to put a serial to USB converter. When I test this directly, it gives an receives the information with no problem. I just connect the USB RX and TX to the MCU RX and TX. So why do we need a serial to USB converter in between the MCU and USB, I see on various circuits that hey use it?
Normally when we use an MCU that receives information from a USB(named as COM port) that means we use the RS232 pins. But the MCU is already at 5V or 3.3V, in which case why do we need to put a serial to USB converter. When I test this directly, it gives an receives the information with no problem. I just connect the USB RX and TX to the MCU RX and TX. So why do we need a serial to USB converter in between the MCU and USB, I see on various circuits that hey use it?