RFXCOM RFXtrx433 Especificaciones descargar pdf (Pagina 27)

Chapter 2. Related Work/Fundamentals 20

Figure 2.12.: Three diﬀerent gateways: RFXtrx433, TellStick and CUL.

RFXCOM RFXtrx433

: USB transceiver for 433 MHz systems with an integrated antenna. It

is supported by a great deal of commercial automation software and knows a very large

number of diﬀerent wireless protocols. A built in CSMA-CA mechanism enables collision

detection and automatic resending of lost data packets. Although, this ﬁrst error detection

reduces the risk of error, it does not guarantee error free transmission. In addition, RFXCOM

oﬀers a free software development kit with VB.NET examples.

Telldus TellStick

: Small, compact USB dongle with an external SMA antenna for 433 MHz

systems. It can be controlled by Telldus software and includes an app, which is, however,

only available for Apple users. Internet access is possible through Telldus Live, but it

requires port forwarding and a server. There are three diﬀerent versions of the Telldus

Stick: a simple unidirectional transmitter and two bidirectional transceivers with extended

functionality. However, the top model, the TellStick Net, provides a LAN interface and can

be run without a PC.

Busware CUL

: A small and universal USB transceiver for either 433 or 868 MHz systems. The

centerpiece is an 8 bit Atmel microcontroller (ATMEGA32U4) connected to a TI CC1101

RF transceiver. The ﬁrmware is open-source, thus it can be easily modiﬁed and adapted

to solve speciﬁc problems. CUL is preferably controlled via the open software FHEM which

runs on some routers, for example, the 7390 Fritzbox or Linux systems, for instance the

Rasberry Pi.

WiﬁControl 433: A multipurpose gateway for 433 MHz systems, developed by the author in

the students research project Implementation of an Ethernet gateway for wireless home

automation. It supports Intertechno and HomeEasy EU devices and can be controlled via

USB, USART, SPI, IO and WLAN. In addition, it can act as an interface converter and send

http://www.rfxcom.com

http://www.telldus.se/

http://busware.de/

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RFXCOM RFXtrx433 Especificaciones Pagina 27