EK2505 (Synapse Wireless) Datasheet资料下载 PDF(35/42 页)

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参数资料

型号：	EK2505
厂商：	Synapse Wireless
文件页数：	35/42页
文件大小：	0K
描述：	EVAL KIT FOR SNAP MESH NETWORKNG
标准包装：	1
系列：	SNAP™ Network
类型：	收发器，SNAP
频率：	868MHz
适用于相关产品：	RF300PC1
已供物品：	3 个板，3 根天线，线缆，CD，文档
其它名称：	746-1042

The buzzer.py script is pretty simple:

1) When buzzer.py first runs, it “announces itself” to any nodes that might be

looking for a buzzer they can use.

2) It blinks the yellow LED once a second (just to let you know the script is

running).

3) If you push the button on that node, a short beep will sound (just to let you know

the buzzer is working)

4) If any node broadcasts “who has a buzzer I can use?”, buzzer.py will answer

5) Other nodes can ask for a “beep” of a specified duration.

So, script buzzer.py basically provides a “buzzer service” that other nodes can take

advantage of.

Now look at the SN111 End Device node (Device Type = “Photo”), which should now be

running the DarkDetector.py script:

1) The yellow LED should be blinking once per second

2) Depending on the light levels and variance where the SN111 is sitting, it is either

showing a value of “00” on its display, or it might be displaying various values.

The displayed value represents a “percentage of darkness”, 00-99, with a value of

99 representing the maximum darkness level the node has ever seen.

The Dark Detector script is already monitoring for changes in light levels, but the script

also includes an “auto-calibration” capability. Since you have not “calibrated” the node

yet, no values will be acted upon.

Cover the photocell on the node with your finger. A value of “99” will be shown on the

display, and you should also hear a short beep from the other node (the SN171 Proto

Board, which is running the buzzer.py script we uploaded into it).

Now by “hovering” your finger at various heights above the photocell, you should be

able to vary the “darkness level” from 0 to 99%. Whenever you cross the 85% level, a

short beep should sound from the “buzzer.py” node.

In Portal, bring up the Node Info panel for the Dark Detector node, and expand the tree

of functions provided by the “DarkDetector” module.

EK2500 Users Guide-v1.7

Page 35

of 42

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