Max3232 Serial Module RS232 to TTL Module with Transceiver
IndicatorThis module can be used for single chip microcomputer
module of serial port expansion devices such as DVD/router/hard disk upgrade,
3.3 V voltage modules in the STM32 development
Max485 Module (RS485)This
module interfaces an Arduino or similar microcomputer to RS-485. RS485 is
used for Serial Communications over longer distances than direct RS232 or TTL,
and supports multiple units on the same bus (Multi-Drop).Speci..