The Seeed Studio raspberry Pi RS232 Board v1.0 is a standard communication port for industry equipment. This module is base on MAX3232, which is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply.
Low Supply Current: 300uA Guaranteed Data Rate: 120kbps Meets EIA/TIA-232 Specifications Down to 3.0V
