Wednesday, 15 August 2012

Tip of the day: CC2500 Transceiver

The CC2500 is a low-cost 2.4 GHz transceiver designed for very low-power wireless applications.
Introduced by Texas Instruments.

The circuit is intended for the 2400-2483.5 MHz ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency band.

Sunday, 12 August 2012

Tip of the Day: Interfacing: CMOS - TTL

Complementary metal–oxide–semiconductor (CMOS) is having lower O/P current than Transistor-Transistor-Logic(TTL).

So if CMOS is interfacing with TTL then O/P current of CMOS is raised by using Buffer.

Saturday, 11 August 2012

Tip of the day : LED brightness control

Remember, while you making an LED brightness control, you should make the pulses with more than 100Hz. else, the flickering can be seen.

Tuesday, 7 August 2012

Tip of the day : Soldering

Use Flux before soldering to have better result, apply it on your PCB + component's leg + soldering wire.
                                                                                                                                                                                              
 It removes the oxide from the place where you going to apply soldering, which prevents from air gap during your soldering work.

Try it.

Monday, 6 August 2012

Intro to Zigbee

Zigbee is a low power spin off of WiFi.

Bluetooth is made with mobile phones as its centre of universe enabling media transfer at rates in excess of 1 Mbps while Zigbee is built with emphasis on low data rate control system sensors featuring slower data of just 250 kbps.


Zigbee devices can form networks with Mesh, Star and Generic Mesh topologies among themselves. The network can be expanded as a cluster of smaller networks. A ZigBee network can have three types of nodes: Zigbee Coordinator (ZBC), Zigbee router (ZBR) and Zigbee End Device (ZBE) each having some unique property.

There can be only one ZBC in a network