diff --git a/Microcontrollers/opdracht 4.1/Debug/Makefile b/Microcontrollers/opdracht 4.1/Debug/Makefile
new file mode 100644
index 0000000..3895648
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/Debug/Makefile	
@@ -0,0 +1,139 @@
+################################################################################
+# Automatically-generated file. Do not edit!
+################################################################################
+
+SHELL := cmd.exe
+RM := rm -rf
+
+USER_OBJS :=
+
+LIBS := 
+PROJ := 
+
+O_SRCS := 
+C_SRCS := 
+S_SRCS := 
+S_UPPER_SRCS := 
+OBJ_SRCS := 
+ASM_SRCS := 
+PREPROCESSING_SRCS := 
+OBJS := 
+OBJS_AS_ARGS := 
+C_DEPS := 
+C_DEPS_AS_ARGS := 
+EXECUTABLES := 
+OUTPUT_FILE_PATH :=
+OUTPUT_FILE_PATH_AS_ARGS :=
+AVR_APP_PATH :=$$$AVR_APP_PATH$$$
+QUOTE := "
+ADDITIONAL_DEPENDENCIES:=
+OUTPUT_FILE_DEP:=
+LIB_DEP:=
+LINKER_SCRIPT_DEP:=
+
+# Every subdirectory with source files must be described here
+SUBDIRS := 
+
+
+# Add inputs and outputs from these tool invocations to the build variables 
+C_SRCS +=  \
+../lcd_control.c \
+../main.c
+
+
+PREPROCESSING_SRCS += 
+
+
+ASM_SRCS += 
+
+
+OBJS +=  \
+lcd_control.o \
+main.o
+
+OBJS_AS_ARGS +=  \
+lcd_control.o \
+main.o
+
+C_DEPS +=  \
+lcd_control.d \
+main.d
+
+C_DEPS_AS_ARGS +=  \
+lcd_control.d \
+main.d
+
+OUTPUT_FILE_PATH +=opdracht\ 4.1.elf
+
+OUTPUT_FILE_PATH_AS_ARGS +="opdracht 4.1.elf"
+
+ADDITIONAL_DEPENDENCIES:=
+
+OUTPUT_FILE_DEP:= ./makedep.mk
+
+LIB_DEP+= 
+
+LINKER_SCRIPT_DEP+= 
+
+
+# AVR32/GNU C Compiler
+./lcd_control.o: .././lcd_control.c
+	@echo Building file: $<
+	@echo Invoking: AVR/GNU C Compiler : 5.4.0
+	$(QUOTE)C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-gcc.exe$(QUOTE)  -x c -funsigned-char -funsigned-bitfields -DDEBUG  -I"C:\Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\include"  -Og -ffunction-sections -fdata-sections -fpack-struct -fshort-enums -mrelax -g2 -Wall -mmcu=atmega128 -B "C:\Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128" -c -std=gnu99 -MD -MP -MF "$(@:%.o=%.d)" -MT"$(@:%.o=%.d)" -MT"$(@:%.o=%.o)"   -o "$@" "$<" 
+	@echo Finished building: $<
+	
+
+./main.o: .././main.c
+	@echo Building file: $<
+	@echo Invoking: AVR/GNU C Compiler : 5.4.0
+	$(QUOTE)C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-gcc.exe$(QUOTE)  -x c -funsigned-char -funsigned-bitfields -DDEBUG  -I"C:\Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\include"  -Og -ffunction-sections -fdata-sections -fpack-struct -fshort-enums -mrelax -g2 -Wall -mmcu=atmega128 -B "C:\Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128" -c -std=gnu99 -MD -MP -MF "$(@:%.o=%.d)" -MT"$(@:%.o=%.d)" -MT"$(@:%.o=%.o)"   -o "$@" "$<" 
+	@echo Finished building: $<
+	
+
+
+
+
+# AVR32/GNU Preprocessing Assembler
+
+
+
+# AVR32/GNU Assembler
+
+
+
+
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(strip $(C_DEPS)),)
+-include $(C_DEPS)
+endif
+endif
+
+# Add inputs and outputs from these tool invocations to the build variables 
+
+# All Target
+all: $(OUTPUT_FILE_PATH) $(ADDITIONAL_DEPENDENCIES)
+
+$(OUTPUT_FILE_PATH): $(OBJS) $(USER_OBJS) $(OUTPUT_FILE_DEP) $(LIB_DEP) $(LINKER_SCRIPT_DEP)
+	@echo Building target: $@
+	@echo Invoking: AVR/GNU Linker : 5.4.0
+	$(QUOTE)C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-gcc.exe$(QUOTE) -o$(OUTPUT_FILE_PATH_AS_ARGS) $(OBJS_AS_ARGS) $(USER_OBJS) $(LIBS) -Wl,-Map="opdracht 4.1.map" -Wl,--start-group -Wl,-lm  -Wl,--end-group -Wl,--gc-sections -mrelax -mmcu=atmega128 -B "C:\Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128"  
+	@echo Finished building target: $@
+	"C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-objcopy.exe" -O ihex -R .eeprom -R .fuse -R .lock -R .signature -R .user_signatures  "opdracht 4.1.elf" "opdracht 4.1.hex"
+	"C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-objcopy.exe" -j .eeprom  --set-section-flags=.eeprom=alloc,load --change-section-lma .eeprom=0  --no-change-warnings -O ihex "opdracht 4.1.elf" "opdracht 4.1.eep" || exit 0
+	"C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-objdump.exe" -h -S "opdracht 4.1.elf" > "opdracht 4.1.lss"
+	"C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-objcopy.exe" -O srec -R .eeprom -R .fuse -R .lock -R .signature -R .user_signatures "opdracht 4.1.elf" "opdracht 4.1.srec"
+	"C:\Program Files (x86)\Atmel\Studio\7.0\toolchain\avr8\avr8-gnu-toolchain\bin\avr-size.exe" "opdracht 4.1.elf"
+	
+	
+
+
+
+
+
+# Other Targets
+clean:
+	-$(RM) $(OBJS_AS_ARGS) $(EXECUTABLES)  
+	-$(RM) $(C_DEPS_AS_ARGS)   
+	rm -rf "opdracht 4.1.elf" "opdracht 4.1.a" "opdracht 4.1.hex" "opdracht 4.1.lss" "opdracht 4.1.eep" "opdracht 4.1.map" "opdracht 4.1.srec" "opdracht 4.1.usersignatures"
+	
\ No newline at end of file
diff --git a/Microcontrollers/opdracht 4.1/Debug/makedep.mk b/Microcontrollers/opdracht 4.1/Debug/makedep.mk
new file mode 100644
index 0000000..c9e4784
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/Debug/makedep.mk	
@@ -0,0 +1,8 @@
+################################################################################
+# Automatically-generated file. Do not edit or delete the file
+################################################################################
+
+lcd_control.c
+
+main.c
+
diff --git a/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.eep b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.eep
new file mode 100644
index 0000000..7c166a1
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.eep	
@@ -0,0 +1 @@
+:00000001FF
diff --git a/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.lss b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.lss
new file mode 100644
index 0000000..299d274
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.lss	
@@ -0,0 +1,505 @@
+
+opdracht 4.1.elf:     file format elf32-avr
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 .data         0000000c  00800100  00000232  000002a6  2**0
+                  CONTENTS, ALLOC, LOAD, DATA
+  1 .text         00000232  00000000  00000000  00000074  2**1
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  2 .comment      00000030  00000000  00000000  000002b2  2**0
+                  CONTENTS, READONLY
+  3 .note.gnu.avr.deviceinfo 0000003c  00000000  00000000  000002e4  2**2
+                  CONTENTS, READONLY
+  4 .debug_aranges 000000b8  00000000  00000000  00000320  2**0
+                  CONTENTS, READONLY, DEBUGGING
+  5 .debug_info   00000e60  00000000  00000000  000003d8  2**0
+                  CONTENTS, READONLY, DEBUGGING
+  6 .debug_abbrev 00000a5b  00000000  00000000  00001238  2**0
+                  CONTENTS, READONLY, DEBUGGING
+  7 .debug_line   00000693  00000000  00000000  00001c93  2**0
+                  CONTENTS, READONLY, DEBUGGING
+  8 .debug_frame  00000168  00000000  00000000  00002328  2**2
+                  CONTENTS, READONLY, DEBUGGING
+  9 .debug_str    0000052a  00000000  00000000  00002490  2**0
+                  CONTENTS, READONLY, DEBUGGING
+ 10 .debug_loc    000002c7  00000000  00000000  000029ba  2**0
+                  CONTENTS, READONLY, DEBUGGING
+ 11 .debug_ranges 00000098  00000000  00000000  00002c81  2**0
+                  CONTENTS, READONLY, DEBUGGING
+
+Disassembly of section .text:
+
+00000000 <__vectors>:
+   0:	45 c0       	rjmp	.+138    	; 0x8c <__ctors_end>
+   2:	00 00       	nop
+   4:	58 c0       	rjmp	.+176    	; 0xb6 <__bad_interrupt>
+   6:	00 00       	nop
+   8:	56 c0       	rjmp	.+172    	; 0xb6 <__bad_interrupt>
+   a:	00 00       	nop
+   c:	54 c0       	rjmp	.+168    	; 0xb6 <__bad_interrupt>
+   e:	00 00       	nop
+  10:	52 c0       	rjmp	.+164    	; 0xb6 <__bad_interrupt>
+  12:	00 00       	nop
+  14:	50 c0       	rjmp	.+160    	; 0xb6 <__bad_interrupt>
+  16:	00 00       	nop
+  18:	4e c0       	rjmp	.+156    	; 0xb6 <__bad_interrupt>
+  1a:	00 00       	nop
+  1c:	4c c0       	rjmp	.+152    	; 0xb6 <__bad_interrupt>
+  1e:	00 00       	nop
+  20:	4a c0       	rjmp	.+148    	; 0xb6 <__bad_interrupt>
+  22:	00 00       	nop
+  24:	df c0       	rjmp	.+446    	; 0x1e4 <__vector_9>
+  26:	00 00       	nop
+  28:	46 c0       	rjmp	.+140    	; 0xb6 <__bad_interrupt>
+  2a:	00 00       	nop
+  2c:	44 c0       	rjmp	.+136    	; 0xb6 <__bad_interrupt>
+  2e:	00 00       	nop
+  30:	42 c0       	rjmp	.+132    	; 0xb6 <__bad_interrupt>
+  32:	00 00       	nop
+  34:	40 c0       	rjmp	.+128    	; 0xb6 <__bad_interrupt>
+  36:	00 00       	nop
+  38:	3e c0       	rjmp	.+124    	; 0xb6 <__bad_interrupt>
+  3a:	00 00       	nop
+  3c:	3c c0       	rjmp	.+120    	; 0xb6 <__bad_interrupt>
+  3e:	00 00       	nop
+  40:	3a c0       	rjmp	.+116    	; 0xb6 <__bad_interrupt>
+  42:	00 00       	nop
+  44:	38 c0       	rjmp	.+112    	; 0xb6 <__bad_interrupt>
+  46:	00 00       	nop
+  48:	36 c0       	rjmp	.+108    	; 0xb6 <__bad_interrupt>
+  4a:	00 00       	nop
+  4c:	34 c0       	rjmp	.+104    	; 0xb6 <__bad_interrupt>
+  4e:	00 00       	nop
+  50:	32 c0       	rjmp	.+100    	; 0xb6 <__bad_interrupt>
+  52:	00 00       	nop
+  54:	30 c0       	rjmp	.+96     	; 0xb6 <__bad_interrupt>
+  56:	00 00       	nop
+  58:	2e c0       	rjmp	.+92     	; 0xb6 <__bad_interrupt>
+  5a:	00 00       	nop
+  5c:	2c c0       	rjmp	.+88     	; 0xb6 <__bad_interrupt>
+  5e:	00 00       	nop
+  60:	2a c0       	rjmp	.+84     	; 0xb6 <__bad_interrupt>
+  62:	00 00       	nop
+  64:	28 c0       	rjmp	.+80     	; 0xb6 <__bad_interrupt>
+  66:	00 00       	nop
+  68:	26 c0       	rjmp	.+76     	; 0xb6 <__bad_interrupt>
+  6a:	00 00       	nop
+  6c:	24 c0       	rjmp	.+72     	; 0xb6 <__bad_interrupt>
+  6e:	00 00       	nop
+  70:	22 c0       	rjmp	.+68     	; 0xb6 <__bad_interrupt>
+  72:	00 00       	nop
+  74:	20 c0       	rjmp	.+64     	; 0xb6 <__bad_interrupt>
+  76:	00 00       	nop
+  78:	1e c0       	rjmp	.+60     	; 0xb6 <__bad_interrupt>
+  7a:	00 00       	nop
+  7c:	1c c0       	rjmp	.+56     	; 0xb6 <__bad_interrupt>
+  7e:	00 00       	nop
+  80:	1a c0       	rjmp	.+52     	; 0xb6 <__bad_interrupt>
+  82:	00 00       	nop
+  84:	18 c0       	rjmp	.+48     	; 0xb6 <__bad_interrupt>
+  86:	00 00       	nop
+  88:	16 c0       	rjmp	.+44     	; 0xb6 <__bad_interrupt>
+	...
+
+0000008c <__ctors_end>:
+  8c:	11 24       	eor	r1, r1
+  8e:	1f be       	out	0x3f, r1	; 63
+  90:	cf ef       	ldi	r28, 0xFF	; 255
+  92:	d0 e1       	ldi	r29, 0x10	; 16
+  94:	de bf       	out	0x3e, r29	; 62
+  96:	cd bf       	out	0x3d, r28	; 61
+
+00000098 <__do_copy_data>:
+  98:	11 e0       	ldi	r17, 0x01	; 1
+  9a:	a0 e0       	ldi	r26, 0x00	; 0
+  9c:	b1 e0       	ldi	r27, 0x01	; 1
+  9e:	e2 e3       	ldi	r30, 0x32	; 50
+  a0:	f2 e0       	ldi	r31, 0x02	; 2
+  a2:	00 e0       	ldi	r16, 0x00	; 0
+  a4:	0b bf       	out	0x3b, r16	; 59
+  a6:	02 c0       	rjmp	.+4      	; 0xac <__do_copy_data+0x14>
+  a8:	07 90       	elpm	r0, Z+
+  aa:	0d 92       	st	X+, r0
+  ac:	ac 30       	cpi	r26, 0x0C	; 12
+  ae:	b1 07       	cpc	r27, r17
+  b0:	d9 f7       	brne	.-10     	; 0xa8 <__do_copy_data+0x10>
+  b2:	a2 d0       	rcall	.+324    	; 0x1f8 <main>
+  b4:	bc c0       	rjmp	.+376    	; 0x22e <_exit>
+
+000000b6 <__bad_interrupt>:
+  b6:	a4 cf       	rjmp	.-184    	; 0x0 <__vectors>
+
+000000b8 <sbi_porta>:
+void cbi_portc(int index){
+	PORTC &= ~(1<<index);
+}
+
+void sbi_porta(int index){
+	PORTA |= (1<<index);
+  b8:	9b b3       	in	r25, 0x1b	; 27
+  ba:	21 e0       	ldi	r18, 0x01	; 1
+  bc:	30 e0       	ldi	r19, 0x00	; 0
+  be:	02 c0       	rjmp	.+4      	; 0xc4 <sbi_porta+0xc>
+  c0:	22 0f       	add	r18, r18
+  c2:	33 1f       	adc	r19, r19
+  c4:	8a 95       	dec	r24
+  c6:	e2 f7       	brpl	.-8      	; 0xc0 <sbi_porta+0x8>
+  c8:	29 2b       	or	r18, r25
+  ca:	2b bb       	out	0x1b, r18	; 27
+  cc:	08 95       	ret
+
+000000ce <cbi_porta>:
+}
+
+
+void cbi_porta(int index){
+	PORTA &= ~(1<<index);
+  ce:	9b b3       	in	r25, 0x1b	; 27
+  d0:	21 e0       	ldi	r18, 0x01	; 1
+  d2:	30 e0       	ldi	r19, 0x00	; 0
+  d4:	02 c0       	rjmp	.+4      	; 0xda <cbi_porta+0xc>
+  d6:	22 0f       	add	r18, r18
+  d8:	33 1f       	adc	r19, r19
+  da:	8a 95       	dec	r24
+  dc:	e2 f7       	brpl	.-8      	; 0xd6 <cbi_porta+0x8>
+  de:	20 95       	com	r18
+  e0:	29 23       	and	r18, r25
+  e2:	2b bb       	out	0x1b, r18	; 27
+  e4:	08 95       	ret
+
+000000e6 <lcd_strobe_lcd_e>:
+	lcd_write_command (0x80);						//Cursor terug naar start
+}
+
+void lcd_strobe_lcd_e(void) {
+	
+	sbi_porta(LCD_E);	// E high
+  e6:	86 e0       	ldi	r24, 0x06	; 6
+  e8:	90 e0       	ldi	r25, 0x00	; 0
+  ea:	e6 df       	rcall	.-52     	; 0xb8 <sbi_porta>
+	#else
+		//round up by default
+		__ticks_dc = (uint32_t)(ceil(fabs(__tmp)));
+	#endif
+
+	__builtin_avr_delay_cycles(__ticks_dc);
+  ec:	89 ef       	ldi	r24, 0xF9	; 249
+  ee:	90 e0       	ldi	r25, 0x00	; 0
+  f0:	01 97       	sbiw	r24, 0x01	; 1
+  f2:	f1 f7       	brne	.-4      	; 0xf0 <lcd_strobe_lcd_e+0xa>
+  f4:	00 c0       	rjmp	.+0      	; 0xf6 <lcd_strobe_lcd_e+0x10>
+  f6:	00 00       	nop
+	_delay_ms(1);
+	cbi_porta(LCD_E);  	// E low
+  f8:	86 e0       	ldi	r24, 0x06	; 6
+  fa:	90 e0       	ldi	r25, 0x00	; 0
+  fc:	e8 df       	rcall	.-48     	; 0xce <cbi_porta>
+  fe:	89 ef       	ldi	r24, 0xF9	; 249
+ 100:	90 e0       	ldi	r25, 0x00	; 0
+ 102:	01 97       	sbiw	r24, 0x01	; 1
+ 104:	f1 f7       	brne	.-4      	; 0x102 <lcd_strobe_lcd_e+0x1c>
+ 106:	00 c0       	rjmp	.+0      	; 0x108 <lcd_strobe_lcd_e+0x22>
+ 108:	00 00       	nop
+ 10a:	08 95       	ret
+
+0000010c <lcd_write_character>:
+	// return home
+	lcd_write_command(0x02);
+	lcd_strobe_lcd_e();
+}
+
+void lcd_write_character(unsigned char byte){
+ 10c:	cf 93       	push	r28
+ 10e:	c8 2f       	mov	r28, r24
+	
+	
+	//upper nibble
+	PORTC = byte;
+ 110:	85 bb       	out	0x15, r24	; 21
+	sbi_porta(LCD_RS);
+ 112:	84 e0       	ldi	r24, 0x04	; 4
+ 114:	90 e0       	ldi	r25, 0x00	; 0
+ 116:	d0 df       	rcall	.-96     	; 0xb8 <sbi_porta>
+	lcd_strobe_lcd_e();
+ 118:	e6 df       	rcall	.-52     	; 0xe6 <lcd_strobe_lcd_e>
+ 11a:	c2 95       	swap	r28
+	
+	//lower nibble
+	PORTC = (byte<<4);
+ 11c:	c0 7f       	andi	r28, 0xF0	; 240
+ 11e:	c5 bb       	out	0x15, r28	; 21
+ 120:	84 e0       	ldi	r24, 0x04	; 4
+	sbi_porta(LCD_RS);
+ 122:	90 e0       	ldi	r25, 0x00	; 0
+ 124:	c9 df       	rcall	.-110    	; 0xb8 <sbi_porta>
+	lcd_strobe_lcd_e();
+ 126:	df df       	rcall	.-66     	; 0xe6 <lcd_strobe_lcd_e>
+ 128:	cf 91       	pop	r28
+	
+}
+ 12a:	08 95       	ret
+
+0000012c <lcd_write_command>:
+ 12c:	cf 93       	push	r28
+
+void lcd_write_command(unsigned char byte){
+ 12e:	c8 2f       	mov	r28, r24
+	
+	//upper nibble
+	PORTC = byte;
+ 130:	85 bb       	out	0x15, r24	; 21
+	cbi_porta(LCD_RS);
+ 132:	84 e0       	ldi	r24, 0x04	; 4
+ 134:	90 e0       	ldi	r25, 0x00	; 0
+ 136:	cb df       	rcall	.-106    	; 0xce <cbi_porta>
+	lcd_strobe_lcd_e();
+ 138:	d6 df       	rcall	.-84     	; 0xe6 <lcd_strobe_lcd_e>
+ 13a:	c2 95       	swap	r28
+	
+	//lower nibble
+	PORTC = (byte<<4);
+ 13c:	c0 7f       	andi	r28, 0xF0	; 240
+ 13e:	c5 bb       	out	0x15, r28	; 21
+ 140:	84 e0       	ldi	r24, 0x04	; 4
+	cbi_porta(LCD_RS);
+ 142:	90 e0       	ldi	r25, 0x00	; 0
+ 144:	c4 df       	rcall	.-120    	; 0xce <cbi_porta>
+	lcd_strobe_lcd_e();
+ 146:	cf df       	rcall	.-98     	; 0xe6 <lcd_strobe_lcd_e>
+ 148:	cf 91       	pop	r28
+
+}
+ 14a:	08 95       	ret
+
+0000014c <lcd_clear>:
+ 14c:	81 e0       	ldi	r24, 0x01	; 1
+#include "lcd_control.h"
+
+void _delay_ms(double __ms);
+
+void lcd_clear() {
+	lcd_write_command (0x01);						//Leeg display
+ 14e:	ee df       	rcall	.-36     	; 0x12c <lcd_write_command>
+ 150:	83 ef       	ldi	r24, 0xF3	; 243
+ 152:	91 e0       	ldi	r25, 0x01	; 1
+ 154:	01 97       	sbiw	r24, 0x01	; 1
+ 156:	f1 f7       	brne	.-4      	; 0x154 <lcd_clear+0x8>
+ 158:	00 c0       	rjmp	.+0      	; 0x15a <lcd_clear+0xe>
+ 15a:	00 00       	nop
+	_delay_ms(2);
+	lcd_write_command (0x80);						//Cursor terug naar start
+ 15c:	80 e8       	ldi	r24, 0x80	; 128
+ 15e:	e6 cf       	rjmp	.-52     	; 0x12c <lcd_write_command>
+ 160:	08 95       	ret
+
+00000162 <init_4bits_mode>:
+
+void cbi_porta(int index){
+	PORTA &= ~(1<<index);
+}
+
+void init_4bits_mode(void) {
+ 162:	cf 93       	push	r28
+	
+	// PORTC output mode and all low (also E and RS pin)
+	
+	// Init I/O
+	DDRC = 0xFF;			// PORTD(7) output, PORTD(6:0) input
+ 164:	8f ef       	ldi	r24, 0xFF	; 255
+ 166:	84 bb       	out	0x14, r24	; 20
+	PORTC = 0xFF;
+ 168:	85 bb       	out	0x15, r24	; 21
+	
+	DDRA = 0xFF;
+ 16a:	8a bb       	out	0x1a, r24	; 26
+	PORTC = 0x00;
+ 16c:	15 ba       	out	0x15, r1	; 21
+	PORTA = 0x00;
+ 16e:	1b ba       	out	0x1b, r1	; 27
+	
+	PORTC = 0x20;	// function for 4-bit 1 row
+ 170:	c0 e2       	ldi	r28, 0x20	; 32
+ 172:	c5 bb       	out	0x15, r28	; 21
+	lcd_strobe_lcd_e();
+ 174:	b8 df       	rcall	.-144    	; 0xe6 <lcd_strobe_lcd_e>
+
+	PORTC = 0x20;   // function high nibble 4-bit 2 row
+	lcd_strobe_lcd_e();
+ 176:	c5 bb       	out	0x15, r28	; 21
+ 178:	b6 df       	rcall	.-148    	; 0xe6 <lcd_strobe_lcd_e>
+	PORTC = 0x80;	// function low nibble 4-bit 2 row
+ 17a:	80 e8       	ldi	r24, 0x80	; 128
+	lcd_strobe_lcd_e();
+ 17c:	85 bb       	out	0x15, r24	; 21
+
+	PORTC = 0x00;   // function high nibble turn on visible blinking-block cursor
+ 17e:	b3 df       	rcall	.-154    	; 0xe6 <lcd_strobe_lcd_e>
+	lcd_strobe_lcd_e();
+ 180:	15 ba       	out	0x15, r1	; 21
+	PORTC = 0xF0;   // function low nibble turn on visible blinking-block cursor
+ 182:	b1 df       	rcall	.-158    	; 0xe6 <lcd_strobe_lcd_e>
+	lcd_strobe_lcd_e();
+ 184:	80 ef       	ldi	r24, 0xF0	; 240
+
+	PORTC = 0x00;   // Entry mode set high nibble
+ 186:	85 bb       	out	0x15, r24	; 21
+	lcd_strobe_lcd_e();
+ 188:	ae df       	rcall	.-164    	; 0xe6 <lcd_strobe_lcd_e>
+	PORTC = 0x60;	// Entry mode set low nibble
+ 18a:	15 ba       	out	0x15, r1	; 21
+ 18c:	ac df       	rcall	.-168    	; 0xe6 <lcd_strobe_lcd_e>
+	lcd_strobe_lcd_e();
+ 18e:	80 e6       	ldi	r24, 0x60	; 96
+ 190:	85 bb       	out	0x15, r24	; 21
+	
+	// return home
+	lcd_write_command(0x02);
+ 192:	a9 df       	rcall	.-174    	; 0xe6 <lcd_strobe_lcd_e>
+ 194:	82 e0       	ldi	r24, 0x02	; 2
+ 196:	ca df       	rcall	.-108    	; 0x12c <lcd_write_command>
+	lcd_strobe_lcd_e();
+ 198:	a6 df       	rcall	.-180    	; 0xe6 <lcd_strobe_lcd_e>
+ 19a:	cf 91       	pop	r28
+}
+ 19c:	08 95       	ret
+
+0000019e <lcd_write_string>:
+ 19e:	cf 93       	push	r28
+	cbi_porta(LCD_RS);
+	lcd_strobe_lcd_e();
+
+}
+
+void lcd_write_string(const char *str) {
+ 1a0:	df 93       	push	r29
+ 1a2:	ec 01       	movw	r28, r24
+	
+	for(;*str; str++){
+ 1a4:	02 c0       	rjmp	.+4      	; 0x1aa <lcd_write_string+0xc>
+		lcd_write_character(*str);
+ 1a6:	b2 df       	rcall	.-156    	; 0x10c <lcd_write_character>
+
+}
+
+void lcd_write_string(const char *str) {
+	
+	for(;*str; str++){
+ 1a8:	21 96       	adiw	r28, 0x01	; 1
+ 1aa:	88 81       	ld	r24, Y
+ 1ac:	81 11       	cpse	r24, r1
+ 1ae:	fb cf       	rjmp	.-10     	; 0x1a6 <lcd_write_string+0x8>
+		lcd_write_character(*str);
+	}
+}
+ 1b0:	df 91       	pop	r29
+ 1b2:	cf 91       	pop	r28
+ 1b4:	08 95       	ret
+
+000001b6 <lcd_move_right>:
+
+void lcd_move_right(void){
+	
+	lcd_write_command(0x1E);
+ 1b6:	8e e1       	ldi	r24, 0x1E	; 30
+ 1b8:	b9 cf       	rjmp	.-142    	; 0x12c <lcd_write_command>
+ 1ba:	08 95       	ret
+
+000001bc <wait>:
+	int value = 0;
+	value = ADCH;
+	value <<= 2;
+	value += ADCL;
+	return value;
+}
+ 1bc:	20 e0       	ldi	r18, 0x00	; 0
+ 1be:	30 e0       	ldi	r19, 0x00	; 0
+ 1c0:	08 c0       	rjmp	.+16     	; 0x1d2 <wait+0x16>
+ 1c2:	e3 ec       	ldi	r30, 0xC3	; 195
+ 1c4:	f9 e0       	ldi	r31, 0x09	; 9
+ 1c6:	31 97       	sbiw	r30, 0x01	; 1
+ 1c8:	f1 f7       	brne	.-4      	; 0x1c6 <wait+0xa>
+ 1ca:	00 c0       	rjmp	.+0      	; 0x1cc <wait+0x10>
+ 1cc:	00 00       	nop
+ 1ce:	2f 5f       	subi	r18, 0xFF	; 255
+ 1d0:	3f 4f       	sbci	r19, 0xFF	; 255
+ 1d2:	28 17       	cp	r18, r24
+ 1d4:	39 07       	cpc	r19, r25
+ 1d6:	ac f3       	brlt	.-22     	; 0x1c2 <wait+0x6>
+ 1d8:	08 95       	ret
+
+000001da <adcInit>:
+ 1da:	80 ee       	ldi	r24, 0xE0	; 224
+ 1dc:	87 b9       	out	0x07, r24	; 7
+ 1de:	86 e8       	ldi	r24, 0x86	; 134
+ 1e0:	86 b9       	out	0x06, r24	; 6
+ 1e2:	08 95       	ret
+
+000001e4 <__vector_9>:
+ 1e4:	1f 92       	push	r1
+ 1e6:	0f 92       	push	r0
+ 1e8:	0f b6       	in	r0, 0x3f	; 63
+ 1ea:	0f 92       	push	r0
+ 1ec:	11 24       	eor	r1, r1
+ 1ee:	0f 90       	pop	r0
+ 1f0:	0f be       	out	0x3f, r0	; 63
+ 1f2:	0f 90       	pop	r0
+ 1f4:	1f 90       	pop	r1
+ 1f6:	18 95       	reti
+
+000001f8 <main>:
+
+int main(void)
+{
+    /* Replace with your application code */
+	DDRF = 0x00; // set port F input.
+ 1f8:	10 92 61 00 	sts	0x0061, r1	; 0x800061 <__TEXT_REGION_LENGTH__+0x7e0061>
+	DDRE = 0xFF; // all port A output.
+ 1fc:	8f ef       	ldi	r24, 0xFF	; 255
+ 1fe:	82 b9       	out	0x02, r24	; 2
+	adcInit();
+ 200:	ec df       	rcall	.-40     	; 0x1da <adcInit>
+	
+	init_4bits_mode();
+ 202:	af df       	rcall	.-162    	; 0x162 <init_4bits_mode>
+	lcd_clear();
+ 204:	a3 df       	rcall	.-186    	; 0x14c <lcd_clear>
+	lcd_move_right();
+ 206:	d7 df       	rcall	.-82     	; 0x1b6 <lcd_move_right>
+	lcd_move_right();
+ 208:	d6 df       	rcall	.-84     	; 0x1b6 <lcd_move_right>
+ 20a:	80 e0       	ldi	r24, 0x00	; 0
+	lcd_write_string("MOOOOOOOOO");
+ 20c:	91 e0       	ldi	r25, 0x01	; 1
+ 20e:	c7 df       	rcall	.-114    	; 0x19e <lcd_write_string>
+ 210:	87 ea       	ldi	r24, 0xA7	; 167
+ 212:	91 e6       	ldi	r25, 0x61	; 97
+ 214:	01 97       	sbiw	r24, 0x01	; 1
+ 216:	f1 f7       	brne	.-4      	; 0x214 <main+0x1c>
+ 218:	00 c0       	rjmp	.+0      	; 0x21a <main+0x22>
+ 21a:	00 00       	nop
+ 21c:	86 b1       	in	r24, 0x06	; 6
+ 21e:	80 64       	ori	r24, 0x40	; 64
+	_delay_ms(10);
+
+	//timer2Init();
+    while (1) 
+    {
+		ADCSRA |= BIT(6);
+ 220:	86 b9       	out	0x06, r24	; 6
+ 222:	85 b1       	in	r24, 0x05	; 5
+		PORTE = ADCH;
+ 224:	83 b9       	out	0x03, r24	; 3
+ 226:	8a e0       	ldi	r24, 0x0A	; 10
+		//lcd_clear();
+		//lcd_write_character(getADCValue());
+		wait(10);
+ 228:	90 e0       	ldi	r25, 0x00	; 0
+ 22a:	c8 df       	rcall	.-112    	; 0x1bc <wait>
+ 22c:	f7 cf       	rjmp	.-18     	; 0x21c <main+0x24>
+
+0000022e <_exit>:
+ 22e:	f8 94       	cli
+
+00000230 <__stop_program>:
+ 230:	ff cf       	rjmp	.-2      	; 0x230 <__stop_program>
diff --git a/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.srec b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.srec
new file mode 100644
index 0000000..cfb5d3c
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/Debug/opdracht 4.1.srec	
@@ -0,0 +1,39 @@
+S01400006F7064726163687420342E312E7372656308
+S113000045C0000058C0000056C0000054C00000A5
+S113001052C0000050C000004EC000004CC00000A0
+S11300204AC00000DFC0000046C0000044C0000019
+S113003042C0000040C000003EC000003CC00000C0
+S11300403AC0000038C0000036C0000034C00000D0
+S113005032C0000030C000002EC000002CC00000E0
+S11300602AC0000028C0000026C0000024C00000F0
+S113007022C0000020C000001EC000001CC0000000
+S11300801AC0000018C0000016C0000011241FBED2
+S1130090CFEFD0E1DEBFCDBF11E0A0E0B1E0E2E3FD
+S11300A0F2E000E00BBF02C007900D92AC30B10744
+S11300B0D9F7A2D0BCC0A4CF9BB321E030E002C0EA
+S11300C0220F331F8A95E2F7292B2BBB08959BB38C
+S11300D021E030E002C0220F331F8A95E2F7209519
+S11300E029232BBB089586E090E0E6DF89EF90E0BA
+S11300F00197F1F700C0000086E090E0E8DF89EFA7
+S113010090E00197F1F700C000000895CF93C82F45
+S113011085BB84E090E0D0DFE6DFC295C07FC5BB3D
+S113012084E090E0C9DFDFDFCF910895CF93C82F3B
+S113013085BB84E090E0CBDFD6DFC295C07FC5BB32
+S113014084E090E0C4DFCFDFCF91089581E0EEDF5B
+S113015083EF91E00197F1F700C0000080E8E6CF5B
+S11301600895CF938FEF84BB85BB8ABB15BA1BBAA6
+S1130170C0E2C5BBB8DFC5BBB6DF80E885BBB3DF73
+S113018015BAB1DF80EF85BBAEDF15BAACDF80E610
+S113019085BBA9DF82E0CADFA6DFCF910895CF93A4
+S11301A0DF93EC0102C0B2DF219688818111FBCF7D
+S11301B0DF91CF9108958EE1B9CF089520E030E02A
+S11301C008C0E3ECF9E03197F1F700C000002F5FBD
+S11301D03F4F28173907ACF3089580EE87B986E8B6
+S11301E086B908951F920F920FB60F9211240F90A3
+S11301F00FBE0F901F901895109261008FEF82B977
+S1130200ECDFAFDFA3DFD7DFD6DF80E091E0C7DF2D
+S113021087EA91E60197F1F700C0000086B1806497
+S113022086B985B183B98AE090E0C8DFF7CFF89446
+S1050230FFCFFA
+S10F02324D4F4F4F4F4F4F4F4F4F0000A8
+S9030000FC
diff --git a/Microcontrollers/opdracht 4.1/lcd_control.c b/Microcontrollers/opdracht 4.1/lcd_control.c
new file mode 100644
index 0000000..4fb3439
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/lcd_control.c	
@@ -0,0 +1,122 @@
+/*
+ * lcd_controlc.c
+ *
+ * Created: 24-2-2021 11:55:12
+ *  Author: Sem
+ */ 
+
+#include <avr/io.h>
+#include <util/delay.h>
+#include <avr/interrupt.h>
+#include "lcd_control.h"
+
+void _delay_ms(double __ms);
+
+void lcd_clear() {
+	lcd_write_command (0x01);						//Leeg display
+	_delay_ms(2);
+	lcd_write_command (0x80);						//Cursor terug naar start
+}
+
+void lcd_strobe_lcd_e(void) {
+	
+	sbi_porta(LCD_E);	// E high
+	_delay_ms(1);
+	cbi_porta(LCD_E);  	// E low
+	_delay_ms(1);
+	
+}
+
+void sbi_portc(int index){
+	PORTC |= (1<<index);
+}
+
+
+void cbi_portc(int index){
+	PORTC &= ~(1<<index);
+}
+
+void sbi_porta(int index){
+	PORTA |= (1<<index);
+}
+
+
+void cbi_porta(int index){
+	PORTA &= ~(1<<index);
+}
+
+void init_4bits_mode(void) {
+	
+	// PORTC output mode and all low (also E and RS pin)
+	
+	// Init I/O
+	DDRC = 0xFF;			// PORTD(7) output, PORTD(6:0) input
+	PORTC = 0xFF;
+	
+	DDRA = 0xFF;
+	PORTC = 0x00;
+	PORTA = 0x00;
+	
+	PORTC = 0x20;	// function for 4-bit 1 row
+	lcd_strobe_lcd_e();
+
+	PORTC = 0x20;   // function high nibble 4-bit 2 row
+	lcd_strobe_lcd_e();
+	PORTC = 0x80;	// function low nibble 4-bit 2 row
+	lcd_strobe_lcd_e();
+
+	PORTC = 0x00;   // function high nibble turn on visible blinking-block cursor
+	lcd_strobe_lcd_e();
+	PORTC = 0xF0;   // function low nibble turn on visible blinking-block cursor
+	lcd_strobe_lcd_e();
+
+	PORTC = 0x00;   // Entry mode set high nibble
+	lcd_strobe_lcd_e();
+	PORTC = 0x60;	// Entry mode set low nibble
+	lcd_strobe_lcd_e();
+	
+	// return home
+	lcd_write_command(0x02);
+	lcd_strobe_lcd_e();
+}
+
+void lcd_write_character(unsigned char byte){
+	
+	
+	//upper nibble
+	PORTC = byte;
+	sbi_porta(LCD_RS);
+	lcd_strobe_lcd_e();
+	
+	//lower nibble
+	PORTC = (byte<<4);
+	sbi_porta(LCD_RS);
+	lcd_strobe_lcd_e();
+	
+}
+
+void lcd_write_command(unsigned char byte){
+	
+	//upper nibble
+	PORTC = byte;
+	cbi_porta(LCD_RS);
+	lcd_strobe_lcd_e();
+	
+	//lower nibble
+	PORTC = (byte<<4);
+	cbi_porta(LCD_RS);
+	lcd_strobe_lcd_e();
+
+}
+
+void lcd_write_string(const char *str) {
+	
+	for(;*str; str++){
+		lcd_write_character(*str);
+	}
+}
+
+void lcd_move_right(void){
+	
+	lcd_write_command(0x1E);
+}
diff --git a/Microcontrollers/opdracht 4.1/lcd_control.h b/Microcontrollers/opdracht 4.1/lcd_control.h
new file mode 100644
index 0000000..bd67e0c
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/lcd_control.h	
@@ -0,0 +1,30 @@
+/*
+ * lcd_control.h
+ *
+ * Created: 24-2-2021 11:56:16
+ *  Author: Sem
+ */ 
+
+
+#ifndef LCD_CONTROL_H_
+#define LCD_CONTROL_H_
+
+#define LCD_E 	6
+#define LCD_RS	4
+
+void _delay_ms(double __ms);
+void lcd_strobe_lcd_e(void);
+void sbi_portc(int index);
+void cbi_portc(int index);
+void sbi_porta(int index);
+void cbi_porta(int index);
+void init_4bits_mode(void);
+void lcd_write_string(const char *str);
+void lcd_write_character(unsigned char byte);
+void lcd_write_command(unsigned char byte);
+void lcd_move_right(void);
+void lcd_clear();
+
+
+
+#endif /* LCD_CONTROL_H_ */
\ No newline at end of file
diff --git a/Microcontrollers/opdracht 4.1/main.c b/Microcontrollers/opdracht 4.1/main.c
new file mode 100644
index 0000000..5faaad6
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/main.c	
@@ -0,0 +1,70 @@
+/*
+ * opdracht 4.1.c
+ *
+ * Created: 03-Mar-21 9:26:31 AM
+ * Author : lemms
+ */ 
+
+
+#define F_CPU 10e6
+#include <avr/io.h>
+#include <util/delay.h>
+#include <avr/interrupt.h>
+#include "lcd_control.h"
+#define BIT(x)			(1 << (x))
+
+void wait( int ms ) {
+	for (int tms=0; tms<ms; tms++) {
+		_delay_ms( 1 );			// library function (max 30 ms at 8MHz)
+	}
+}
+
+void adcInit(){
+	ADMUX = 0b11100000; // internal reference: 2.56V and SEI on ADC0 and left-adjusted.
+	ADCSRA = 0b10000110; // enable ADC. No free-run. Clock 64 D-factor.
+}
+
+void timer2Init( void ) {
+	TIMSK |= BIT(7);		// T2 compare match interrupt enable
+	sei();					// turn_on interrupt all
+	TCCR2 = 0b00000011;		// Initialize T2: timer, pre-scaler=64
+}
+
+ISR( TIMER2_COMP_vect ) {
+	
+}
+
+int getADCValue(){
+	int value = 0;
+	value = ADCH;
+	value <<= 2;
+	value += ADCL;
+	return value;
+}
+
+int main(void)
+{
+    /* Replace with your application code */
+	DDRF = 0x00; // set port F input.
+	DDRE = 0xFF; // all port A output.
+	adcInit();
+	
+	init_4bits_mode();
+	lcd_clear();
+	lcd_move_right();
+	lcd_move_right();
+	lcd_write_string("MOOOOOOOOO");
+	
+	_delay_ms(10);
+
+	//timer2Init();
+    while (1) 
+    {
+		ADCSRA |= BIT(6);
+		PORTE = ADCH;
+		//lcd_clear();
+		//lcd_write_character(getADCValue());
+		wait(10);
+    }
+}
+
diff --git a/Microcontrollers/opdracht 4.1/opdracht 4.1.componentinfo.xml b/Microcontrollers/opdracht 4.1/opdracht 4.1.componentinfo.xml
new file mode 100644
index 0000000..3bb27a6
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/opdracht 4.1.componentinfo.xml	
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Store xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="AtmelPackComponentManagement">
+	<ProjectComponents>
+		<ProjectComponent z:Id="i1" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/">
+			<CApiVersion></CApiVersion>
+			<CBundle></CBundle>
+			<CClass>Device</CClass>
+			<CGroup>Startup</CGroup>
+			<CSub></CSub>
+			<CVariant></CVariant>
+			<CVendor>Atmel</CVendor>
+			<CVersion>1.6.0</CVersion>
+			<DefaultRepoPath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs</DefaultRepoPath>
+			<DependentComponents xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" />
+			<Description></Description>
+			<Files xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
+				<d4p1:anyType i:type="FileInfo">
+					<AbsolutePath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\include\</AbsolutePath>
+					<Attribute></Attribute>
+					<Category>include</Category>
+					<Condition>C</Condition>
+					<FileContentHash i:nil="true" />
+					<FileVersion></FileVersion>
+					<Name>include/</Name>
+					<SelectString></SelectString>
+					<SourcePath></SourcePath>
+				</d4p1:anyType>
+				<d4p1:anyType i:type="FileInfo">
+					<AbsolutePath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\include\avr\iom128.h</AbsolutePath>
+					<Attribute></Attribute>
+					<Category>header</Category>
+					<Condition>C</Condition>
+					<FileContentHash>JdJ7J9I/SJh965SEyyyVYw==</FileContentHash>
+					<FileVersion></FileVersion>
+					<Name>include/avr/iom128.h</Name>
+					<SelectString></SelectString>
+					<SourcePath></SourcePath>
+				</d4p1:anyType>
+				<d4p1:anyType i:type="FileInfo">
+					<AbsolutePath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\templates\main.c</AbsolutePath>
+					<Attribute>template</Attribute>
+					<Category>source</Category>
+					<Condition>C Exe</Condition>
+					<FileContentHash>ocUBw/Ju1i9iTulaRbeRxg==</FileContentHash>
+					<FileVersion></FileVersion>
+					<Name>templates/main.c</Name>
+					<SelectString>Main file (.c)</SelectString>
+					<SourcePath></SourcePath>
+				</d4p1:anyType>
+				<d4p1:anyType i:type="FileInfo">
+					<AbsolutePath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\templates\main.cpp</AbsolutePath>
+					<Attribute>template</Attribute>
+					<Category>source</Category>
+					<Condition>C Exe</Condition>
+					<FileContentHash>mkKaE95TOoATsuBGv6jmxg==</FileContentHash>
+					<FileVersion></FileVersion>
+					<Name>templates/main.cpp</Name>
+					<SelectString>Main file (.cpp)</SelectString>
+					<SourcePath></SourcePath>
+				</d4p1:anyType>
+				<d4p1:anyType i:type="FileInfo">
+					<AbsolutePath>C:/Program Files (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128</AbsolutePath>
+					<Attribute></Attribute>
+					<Category>libraryPrefix</Category>
+					<Condition>GCC</Condition>
+					<FileContentHash i:nil="true" />
+					<FileVersion></FileVersion>
+					<Name>gcc/dev/atmega128</Name>
+					<SelectString></SelectString>
+					<SourcePath></SourcePath>
+				</d4p1:anyType>
+			</Files>
+			<PackName>ATmega_DFP</PackName>
+			<PackPath>C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.6.364/Atmel.ATmega_DFP.pdsc</PackPath>
+			<PackVersion>1.6.364</PackVersion>
+			<PresentInProject>true</PresentInProject>
+			<ReferenceConditionId>ATmega128</ReferenceConditionId>
+			<RteComponents xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
+				<d4p1:string></d4p1:string>
+			</RteComponents>
+			<Status>Resolved</Status>
+			<VersionMode>Fixed</VersionMode>
+			<IsComponentInAtProject>true</IsComponentInAtProject>
+		</ProjectComponent>
+	</ProjectComponents>
+</Store>
\ No newline at end of file
diff --git a/Microcontrollers/opdracht 4.1/opdracht 4.1.cproj b/Microcontrollers/opdracht 4.1/opdracht 4.1.cproj
new file mode 100644
index 0000000..7d78606
--- /dev/null
+++ b/Microcontrollers/opdracht 4.1/opdracht 4.1.cproj	
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="14.0">
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectVersion>7.0</ProjectVersion>
+    <ToolchainName>com.Atmel.AVRGCC8.C</ToolchainName>
+    <ProjectGuid>{2432e6bf-da1e-4668-99bb-59fea1f5b8a2}</ProjectGuid>
+    <avrdevice>ATmega128</avrdevice>
+    <avrdeviceseries>none</avrdeviceseries>
+    <OutputType>Executable</OutputType>
+    <Language>C</Language>
+    <OutputFileName>$(MSBuildProjectName)</OutputFileName>
+    <OutputFileExtension>.elf</OutputFileExtension>
+    <OutputDirectory>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
+    <AssemblyName>opdracht 4.1</AssemblyName>
+    <Name>opdracht 4.1</Name>
+    <RootNamespace>opdracht 4.1</RootNamespace>
+    <ToolchainFlavour>Native</ToolchainFlavour>
+    <KeepTimersRunning>true</KeepTimersRunning>
+    <OverrideVtor>false</OverrideVtor>
+    <CacheFlash>true</CacheFlash>
+    <ProgFlashFromRam>true</ProgFlashFromRam>
+    <RamSnippetAddress />
+    <UncachedRange />
+    <preserveEEPROM>true</preserveEEPROM>
+    <OverrideVtorValue />
+    <BootSegment>2</BootSegment>
+    <ResetRule>0</ResetRule>
+    <eraseonlaunchrule>0</eraseonlaunchrule>
+    <EraseKey />
+    <AsfFrameworkConfig>
+      <framework-data xmlns="">
+        <options />
+        <configurations />
+        <files />
+        <documentation help="" />
+        <offline-documentation help="" />
+        <dependencies>
+          <content-extension eid="atmel.asf" uuidref="Atmel.ASF" version="3.49.1" />
+        </dependencies>
+      </framework-data>
+    </AsfFrameworkConfig>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <ToolchainSettings>
+      <AvrGcc>
+        <avrgcc.common.Device>-mmcu=atmega128 -B "%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128"</avrgcc.common.Device>
+        <avrgcc.common.optimization.RelaxBranches>True</avrgcc.common.optimization.RelaxBranches>
+        <avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
+        <avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
+        <avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
+        <avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
+        <avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
+        <avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
+        <avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
+        <avrgcc.compiler.symbols.DefSymbols>
+          <ListValues>
+            <Value>NDEBUG</Value>
+          </ListValues>
+        </avrgcc.compiler.symbols.DefSymbols>
+        <avrgcc.compiler.directories.IncludePaths>
+          <ListValues>
+            <Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
+          </ListValues>
+        </avrgcc.compiler.directories.IncludePaths>
+        <avrgcc.compiler.optimization.level>Optimize for size (-Os)</avrgcc.compiler.optimization.level>
+        <avrgcc.compiler.optimization.PackStructureMembers>True</avrgcc.compiler.optimization.PackStructureMembers>
+        <avrgcc.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcc.compiler.optimization.AllocateBytesNeededForEnum>
+        <avrgcc.compiler.warnings.AllWarnings>True</avrgcc.compiler.warnings.AllWarnings>
+        <avrgcc.linker.libraries.Libraries>
+          <ListValues>
+            <Value>libm</Value>
+          </ListValues>
+        </avrgcc.linker.libraries.Libraries>
+        <avrgcc.assembler.general.IncludePaths>
+          <ListValues>
+            <Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
+          </ListValues>
+        </avrgcc.assembler.general.IncludePaths>
+      </AvrGcc>
+    </ToolchainSettings>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <ToolchainSettings>
+      <AvrGcc>
+        <avrgcc.common.Device>-mmcu=atmega128 -B "%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega128"</avrgcc.common.Device>
+        <avrgcc.common.optimization.RelaxBranches>True</avrgcc.common.optimization.RelaxBranches>
+        <avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
+        <avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
+        <avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
+        <avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
+        <avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
+        <avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
+        <avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
+        <avrgcc.compiler.symbols.DefSymbols>
+          <ListValues>
+            <Value>DEBUG</Value>
+          </ListValues>
+        </avrgcc.compiler.symbols.DefSymbols>
+        <avrgcc.compiler.directories.IncludePaths>
+          <ListValues>
+            <Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
+          </ListValues>
+        </avrgcc.compiler.directories.IncludePaths>
+        <avrgcc.compiler.optimization.level>Optimize debugging experience (-Og)</avrgcc.compiler.optimization.level>
+        <avrgcc.compiler.optimization.PackStructureMembers>True</avrgcc.compiler.optimization.PackStructureMembers>
+        <avrgcc.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcc.compiler.optimization.AllocateBytesNeededForEnum>
+        <avrgcc.compiler.optimization.DebugLevel>Default (-g2)</avrgcc.compiler.optimization.DebugLevel>
+        <avrgcc.compiler.warnings.AllWarnings>True</avrgcc.compiler.warnings.AllWarnings>
+        <avrgcc.linker.libraries.Libraries>
+          <ListValues>
+            <Value>libm</Value>
+          </ListValues>
+        </avrgcc.linker.libraries.Libraries>
+        <avrgcc.assembler.general.IncludePaths>
+          <ListValues>
+            <Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
+          </ListValues>
+        </avrgcc.assembler.general.IncludePaths>
+        <avrgcc.assembler.debugging.DebugLevel>Default (-Wa,-g)</avrgcc.assembler.debugging.DebugLevel>
+      </AvrGcc>
+    </ToolchainSettings>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="lcd_control.c">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="lcd_control.h">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="main.c">
+      <SubType>compile</SubType>
+    </Compile>
+  </ItemGroup>
+  <Import Project="$(AVRSTUDIO_EXE_PATH)\\Vs\\Compiler.targets" />
+</Project>
\ No newline at end of file