Licht Sensor

Dependencies:   mbed

/media/uploads/marcel1691/light.png

Ein Fotowiderstand (englisch Light Dependent Resistor, LDR) ist ein Lichtabhängiger Widerstand aus einer amorphen Halbleiter-Schicht. Je höher der Lichteinfall, desto kleiner wird aufgrund des inneren fotoelektrischen Effekts sein elektrischer Widerstand.

Der Fotowiderstand kann nicht direkt mit einem analogen Pin verbunden werden, da dieser nur Spannungen und keine Widerstände messen kann. Die Lösung ist die die Spannungsteiler Schaltung. Die Kombination Fotowiderstand und Spannungsteiler ergibt einen Licht Sensor.

Anwendungen

  • Dämmerungsschalter

Files at this revision

API Documentation at this revision

Comitter:
marcel1691
Date:
Sat Aug 15 20:01:13 2015 +0200
Parent:
1:d97ed63aad9c
Commit message:
Erweitert um Eclipse/gcc4mbed Konfiguration

Changed in this revision

.cproject Show annotated file Show diff for this revision Revisions of this file
.hgignore Show annotated file Show diff for this revision Revisions of this file
.project Show annotated file Show diff for this revision Revisions of this file
.settings/language.settings.xml Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
makefile Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.cproject	Sat Aug 15 20:01:13 2015 +0200
@@ -0,0 +1,119 @@
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+				<externalSettings/>
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+					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
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+							<option id="ilg.gnuarmeclipse.managedbuild.cross.option.addtools.printsize.758462063" name="Print size" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.addtools.printsize" value="true" valueType="boolean"/>
+							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="ilg.gnuarmeclipse.managedbuild.cross.targetPlatform.581708800" isAbstract="false" osList="all" superClass="ilg.gnuarmeclipse.managedbuild.cross.targetPlatform"/>
+							<builder buildPath="${workspace_loc:/LichtSensor}/" id="ilg.gnuarmeclipse.managedbuild.cross.builder.279963342" incrementalBuildTarget="all deploy GCC4MBED_TYPE=Debug" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" superClass="ilg.gnuarmeclipse.managedbuild.cross.builder"/>
+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.assembler.1812478576" name="Cross ARM GNU Assembler" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.assembler">
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.assembler.usepreprocessor.1229015522" name="Use preprocessor" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.assembler.usepreprocessor" value="true" valueType="boolean"/>
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+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gcc4mbed/gcc-arm-none-eabi/arm-none-eabi/include}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gcc4mbed/external/mbed/libraries/mbed/api}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gcc4mbed/external/mbed/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_MCU_K64F/TARGET_FRDM}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gcc4mbed/external/mbed/libraries/rtos/rtos}&quot;"/>
+								</option>
+								<inputType id="ilg.gnuarmeclipse.managedbuild.cross.tool.assembler.input.1111374361" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.assembler.input"/>
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+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.196870631" name="Cross ARM C Compiler" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler">
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.c.compiler.include.paths.409750843" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.c.compiler.include.paths" valueType="includePath">
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+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gcc4mbed/external/mbed/libraries/rtos/rtos}&quot;"/>
+								</option>
+								<inputType id="ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.input.468596586" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.input"/>
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+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.gcsections.1593247083" name="Remove unused sections (-Xlinker --gc-sections)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.gcsections" value="true" valueType="boolean"/>
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+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.archiver.121696161" name="Cross ARM GNU Archiver" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.archiver"/>
+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.createflash.2043277547" name="Cross ARM GNU Create Flash Image" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.createflash"/>
+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.createlisting.737930736" name="Cross ARM GNU Create Listing" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.createlisting">
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.source.1090292838" name="Display source (--source|-S)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.source" value="true" valueType="boolean"/>
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.allheaders.1430508271" name="Display all headers (--all-headers|-x)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.allheaders" value="true" valueType="boolean"/>
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.demangle.766239203" name="Demangle names (--demangle|-C)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.demangle" value="true" valueType="boolean"/>
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.linenumbers.465980461" name="Display line numbers (--line-numbers|-l)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.createlisting.linenumbers" value="true" valueType="boolean"/>
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+							<tool id="ilg.gnuarmeclipse.managedbuild.cross.tool.printsize.491622660" name="Cross ARM GNU Print Size" superClass="ilg.gnuarmeclipse.managedbuild.cross.tool.printsize">
+								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.printsize.format.1555940589" name="Size format" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.printsize.format"/>
+							</tool>
+						</toolChain>
+					</folderInfo>
+				</configuration>
+			</storageModule>
+			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
+		</cconfiguration>
+	</storageModule>
+	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
+		<project id="LichtSensor.ilg.gnuarmeclipse.managedbuild.cross.target.elf.493983437" name="Executable" projectType="ilg.gnuarmeclipse.managedbuild.cross.target.elf"/>
+	</storageModule>
+	<storageModule moduleId="scannerConfiguration">
+		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+		<scannerConfigBuildInfo instanceId="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.2021967821;ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.2021967821.;ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.196870631;ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.input.468596586">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+		</scannerConfigBuildInfo>
+		<scannerConfigBuildInfo instanceId="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.2021967821;ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.2021967821.;ilg.gnuarmeclipse.managedbuild.cross.tool.cpp.compiler.1905710208;ilg.gnuarmeclipse.managedbuild.cross.tool.cpp.compiler.input.107005217">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+		</scannerConfigBuildInfo>
+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+	<storageModule moduleId="refreshScope" versionNumber="2">
+		<configuration configurationName="Debug">
+			<resource resourceType="PROJECT" workspacePath="/LichtSensor"/>
+		</configuration>
+	</storageModule>
+</cproject>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Sat Aug 15 20:01:13 2015 +0200
@@ -0,0 +1,3 @@
+
+syntax: regexp
+^MCU_K64F$
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.project	Sat Aug 15 20:01:13 2015 +0200
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>LichtSensor</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+			<triggers>clean,full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+			<triggers>full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.cdt.core.cnature</nature>
+		<nature>org.eclipse.cdt.core.ccnature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+	</natures>
+</projectDescription>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.settings/language.settings.xml	Sat Aug 15 20:01:13 2015 +0200
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project>
+	<configuration id="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.2021967821" name="Debug">
+		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
+			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
+			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
+			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="-870569983935497340" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+				<language-scope id="org.eclipse.cdt.core.gcc"/>
+				<language-scope id="org.eclipse.cdt.core.g++"/>
+			</provider>
+		</extension>
+	</configuration>
+</project>
--- a/main.cpp	Wed Mar 25 11:59:40 2015 +0000
+++ b/main.cpp	Sat Aug 15 20:01:13 2015 +0200
@@ -14,6 +14,6 @@
             led1 = 1;
         else
             led1 = 0;
-        wait ( 1.0 );   
-    }     
-}
\ No newline at end of file
+        wait ( 1.0 );
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/makefile	Sat Aug 15 20:01:13 2015 +0200
@@ -0,0 +1,20 @@
+# Copyright 2015 Adam Green (http://mbed.org/users/AdamGreen/)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+PROJECT         := LichtSensor
+#DEVICES         := MCU_K64F
+#GCC4MBED_DIR    := D:/Sourcen/gcc4mbed
+NO_FLOAT_SCANF  := 1
+NO_FLOAT_PRINTF := 1
+
+include $(GCC4MBED_DIR)/build/gcc4mbed.mk