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Theory of Operation
Transmitter Evaluation Board
The transmitter board is powered by an on-board 3V CR2032 lithium
battery. It has two SPST pushbutton switches, the state of which is
encoded into a data stream using a Linx MS Series encoder. If a switch
is closed, the transmitter will be enabled while the encoder captures the
pushbutton states for encoding and transmission. The encoder will power
down the transmitter when the button is released. All of the data lines have
been wired out to the header to the right of the prototyping area and can
be accessed for use with other switches, contacts or microcontrollers.
Receiver Evaluation Board
The receiver board is powered by two AAA batteries. The LR Series
receiver exhibits a sensitivity of greater than –112dBm, so under optimum
line-of-sight conditions, the transmitter / receiver link can operate over
distances of up to 3,000 feet. The data recovered by the LR Series receiver
is decoded by a MS Series decoder, and the data lines are updated to
match the state of the data lines (or pushbuttons) on the transmitter board.
To demonstrate this, one data line is used to drive a LED while another is
used to activate a buzzer. This board also has a prototyping area with all of
the receiver and decoder lines brought out to a header.
Using the Kit
Using the kit is straightforward. Simply attach the antennas, turn on the
power and press one or both of the buttons on the transmitter board.
When S0 is pressed, the buzzer will sound; when S1 is pressed, the LED
will turn on. When any button (S0–S7) is pressed on the transmitter board,
the corresponding decoder output (D0–D7) will be active high (V CC ) on the
prototyping header.
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相关代理商/技术参数
EVAL-433-LC-S
功能描述:KIT BASIC EVAL 433MHZ LC SERIES RoHS:否 类别:RF/IF 和 RFID >> 过时/停产零件编号 系列:LC 标准包装:1 系列:- 类型:用于 200/300 系列的欧盟开发套件 适用于相关产品:Zensys RF 模块 所含物品:开发板，模块，编程器，软件，线缆，电源 其它名称:703-1019Q3225667
EVAL-433-LR
功能描述:射频开发工具 LR Basic Eval System 433MHz
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
EVAL-433-LT
功能描述:射频开发工具 LT Basic Eval System 433MHz (NEW)
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
EVAL4971
功能描述:电源管理IC开发工具 Eval Board for L4971 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
EVAL4973
功能描述:电源管理IC开发工具 Eval Board for L4973 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
EVAL4981A
功能描述:电源管理IC开发工具 Eval Board L4981A RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
EVAL5100/5200
制造商:Infineon Technologies AG 功能描述:
EVAL5100/5210
制造商:Infineon Technologies AG 功能描述: