diff --git a/Microcontrollers/.vs/Microcontrollers/v14/.atsuo b/Microcontrollers/.vs/Microcontrollers/v14/.atsuo
index 836b0dc..e91e23b 100644
Binary files a/Microcontrollers/.vs/Microcontrollers/v14/.atsuo and b/Microcontrollers/.vs/Microcontrollers/v14/.atsuo differ
diff --git a/Microcontrollers/Microcontrollers.atsln b/Microcontrollers/Microcontrollers.atsln
index 02f542a..52693ab 100644
--- a/Microcontrollers/Microcontrollers.atsln
+++ b/Microcontrollers/Microcontrollers.atsln
@@ -5,6 +5,8 @@ VisualStudioVersion = 14.0.23107.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{54F91283-7BC4-4236-8FF9-10F437C3AD48}") = "Microcontrollers", "Microcontrollers\Microcontrollers.cproj", "{2285C48D-296E-43FD-A7B6-69885F64CFFD}"
 EndProject
+Project("{54F91283-7BC4-4236-8FF9-10F437C3AD48}") = "opdracht 2.7a", "opdracht 2.7a\opdracht 2.7a.cproj", "{B7ED8D27-9387-4A45-A238-923F89602FB5}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|AVR = Debug|AVR
@@ -15,6 +17,10 @@ Global
 		{2285C48D-296E-43FD-A7B6-69885F64CFFD}.Debug|AVR.Build.0 = Debug|AVR
 		{2285C48D-296E-43FD-A7B6-69885F64CFFD}.Release|AVR.ActiveCfg = Release|AVR
 		{2285C48D-296E-43FD-A7B6-69885F64CFFD}.Release|AVR.Build.0 = Release|AVR
+		{B7ED8D27-9387-4A45-A238-923F89602FB5}.Debug|AVR.ActiveCfg = Debug|AVR
+		{B7ED8D27-9387-4A45-A238-923F89602FB5}.Debug|AVR.Build.0 = Debug|AVR
+		{B7ED8D27-9387-4A45-A238-923F89602FB5}.Release|AVR.ActiveCfg = Release|AVR
+		{B7ED8D27-9387-4A45-A238-923F89602FB5}.Release|AVR.Build.0 = Release|AVR
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/Microcontrollers/opdracht 2.7a/main.c b/Microcontrollers/opdracht 2.7a/main.c
index 8e76030..eaea0e3 100644
--- a/Microcontrollers/opdracht 2.7a/main.c	
+++ b/Microcontrollers/opdracht 2.7a/main.c	
@@ -1,16 +1,104 @@
 /*
  * main.c
  *
- * Created: 10-Feb-21 9:13:58 AM
+ * Created: 08-Feb-21 10:03:33 AM
  *  Author: lemms
  */ 
+# define F_CPU 10000000UL
 
+#include <util/delay.h>
 #include <xc.h>
 
+typedef enum {
+	IDLE,
+	PERPARE_COFFEE_POWDER,
+	BOIL_WATER,
+	POUR_COFFEE
+	} state ;
+	
+	typedef enum {
+		false = 0,
+		true = 1
+	} bool;
+
+state current_state;
+
+void wait( int ms )
+{
+	for (int i=0; i<ms; i++)
+	{
+		_delay_ms( 1 );		// library function (max 30 ms at 8MHz)
+	}
+}
+
+void setPulveriserState(bool state){
+	// set coffee powder mill on or off;
+}
+
+bool checkCoffeePowderLevel(){
+	// check sensor
+	return true;
+}
+
+void updateScreen(){
+	// update its display;
+	if(...){
+		current_state = PERPARE_COFFEE_POWDER;
+	}
+}
+
+void setBoilerState(bool state){
+	// set boiler on or off;
+}
+
+bool checkWaterTemp(){
+	// check sensor
+	return true;
+}
+
+ long milisPouring;
+ 
+void setPourPumpState(bool state){
+	// set pump on or off;
+}
+
 int main(void)
 {
     while(1)
     {
-        //TODO:: Please write your application code 
+        switch(state){
+			case IDLE:
+				updateScreen();
+			break;
+			
+			case PERPARE_COFFEE_POWDER:
+				bool coffeeLevel = checkCoffeePowderLevel();
+				setPulveriserState(!coffeeLevel);
+			
+				if(coffeeLevel){
+					current_state = BOIL_WATER;
+				}
+			break;
+			
+			case BOIL_WATER:
+				bool waterTemp = checkWaterTemp();
+				setBoilerState(!waterTemp);
+				if(waterTemp){
+					current_state = POUR_COFFEE;
+				}
+			break;
+			
+			case POUR_COFFEE:
+				bool shouldPour = !(milisPouring => 2000);
+				setPourPumpState(shouldPour);
+			
+				milisPouring++;
+			
+				if(!shouldPour){
+					milisPouring = 0;
+				}
+			break;
+		}
+		wait(1);
     }
 }
\ No newline at end of file
diff --git a/Microcontrollers/opdracht 2.7a/opdracht 2.7a.cproj b/Microcontrollers/opdracht 2.7a/opdracht 2.7a.cproj
index 9c0f55c..e883d7a 100644
--- a/Microcontrollers/opdracht 2.7a/opdracht 2.7a.cproj	
+++ b/Microcontrollers/opdracht 2.7a/opdracht 2.7a.cproj	
@@ -4,7 +4,7 @@
     <SchemaVersion>2.0</SchemaVersion>
     <ProjectVersion>7.0</ProjectVersion>
     <ToolchainName>com.microchip.xc8</ToolchainName>
-    <ProjectGuid>2285C48D-296E-43FD-A7B6-69885F64CFFD</ProjectGuid>
+    <ProjectGuid>{b7ed8d27-9387-4a45-a238-923f89602fb5}</ProjectGuid>
     <avrdevice>ATmega128</avrdevice>
     <avrdeviceseries>none</avrdeviceseries>
     <OutputType>Executable</OutputType>
@@ -15,12 +15,80 @@
     <AssemblyName>opdracht 2.7a</AssemblyName>
     <Name>opdracht 2.7a</Name>
     <RootNamespace>opdracht 2.7a</RootNamespace>
+    <ToolchainFlavour>XC8_2.31</ToolchainFlavour>
+    <KeepTimersRunning>true</KeepTimersRunning>
+    <OverrideVtor>false</OverrideVtor>
+    <CacheFlash>true</CacheFlash>
+    <ProgFlashFromRam>true</ProgFlashFromRam>
+    <RamSnippetAddress />
+    <UncachedRange />
+    <preserveEEPROM>true</preserveEEPROM>
+    <OverrideVtorValue />
+    <BootSegment>2</BootSegment>
+    <ResetRule>0</ResetRule>
+    <eraseonlaunchrule>0</eraseonlaunchrule>
+    <EraseKey />
+    <AsfFrameworkConfig>
+      <framework-data xmlns="">
+  <options />
+  <configurations />
+  <files />
+  <documentation help="" />
+  <offline-documentation help="" />
+  <dependencies>
+    <content-extension eid="atmel.asf" uuidref="Atmel.ASF" version="3.49.1" />
+  </dependencies>
+</framework-data>
+    </AsfFrameworkConfig>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-    <ToolchainSettings />
+    <ToolchainSettings>
+      <com.microchip.xc8>
+  <com.microchip.xc8.common.optimization.RelaxBranches>True</com.microchip.xc8.common.optimization.RelaxBranches>
+  <com.microchip.xc8.compiler.general.ChangeDefaultCharTypeUnsigned>True</com.microchip.xc8.compiler.general.ChangeDefaultCharTypeUnsigned>
+  <com.microchip.xc8.compiler.general.ChangeDefaultBitFieldUnsigned>True</com.microchip.xc8.compiler.general.ChangeDefaultBitFieldUnsigned>
+  <com.microchip.xc8.compiler.symbols.DefSymbols>
+    <ListValues>
+      <Value>(%24DeviceMacro)</Value>
+      <Value>NDEBUG</Value>
+    </ListValues>
+  </com.microchip.xc8.compiler.symbols.DefSymbols>
+  <com.microchip.xc8.compiler.optimization.level>Optimize for size (-Os)</com.microchip.xc8.compiler.optimization.level>
+  <com.microchip.xc8.compiler.optimization.PackStructureMembers>True</com.microchip.xc8.compiler.optimization.PackStructureMembers>
+  <com.microchip.xc8.compiler.optimization.AllocateBytesNeededForEnum>True</com.microchip.xc8.compiler.optimization.AllocateBytesNeededForEnum>
+  <com.microchip.xc8.compiler.warnings.AllWarnings>True</com.microchip.xc8.compiler.warnings.AllWarnings>
+  <com.microchip.xc8.linker.libraries.Libraries>
+    <ListValues>
+      <Value>libm</Value>
+    </ListValues>
+  </com.microchip.xc8.linker.libraries.Libraries>
+</com.microchip.xc8>
+    </ToolchainSettings>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
-    <ToolchainSettings />
+    <ToolchainSettings>
+      <com.microchip.xc8>
+  <com.microchip.xc8.compiler.general.ChangeDefaultCharTypeUnsigned>True</com.microchip.xc8.compiler.general.ChangeDefaultCharTypeUnsigned>
+  <com.microchip.xc8.compiler.general.ChangeDefaultBitFieldUnsigned>True</com.microchip.xc8.compiler.general.ChangeDefaultBitFieldUnsigned>
+  <com.microchip.xc8.compiler.symbols.DefSymbols>
+    <ListValues>
+      <Value>(%24DeviceMacro)</Value>
+      <Value>DEBUG</Value>
+    </ListValues>
+  </com.microchip.xc8.compiler.symbols.DefSymbols>
+  <com.microchip.xc8.compiler.optimization.level>Optimize debugging experience (-Og)</com.microchip.xc8.compiler.optimization.level>
+  <com.microchip.xc8.compiler.optimization.PackStructureMembers>True</com.microchip.xc8.compiler.optimization.PackStructureMembers>
+  <com.microchip.xc8.compiler.optimization.AllocateBytesNeededForEnum>True</com.microchip.xc8.compiler.optimization.AllocateBytesNeededForEnum>
+  <com.microchip.xc8.compiler.optimization.DebugLevel>Default (-g2)</com.microchip.xc8.compiler.optimization.DebugLevel>
+  <com.microchip.xc8.compiler.warnings.AllWarnings>True</com.microchip.xc8.compiler.warnings.AllWarnings>
+  <com.microchip.xc8.linker.libraries.Libraries>
+    <ListValues>
+      <Value>libm</Value>
+    </ListValues>
+  </com.microchip.xc8.linker.libraries.Libraries>
+  <com.microchip.xc8.assembler.debugging.DebugLevel>Default (-Wa,-g)</com.microchip.xc8.assembler.debugging.DebugLevel>
+</com.microchip.xc8>
+    </ToolchainSettings>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="main.c">