But actually I want to control Two DC motors and also want to control the speed of DC motor that I think can be done with the help of micro controller only.
But I not understand that RF modules work fine with HT12E and HT12D. Then what is problem with AT89C51??
Ok You mean If not want to use Manchester coding the use encoder/decoder......
and if not want to use encoder/decode then use Manchester coding.....
Right ???
Ok You mean If not want to use Manchester coding the use encoder/decoder......
and if not want to use encoder/decode then use Manchester coding.....
Right ???
Yes, the encoder/decode includes Manchester, or something that does the same job. Ignore the Holtek chips, they aren't what you want - but the module manufacturers make specific encoder chips that allow you to feed your normal serial from the 8051. They even sell modules with the chips built-in.
They are simple remote control chips, not for sending data - presumably he wants to send more than they provide, or why bother using a microcontroller?.
But actually I want to control Two DC motors and also want to control the speed of DC motor that I think can be done with the help of micro controller only.
They are simple remote control chips, not for sending data - presumably he wants to send more than they provide, or why bother using a microcontroller?.
They send 4-bit data. They aren't designed for high data rates sure. Using a microcontoller, two nibbles can be combined to send a byte very easily. Much easier than writing a Manchester decoding and encoding program.
In the wireless tutorial, it's referring to the micro-controller pin, and just a general I/O pin, a hardware UART is pretty useless for this application.
They send 4-bit data. They aren't designed for high data rates sure. Using a microcontoller, two nibbles can be combined to send a byte very easily. Much easier than writing a Manchester decoding and encoding program.
But you're adding extra hardware, slowing things down, and drastically reducing functionality. Manchester routines with a suitable packet size are so much more versatile, and require no extra hardware.