It gives the possibility to generate several precise baudrates for serial communications. With 12 MHz you introduce small errors that will however be acceptable for hobbyists.
parallel
It gives the possibility to generate several precise baudrates for serial communications. With 12 MHz you introduce small errors that will however be acceptable for hobbyists.
sky waves
110592
A serial wire can be used for several uses. Mainly, it's used for basic communication between different devices. The main advantage is the fact that serial communication can use only three wires. Parallel requires several more, typically eight, or sixteen, plus signalling, and traditionally is faster. But for simple communication between devices, which could be computers or other devices, serial communication can simplify things. Serial communication can also be used for great distances. The telegraph was serial communication. Hence "AT&T"!
ZigBee operates in the industrial, scientific and medical (ISM) radio bands: 868 MHz in Europe, 915 MHz in the USA and Australia, and 2.4 GHz in most jurisdictions worldwide.
In North America, GSM operates on the primary mobile communication bands---850 MHz and 1900 MHz. GSM-1900 is the primary band used in urban areas with 850 as a backup, and GSM-850 being the primary rural band.
write a serial port program.then by shorting transmission and reception pin check whether interrupt has occured or not.....like that we can check serial port communication......... regards Parvathy
Assuming that by serial technologies you mean serial communication, here are some: USB - Universal Serial Bus RS232C - The original serial protocol
he rating for RIMM memory is based on the maximum theoretical bandwidth (in MHz) and included speed ratings of 800 MHz, 1066 MHz, 1200 MHz, 1333 MHz, and 1600 MHz.
MURS Radio provides two way communication radios that are similar to Walkie Talkies. The MURS radios provide a range from 151 MHz to 154 MHz. The radios currently offer 5 channels.
MHz. 1000 MHz = 1 GHz.