how to control home appliances using mobile?

Shrikant Dasari wrote:

how to control home appliances using mobile?

For home automation? Most common would be the X10 protocol. The Coding4Fun[^]-weblog has some cool articles on the subject. Alternatively, you can look at x10dispatcher[^].

The 2051 features Compatibility with MCS-51 ™ Products, 2K Bytes of Reprogrammable Flash Memory with 1,000 Write/Erase Cycles. The operating range of the 2051 is 2.7V to 6V. Among these features, the 2051 also contains the following features:

* Fully Static Operation: 0 Hz to 24 MHz
* Two-level Program Memory Lock
* 128 x 8-bit Internal RAM
* 15 Programmable I/O Lines
* Two 16-bit Timer/Counters
* Six Interrupt Sources
* Programmable Serial UART Channel
* Direct LED Drive Outputs
* On-chip Analog Comparator
* Low-power Idle and Power-down Modes