MAX232 RS232 to TTL Converter Board
Fully assembled and tested
Work with 5V and 3.3V Power
This converter provides two way RS232 serial communications signal conversion between
the TTL (Transistor Transistor Logic) output
to and from a personal computer RS232 serial COM port.
This converter can be used on any Micro controller - PIC, Atmel or other which has
TTL serial communications that needs to be converted to RS232.
The 3 pin jumper selects power from the PC or an external power source.
JUMPER information:
POSITION 2-3 : board will use power from PC serial port +5V
POSITION 1-2 : board will use External Power +3.3V or +5V
PLEASE NOTE :
If you use External Power on Vcc this must NOT exceed +5 VOLTS and the JUMPER must be placed to Position 1-2.