hi all, I am new in town. currently I was doing a project that using pic16f873a micro controller to connect to the computer. but i am facing problem with the connection on the serial cable, so as the program that link to the micro controller. Can any one recommend me a way for the connection on the serial cable by using MAX485 or RS232?
Thanks for the comment.
thanks for the advise on the RS 232 board, but a having problem with the 20MHz crystal as i only has 4MHz crystal. will it be ok as i use 4 MHz crystal with 15pF capacitors?
thanks for the advise on the RS 232 board, but a having problem with the 20MHz crystal as i only has 4MHz crystal. will it be ok as i use 4 MHz crystal with 15pF capacitors?