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.