An extremely affordable, easy to use RF serial data module with great range in an RFM12B surface mount layout.

Provides an out-of-the-box wireless RF serial connection without the need for programming or end-user configuration.

Operates in the ISM bands (868 to 915 MHz) and that means it has a greater range than WiFi (2.4 GHz) units that sport the same footprint. That means it goes through more walls and reaches further. We have had reports of customers sending data over more than 1KM using whip antennas. Comes pre-loaded with Ciseco firmware which enables the SRF to interwork with all other Ciseco RF modules, without any programming or configuration. You provide data one end and it appears on the other. All data packetisation, data checking, etc. is all done for you.

Makes use of Texas Instruments’ CC1111, a low-power System-on-Chip, which sports a micro-controller unit (MCU), memory, a sub-1GHz transceiver, an encryption engine.

Key Features:

Just 4 connections needed for transparent serial data mode (PWR, GND, RX, TX)
Supports network identifier PANID for communications into separate networks if desired
Baud rate selectable upto 115.2 kbaud
Full speed USB controller (12Mbps)
868 to 915 MHz ISM/SRD bands (can support 315 and 433Mhz at less range)
250kbps transfer rate
10dBm (10 mW) power
Low current consumption (RX: 24mA; TX: 36mA @ -10dBm output power)
123 μA in sleep mode; 0.2 μA in deep sleep mode
Facilitates remote Arduino/Xino over-the-air programming
RFM12B footprint
RoHS
CE
WEEE
Made in the UK

Applications:

Industrial monitoring and control
Wireless sensor networks
Wireless alarm and security systems
Automatic meter reading
Home and building automation
Low power telemetry
USB dongles

Ciseco use this module in several products, including:

The Arduino based XinoRF and RFu-328
Raspberry Pi Slice of Radio add-on board
Explorer Plus 5 in 1 USB interface for XBee, XRF, RFu etc.
USB stick
ARF high power radio transceiver

Limitations to use:

The SRF is not recommended or authorised for use in life support, surgical implantation, nuclear or aircraft applications or for any use or application in which the failure of a single component could cause substantial harm to persons or property.

Technical data

Dimensions:

15.9mm wide, 16.5mm long
Similar to RFM12B footprint

General characteristics:

Parameter	Value	Unit	Condition
Frequency	868.299683	MHz	Can be changed in software
Xtal frequency	24.000	MHz
Data rate	9600	Baud	Can be changed in software to a max of 115,200bps
Modulation format	GFSK
Transmit power	10	dBm	maximum
Receiver sensitivity	-110	dBm	At 1.2kB
Receiver filter bandwidth	62.5	kHz
Open air range	300-1000	M
Wall penetration	3 – 5		Estimate for average home, solid walls reduce, plaster board increase

Detailed electrical and environmental specifications

Documentation

Compare the radio modules for range & features - radio comparision chart.pdf
General description
Technical data sheet
Configuring the SRF
SRF troubleshooting

SRF Wireless RF Radio Surface Mount

Brand: wireless things
Product Code:WT-SRF-RF-Radio-SMT
Reward Points:19
Availability:In Stock

रo 2,218.40
Ex Tax:रo 1,880.00
Price in reward points:1880

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SRF Wireless RF Radio Surface Mount

रo 2,218.40

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