http:///https//wiki.microduino.cn/index.php?action=history&feed=atom&title=Microduino-KEYBOARDMicroduino-KEYBOARD - 版本历史2026-06-06T03:13:56Z本wiki的该页面的版本历史MediaWiki 1.30.0https//wiki.microduino.cn/index.php?title=Microduino-KEYBOARD&diff=7892&oldid=prev1304410487@qq.com：Created page with " {{Language|Microduino-KEYBOARD Sensor}} {| style="width: 800px;" |- | Microduino-KEYBOARD Sensor Microduino-KEYBOAR..."2015-03-03T08:44:11Z<p>Created page with " {{Language|Microduino-KEYBOARD Sensor}} {| style="width: 800px;" |- | <a href="/index.php/%E6%96%87%E4%BB%B6:Microduino-KEYBOARD-rect.jpg" title="文件:Microduino-KEYBOARD-rect.jpg">400px|thumb|right| Microduino-KEYBOARD Sensor</a> Microduino-KEYBOAR..."</p>
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[[File: Microduino-KEYBOARD-rect.jpg|400px|thumb|right| Microduino-KEYBOARD Sensor]]<br />
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Microduino-KEYBOARD Sensor consists of eight keys with an analog interface output. <br />
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==Feature==<br />
*Adopt resistance divider and eight keys can be recognized by one single I/O.<br />
*Small size and easy for installation. <br />
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==Specification==<br />
*Eight keys to match different resistance values; <br />
*1.27mm-pitch 4Pin interface; <br />
*Size: 20.32*20.32mm <br />
*Operation voltage: 5V <br />
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[[File: Microduino-KEYBOARD Sensor_rule1.jpg|600px|thumb|center]]<br />
[[File: Microduino-KEYBOARD Sensor_rule2.jpg|600px|thumb|center]]<br />
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==Document==<br />
*Schematic：'''[[File: Microduino_KEYBOARD.Zip]]'''<br />
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==Development==<br />
The analog key is used for detecting analog quantity. Each key is used to match different resistor for grounding on one side and connects VCC through a resistor one the other side. By pressing each key, you can get different analog values. Thus, you can tell the key from different analog value. With only one I/O interface, you can tell eight keys, which saves a lot. <br />
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==Application==<br />
*Hardware needed: [[Microduino-Core]], [[Microduino-USBTTL]], [[Microduino-Sensorhub]], USB cable and connectors; <br />
*Stack all the modules and then connect KEYBOARD to A0 pin of Sensorhub with wires. <br />
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*Open Arduino IDE, select File→Examples→Basics→AnalogReadSerial, choose the right board and download after compiling. <br />
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*Open serial monitor after download, press different keys and watch reading changes as well as the return values. So, you can judge which press is pressed by the return values and readings. <br />
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==Purchase==<br />
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==History==<br />
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==Pictures==<br />
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*Front <br />
[[file: Microduino-KEYBOARD Sensor-F.JPG|thumb|600px|center|Microduino-Cube-Station Front]]<br />
*Back <br />
[[file: Microduino-KEYBOARD Sensor -b.JPG|thumb|600px|center|Microduino-Cube-Station Back]]<br />
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