ENABLING WORRY-FREE WIRELESS NETWORKING
The Cypress CyFi™ Low-Power RF solution is the highly reliable, easy-to-use 2.4-GHz answer to a wide range of wireless embedded control challenges. It enables designers to create wireless systems without making compromises to overcome the typical risks of unreliable performance, complex implementation, and high power consumption. By combining Cypress’s PSoC® programmable system-on-chip, a CyFi Direct Sequence Spread Spectrum (DSSS) transceiver, and a sophisticated yet lightweight network protocol stack, the CyFi solution achieves levels of reliability, simplicity, and power-efficiency unmatched by other embedded wireless technologies.
WHAT IS THE CYPRESS CYFI SOLUTION?
 PSoC® Programmable System-on-Chip
Flexible. High Integration. Programmable Analog.
PSoC devices combine dynamic, configurable analog and digital blocks and an 8-bit MCU on a single chip, enabling designers to build complete wireless embedded systems with fewer components and shorter design cycles.
 CyFi Star Network Protocol Stack
Simple. Fast.
A preconfigured firmware module that manages a robust star-topology wireless network featuring:
• Up to 250 nodes
• Bi-directional communication
• Active link and power management
• Coin-cell operation
• Simple network commissioning
 CyFi Transceiver
Reliable. Power Efficient.
• Operation in the 2.4-GHz ISM band
• DSSS modulation for interference immunity, enhanced co-location,and extended range
• 1 Mbps/250 Kbps/125 Kbpsdata rates
• 80 discrete channels
• Up to +4 dBm output power
• Up to -97 dBm receive sensitivity
CyFi Advantages
Reliable - Ensure a worry-free link in the 2.4-GHz band
Reliable transmission is a key challenge in any wireless system.
CyFi networks dynamically vary operating channel, data rate,
and output power in real-time to maintain reliable communication
in the presence of interference. This provides the designer with
the benefits of using the 2.4-GHz ISM band (such as worldwide
acceptance) without the reliability pitfalls commonly associated
with other RF technologies in this congested band.
Simple - Design effortlessly and get to market faster
The CyFi solution offers a revolutionary level of simplicity to RF
design. The CyFi Star Network Protocol stack is encapsulated
in a firmware user module, which is literally dragged and
dropped into any PSoC design in the PSoC Designer™ IDE.
Setting up the network, and reliably transmitting and
receiving data, is then a matter of a few simple API calls.
See how easy it is at www.cypress.com/firsttouch.
Power-Efficient - Intelligent low power consumption
Besides very low active and sleep currents, the CyFi Low-Power
RF solution takes a system approach to power efficiency. The CyFi
networks minimize periods of peak current consumption and
maximize sleep. In some cases that means transmitting data as
fast as possible. In others, it means enabling DSSS modulation,
and possibly increasing RF output power to eliminate the need for
retransmission. CyFi networks automatically make such decisions
in real-time—the only low-power RF technology to do so.
Direct Sequence Spread Spectrum (DSSS)
CyFi networks can utilize DSSS to encode data into “chips” before transmission.
Data can then be recovered even if some of these chips are corrupted due
to interference. |
 Frequency Agility
CyFi networks automatically switch channels if overwhelmed by common
sources of interference, such as Wi-Fi®. And because CyFi signals occupy
only 1-MHz of bandwidth, there are five times as many channels to choose
from compared to other technologies like IEEE 802.15.4. |
 Ultimate Reliability
The combination of DSSS modulation, frequency agility, and sophisticated
link management algorithms means CyFi Low-Power RF delivers reliability that
is simply unmatched by any other 2.4-GHz wireless technology. |
 Powerful Yet Lightweight
The CyFi Star Network Protocol stack is surprisingly light weight, occupying
less than 6KB of code space for a node. This frees up more room for
building the complete embedded wireless system in a single PSoC device. |
 A Unique Conservation Strategy
The CyFi solution is the only low-power RF technology that dynamically
switches data rates and output power to minimize power consumption
based on its operating environment. |
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GETTING STARTED WITH CYPRESS CYFI LOW-POWER RF SOLUTION:
EVERYTHING YOU NEED IS HERE
 This intuitive starter kit allows you to evaluate the PSoC programmable system-on-chip and CyFi low-power RF in CapSense™ touch-sensing, proximity-sensing, temperature-sensing, and light-sensing applications. It includes a PC dongle with RF, an RF expansion card with power amplification for long-range applications, a multifunction expansion card, and two battery packs (2xAAA and CR2032). It also features the PSoC Designer IDE and Cypress’s sense and control dashboard software.Integrated Development Environment
PSoC Designer
 The PSoC Designer™ IDE enables the rapid development of
advanced embedded solutions, rich in analog features, powered by PSoC
devices. It features a large library of preconfigured firmware user modules
(including the CyFi Star Network Protocol stack user module) for drag-and-drop
convenience, with the ability to add sophisticated C or Assembly language
code on-the-fly. Quickly setup and monitor a wired or wireless sensor network through this
intuitive visual dashboard. Take advantage of features such as data logging,
data aggregation, alarms, and sensor calibration for nearly any type of sensor
Cypress products also available from Digi-Key:
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