- ??, ??, China
- US $19.20
- Jan 29th
Description: This is a TTL UART to RS232 interface adapter board can be plugged directly into the arduino board, arduino controller to add an RS232 interface. Of course, when using this adapter plate will occupy arduino UART interface, when you use the USB interface to download arduino program, the need to plug in the above first unplug the RS232 adapter plate, or it may be downloaded wrong.