Isolated RS422 Interface Circuit Figure 1 shows the circuit diagram of RS422 interface. Connector K1 is linked to the serial port of the PC, power to the PC side of the circuit is derived from the signal lines DTR and RTS. Positive supply is derived from RTS and negative supply from the DTR line. Optical [...]
Another method that helps program development besides a dot LED as the output device is a serial bit. With a serial transmission to a terminal emulator program, developer may then test program running easier than a dot LED. One of my circuit uses PIC16F84 having one bit for sending ascii character with “printf” function. The [...]
ISOLATED FULL DUPLEX RS232C INTERFACE Circuit The isolator is advised to accommodate electrical abreast amid a computer and the accessories affiliated to its consecutive port. This can be all-important back the ambition arrangement works at a absolutely altered voltage level, or back apple loops charge be avoided. Figure 1 shows how the electrical abreast is [...]
