MSP430 Based Ether-Smart Remote Control System

Karmic design’s intellectual team has come together to deign a circuit that controls the appliances remotely over Internet or Ethernet using a server client approach. The invention is a brainchild of a though that is based on the idea to help hinder the redundant power wastage in the era of power crisis.

Know the circuit:

Any web browser-supporting device like a mobile/ tablet/ PC/
Modem and a router to support the Internet
ENC28J60 breakout board
LM3940IT-3.3/NOPB- 1A low dropout regulator for 5V to 3.3 V conversions.
EZ430- RF2500T module from TI, 2.5 GHz wireless target board- this is the heart of the system and acts as a server.
One more EZ430- RF2500T module acting as a client
Load driver unit including relay switches
Appliances.

Talking about the working of the circuit:

Connect the phone through the Internet, which will act as an Ethernet Remote Control Switch. On first log in, users can check the application status.

The data is transferred from the phone to the Internet via a TCP/IP package. The package will reach the system via a router and modem. ENC28J60 will then store the TCP/IP package in its internal buffer and can be accessed by the MSP430 using SPI protocol. The MSP430 will then analyze the data from ENC28J60 client and reconstruct RF packets and transmits the same to client using the CC2500 RF module.

The RF data will be received by the client and will be processed further to trigger the relay switches based on the specified tasks which is whether to switch on the appliance or to switch it off.

Client will then re-verify the status of the load and sends back the ACK (Acknowledgment) to server. The received data is then embedded into the TCP/IP packets and then the server will send the same packet to ENC28J60.

Data will reach the modem and then it is forwarded to the web client via Internet. The user will get the updated status on web client.

According to the invention the users will be able to have a chance to switch on the appliance or to switch it off.

The advantages of the invention: