Thursday, January 14, 2010
Contact Lenses with Electronics! - Check this out - its amazing
Monday, December 28, 2009
2.4 GHz RF module
What does it do:
The RF Module adds a range of enhanced features, including increased operating voltage range, reduced supply current in all operating modes, higher data rate options.The Module provides a complete Controller SPI to antenna wireless MODEMs. The Module is designed to implement wireless device links operating in the worldwide 2.4 GHz ISM frequency band.
The Module has an SPI interface supporting communication between an application MCU and Module. The SPI interface supports single-byte and multi-byte serial transfers using either 4-pin or 3-pin interfacing. The SPI communications interface consists of Slave Select (SS), Serial Clock (SCK), Master Out-Slave In (MOSI), Master In-Slave Out (MISO), or Serial Data (SDAT).
Where can it be used:
- Wireless Keyboards and Mice.
- Wireless Game pads.
- Remote Controls.
- Toys.
- VOIP and Wireless Headsets.
- Consumer Electronics.
- Home Automation.
- Automatic Meter Readers.
- Personal Health and Entertainment.
USP:
- RF based application.
- Battery operated RF based applications.
Technical details:
- Small form factor - Size 20mm x 35mm.
- 2.4 GHz Direct Sequence Spread Spectrum (DSSS) radio transceiver.
- Operates in the unlicensed worldwide Industrial, Scientific, and Medical (ISM) band (2.400 GHz – 2.483 GHz).
- 21 mA operating current (Transmit at –5 dBm).
- Transmit power up to 4 dBm.
- Receive sensitivity up to –97 dBm.
- Operating voltage from 1.8V to 3.6V.
- Sleep Current <1>
- DSSS data rates up to 250 kbps, GFSK data rate of 1 Mbps.
- Auto Transaction Sequencer (ATS) - no MCU intervention.
- Up to 4 MHz SPI microcontroller interface.
- Serial Peripheral Interface (SPI) control while in sleep mode.
Case studies:
- RF Module is used in Active RFID tag for Bill Board Management Systems.
- Used in Electronic Self labelling Systems for products information display.
- Used in ProActive tag for freight Management Systems.
- Used in Wireless Remotes for Interactive Education Solutions in Schools and Training Institutes.
- Used in Wireless Remotes for Television Rating Point Meters.
- Used in Wireless Slates for HP.
- Used in Online Cope and Drag Identifications and Temperature Monitoring Systems for Rail Wheel Factory.
- Used in GPS Clock for Rail Wheel Factory.
Power Line Communication
About the ‘PLC’
Power Line Communication (PLC) is a technology that uses power lines to both supply electric power and as well as to transmit data.
PLC module uses the existing power line as a physical media for communication. PLC can offer a “no new wires” solution because the infrastructure has already been established. Here, the existing alternating current (AC) power wires serve as a transmission medium by which information is relayed from a transmitter or control station to one or more receivers or loads connected downstream from an AC source.
Where can it be used?
- Automatic Meter Reading ( AMR)
- Street Light Control (SLC)
- Home Automation
- Process Control
- Heating and Ventilation Control
- Low Speed Data Communication Networks
- Signs and Information Displays
- Fire and Security Alarm Systems
- Power Distribution management
Features
- 5V input
- 2.4Kbps data rate
- half duplex
- 300ma current – transmit mode
- 90ma current – receive mode
- 3 wire RS232 communication
- Supports CENELAC A band
- Embedded ready-to-go Power Line Carrier Modem module with SMT components
- Small form factor for easy of system integration
- Bi-directional half-duplex data communication over the mains
- Applicable to universal mains voltage and frequency up to 250v, 50 - 60 Hz
- Protocol independent, data transfer transparent to user's data terminals
- High noise immunity and reliable data communication
- Simple serial interface to user's data devices
- Built-in on board AC coupling circuit with direct connection to mains
- Built-in carrier generation and detection
- Multiple units can be connected to the power line of the distribution transformer
- Baud rate of 9600bps ( configurable)
- Selectable TTL and RS232C level serial interface to user's data devices
- Built with industrial grade components for operation under harsh environment
USP
- Our device is easy to integrate into ANY application
- The device is compact and can be customized to suit other requirement
- It is a low-cost device with 2.5 kbps throughput
