Read and write automatic control RS485 TO RS232(3.3V TTL Logic level) converter
Operating Voltage : DC 3.3V
Logic level : 3.3V LvTTL Logic level
RS485 BUS IC : SP3485
Read and write automatic control IC :SM74HC04
7x 2.54MM pin,mini size.
Size(Does not include pin) : 17.9x11.7x2.8mm(very small)
Weight :1.2g(Very light)