- 您现在的位置：买卖IC网 > Datasheet目录395 > ATAKSTK511-3 (Atmel)KIT RF MODULE 315MHZ FOR STK500 Datasheet资料下载
参数资料
| 型号： | ATAKSTK511-3 |
| 厂商： | Atmel |
| 文件页数： | 25/37页 |
| 文件大小： | 0K |
| 描述： | KIT RF MODULE 315MHZ FOR STK500 |
| 标准包装： | 1 |
| 系列： | SmartRF® |
| 类型： | 发射器，接收器，ASK，FSK |
| 频率： | 433MHz |
| 适用于相关产品： | ATSTK500-ND |
| 已供物品： | 3 个板，天线，CD |
| 产品目录页面： | 553 (CN2011-ZH PDF) |
| 其它名称： | Q2262874 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
STK511 Transmitter Board
Figure 5-2.
Figure 5-3.
6-pin ISP Header Pinout (Viewed from the Top of the Fob)
Transmitter Programming Assembly
Using Atmel’s AVR Studio ? software program and the STK500, for example, the demo software provided
on the accompanying CD can be easily loaded. The assembly-language code is well commented and
should enable the user to modify such things as the Manchester-encoded transmission data rate and
duty cycle, or the update interval for light-sensor.
5.1.3
5-2
Functional Features
Modulation Modes: The STK511 transmitter can be configured to modulate its RF carrier using either
ASK or FSK. Selection of either modulation scheme is defined by the software in the microcontroller,
which frees the user from having to change components on the PCB.
Data is modulated using Manchester-encoding at a 1 kHz data rate. At power up, the software is initial-
ized to support FSK. However, the modulation mode can be toggled between ASK and FSK by
simultaneously pressing and releasing both buttons on the transmitter. FSK is indicated when both LEDs
flash during data transmission while only one LED flashes during ASK.
ASK modulation occurs when the AVR enables the T5750/3/4 IC and sends a serial data stream to the
IC’s control input. In contrast, an FSK-modulated signal is generated when the AVR sends the serial
data stream to the crystal oscillator’s pair of load capacitors. The lower, shifted RF FSK frequency is
obtained by asserting an AVR I/O low which connects an additional load capacitance to the crystal oscil-
lator. When that same AVR control-port pin is set as a high-impedance input, the upper RF FSK
frequency (which is the same as the carrier frequency during ASK modulation) is generated.
WatchDog Timer: Another built-in feature of the ATtiny13 microcontroller, utilized in the STK511 trans-
mitter, is the WatchDog Timer (WDT). At time-out, the WDT can generate either a system-reset signal or
an interrupt, which can be handled by software Interrupt Service Routine. For example, in the Sensor
program (one of the demo programs on the accompanying CD), the WDT is programmed to generate an
interrupt that awakens the transmitter at one of two specified intervals (selectable by the user) in order to
measure light intensity on the CdS photocell. The WDT time-out interval can be defined within a range of
0.016 seconds to 8 seconds by setting bits in a control register.
STK511 User Guide
4842B–AVR–10/09
相关PDF资料 |
PDF描述 |
|---|---|
| ATAKSTK512-3 | KIT RF MOD REMOTE 315MHZ UNIDIR |
| ATAVRUSBRF01 | KIT REF DES AVR NORDIC 2.4GHZ |
| ATMEGA128RFA1-ZUR | IC AVR MCU 2.4GHZ XCEIVER 64QFN |
| ATMEGA64RZAPV-10AU | BUNDLE ATMEGA644P/AT86RF230 TQFP |
| ATP101-TL-H | MOSFET P-CH 30V 25A ATPAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATAKSTK511-4 | 功能描述:射频开发工具 434 MHz AVR based RF Starterkit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAKSTK511-8 | 功能描述:射频开发工具 868 MHz AVR based RF Starterkit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAKSTK511-9 | 功能描述:射频开发工具 915 MHz AVR based RF Starterkit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAKSTK512-3 | 功能描述:射频开发工具 REMOTE ACCESS CNTRL UNDIRECTIONAL KIT RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAKSTK512-4 | 功能描述:射频开发工具 REMOTE ACCESS CNTRL UNDIRECTIONAL KIT RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
发布紧急采购，3分钟左右您将得到回复。