SILABS AAA Si4010 ezradioâ® remote control demo kit userâ Datasheet

Si4010-RC-DEMO
Si4010 EZR ADIO ® R EMOTE C ONTROL D EMO K I T U SER ’ S
G UIDE
1. Purpose
Thank you for your interest in Silicon Laboratories’ EZRadio Remote Control Demo Kit. The Silicon Laboratories
EZRadio Remote Control Demo Kit (P/N EZR-LEDK1W-XXX) contains everything you need to familiarize yourself
with and evaluate the Si4010 RF SoC transmitter and the Si4355 receiver. The kit has three versions: one for the
434 MHz band, one for the 868 MHz band, and one for the 915 MHz band. The key features of the demo kit are as
follows:
The
key fob demo board has five push buttons and one LED output.
receiver demo board has four LEDs to display received key fob commands.
The provided software pack contains all the documentation and files needed to develop a user application.
The kit supports the use of the Silicon Laboratories Integrated Development Environment (IDE) for
software debugging and the use of the Keil C compiler, assembler, and linker toolchain.
Contains demo applications using API functions and the key fob demo application.
The
1.1. Kit Content
Table 1. Kit Content
Qty
Part Number
Description
EZR-LEDK1W-434
EZRadio Remote Control Demo Kit 434 MHz
1
4010-KFOB-434
Si4010 Universal Key Fob 434 MHz
1
4355-LED-434-SRX
Si4355 RFStick 434 MHz EZRadio receiver board
1
MSC-PLPB_1
Key Fob Plastic Case (translucent grey)
2
AAA
AAA alkaline battery
1
CRD2032
CR2032 3 V coin battery
EZR-LEDK1W-868
EZRadio Remote Control Demo Kit 868 MHz
1
4010-KFOB-868
Si4010 Universal Key Fob 868 MHz
1
4355-LED-868-SRX
Si435 RFStick 868 MHz EZRadio receiver board
1
MSC-PLPB_1
Key Fob Plastic Case (translucent grey)
2
AAA
AAA alkaline battery
1
CRD2032
CR2032 3 V coin battery
EZR-LEDK1W-915
EZRadio Remote Control Demo Kit 915 MHz
1
4010-KFOB-434
Si4010 Universal Key Fob 434 MHz
1
4355-LED-434-SRX
Si4355 RFStick 434 MHz EZRadio receiver board
1
MSC-PLPB_1
Key Fob Plastic Case (translucent grey)
2
AAA
AAA alkaline battery
1
CRD2032
CR2032 3 V coin battery
Rev. 0.2 6/12
Copyright © 2012 by Silicon Laboratories
Si4010-RC-DEMO
Si4010-RC-DEMO
Figure 1. Si4010 Universal Key Fob Board and Plastic Case
(P/N 4010-KFOB-434 and MSC-PLPB_1)
Figure 2. Si4355 RFStick 434 MHz Receiver Board (P/N 4355-LED-434-SRX)
2. Operating the Demo
The Si4010 key fob transmitter and the Si4355 RFStick receiver are the transmitter and receiver devices used in
the one way link demo. This transmitter/receiver pair can be used to evaluate the capabilities of the Si4010
transmitter and the Si4355 receiver.
The first step is to insert the CR2032 battery in the battery holder on the 4010-KFOB-XXX demo board and then
place the board into the plastic key fob case. Next, insert the two AAA batteries in the battery holder on the 4355LED-XXX receiver board and turn it on by setting the S6 switch to the “Battery” position. LED4 will light
continuously indicating that power is on and the SRX firmware is running.
When a button is pressed on the key fob, LEDs flash on the receiver boad according to which button was pressed.
In the next table, buttons are named according to their position when the key fob is held with its LED facing
forward.
Table 2. Key Fob Buttons and Resulting LEDs
2
Key Fob Button Pressed
RF Stick LED Flashed
Left Button
LED1
Middle Button
LED2
Right Button
LED3
Rear Button
LED1 + LED3
Front Button
LED1 + LED2 + LED3
Rev. 0.2
Si4010-RC-DEMO
3. RF Parameters
The demo kit uses the following RF parameters according to the kit’s frequency band.
Kit Part Number
Center Frequency
Deviation
EZR-LEDK1W-434
433.92 MHz
 59 kHz
EZR-LEDK1W-868
868.30 MHz
 119 kHz
EZR-LEDK1W-917
917.00 MHz
 120 kHz
The modulation is FSK.
4. Transmitter Side Program
The Si4010 in the key fob programmed with the rke_demo_2 program. Since the program is burned in the NVM
(OTP) memory of the Si4010, it cannot be changed. The whole rke_demo_2 software project can be found in the
example programs package of the Si4010. It is available at the web page
http://www.silabs.com/products/wireless/EZRadio/Pages/Si4010.aspx on the Tools tab.
The key fob transmits an RF packet three times each time a button is pressed, and it also blinks the LED on the key
fob. The packet structure is as follows:
Number of Bytes
Field Name
Description
13
Preamble
0xaa
2
Sync
0x2d, 0xd4
4
Chip ID
Unique, factory-burned chip ID
1
Status
Lower 5 bits are the button information
2
Packet count
Rolling counter for PER measurement
2
CRC-16
Generator X16+X15+X2+1, start value 0xFFFF
Symbol rate is 9.6 kBd.
Each packet contains 18 additional bytes that are not received by the receiver of this demo. These additional bytes
are AES-encrypted and are used by the AES demo kit. See details in the user’s guide of the AES demo kit (P/N
4010-AESK1W-434).
In the key fob program the frequency and deviation is pin-selected by the pcb layout. This operating frequency is
indicated on a label on the back of the key fob pcb.
GPIO8
GPIO9
Center Frequency
Deviation
High
Low
316.66 MHz
 43 kHz
High
High
433.92 MHz
 59 kHz
Low
High
868.30 MHz
 119 kHz
Low
Low
917.00 MHz
 120 kHz
The 316.667 MHz key fob is available in the 4010-AESK1W-315 demo kit or separately from Silicon Labs.
The key fob’s default modulation is FSK but if the middle button is pressed and held during battery insertion, the
modulation will be OOK until the next powerdown (battery removal).
Rev. 0.2
3
Si4010-RC-DEMO
5. Receive Side Program
The 8051F930 MCU on the RFStick transmitter board is factory-programmed with the stx_demo program. Since
the program is programmed in flash memory, it can be overwritten using a Silicon Labs Toolstick Base Adapter that
is part of the Si4010 development kit or can be ordered separately as well (P/N Toolstick_BA). The complete
stx_demo software project can be found in the example programs package of the Si4355. It is available at the web
page http://www.silabs.com/products/wireless/EZRadio/Pages/Si4355.aspx on the Tools tab.
The receiver prgoram configures and controls the Si4355 receiver chip via the SPI bus. The Si4355 receives the
packets transmitted by the keyfob, checks the preamble, the syn bytes and the CRC. If the packet is OK, the
program flashes the LEDs according to the button information in the status byte of the received packet.
6. Schematics
Schematics of the transmitter and receiver boards of the kit can be seen on the following pages. Complete
manufacturing file pack with CAD/CAM files and BOMs can be found at http://www.silabs.com.
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DOCUMENT CHANGE LIST
Revision 0.1 to Revision 0.2
Updated
Updated
8
"2. Operating the Demo" on page 2.
Table 2 on page 2.
Rev. 0.2
Si4010-RC-DEMO
NOTES:
Rev. 0.2
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CONTACT INFORMATION
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
Tel: 1+(512) 416-8500
Fax: 1+(512) 416-9669
Toll Free: 1+(877) 444-3032
Please visit the Silicon Labs Technical Support web page:
https://www.silabs.com/support/pages/contacttechnicalsupport.aspx
and register to submit a technical support request.
The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice.
Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from
the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features
or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon Laboratories makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Silicon Laboratories assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to
support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where personal injury or death may occur. Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages.
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are
trademarks or registered trademarks of their respective holders.
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