1 pcs : M131 - Interface Modules An expansion module of RS232 serial communication with isolation

RS232M Interface Modules 13.2 M5Stack RS232M Interface Modules 13.2 are DB9 interface expansion modules of RS232 serial communication with isolation using the TD301D232H serial port conversion chip + male/female interfaces. These RS232M interface modules 13.2 realize the interface conversion between TTL/CMOS logic level signals and RS232. The F0505S-2WR3 DC-DC power module realizes the electrical and noise isolation function, toggle switch, and coding switch. These modules have a built-in corresponding DC-DC circuit and power input socket to power the entire device.