diff --git a/final_project/312_final.code-workspace b/final_project/312_final.code-workspace
new file mode 100644
index 0000000..72f846f
--- /dev/null
+++ b/final_project/312_final.code-workspace
@@ -0,0 +1,15 @@
+{
+	"folders": [
+		{
+			"path": "sd_reader"
+		},
+		{
+			"path": "lcd_disp"
+		}
+	],
+	"settings": {
+		"files.associations": {
+			"io.h": "c"
+		}
+	}
+}
\ No newline at end of file
diff --git a/final_project/comms/comms.c b/final_project/comms/comms.c
new file mode 100644
index 0000000..2a66e56
--- /dev/null
+++ b/final_project/comms/comms.c
@@ -0,0 +1,35 @@
+#include "comms.h"
+
+inline void comms_send_command(comms_cmd_t cmd) {
+    while (! (UCSRA & (1 << UDRE)));
+    UDR = cmd;
+}
+
+inline void comms_add_file(uint8_t id, char* filename) {
+    uint8_t len = strlen(filename);
+
+    comms_send_command(COMMS_CMD_ADD_FILE);
+    comms_send_command((comms_cmd_t) id);
+
+    uint8_t i = 0;
+    while (i < len) {
+        comms_send_command((comms_cmd_t) filename[i]);
+    }
+}
+
+inline void comms_select_file(uint8_t id) {
+    comms_send_command(COMMS_CMD_SELECT_FILE);
+    comms_send_command((comms_cmd_t) id);
+}
+
+inline void comms_clear() {
+    comms_send_command(COMMS_CMD_CLR);
+}
+
+inline void comms_play() {
+    comms_send_command(COMMS_CMD_PLAY);
+}
+
+inline void comms_pause() {
+    comms_send_command(COMMS_CMD_PLAY);
+}
\ No newline at end of file
diff --git a/final_project/comms/comms.h b/final_project/comms/comms.h
new file mode 100644
index 0000000..ad660f5
--- /dev/null
+++ b/final_project/comms/comms.h
@@ -0,0 +1,46 @@
+#ifndef COMMS_H_
+#define COMMS_H_
+
+#include <avr/io.h>
+#include <string.h>
+
+/**
+ * Our format goes like this:
+ * 
+ * 1 byte command, with data after
+ */
+
+
+typedef enum {
+    COMMS_CMD_CLR = 0U,         //! Clears LCD and all file names
+    COMMS_CMD_ADD_FILE,         //! Adds a file to the list of files to display, data is 1 byte for ID, 1 byte for strlen, n bytes for string
+    COMMS_CMD_SELECT_FILE,      //! selects a file from the given list to play, data is 1 byte for id
+    COMMS_CMD_PLAY,             //! Starts playing file
+    COMMS_CMD_PAUSE             //! pauses playing file
+} comms_cmd_t;
+
+/** @brief Inline function to send commands and values.
+ */
+inline void comms_send_command(comms_cmd_t cmd);
+
+/** @brief Adds a file to the list on the LCD side.
+ */
+inline void comms_add_file(uint8_t id, char* filename);
+
+/** @brief Selects a file from the list on the DAC side.
+ */
+inline void comms_select_file(uint8_t id);
+
+/** @brief Clears the LCD list of files.
+ */
+inline void comms_clear();
+
+/** @brief Starts playing song.
+ */
+inline void comms_play();
+
+/** @brief Pauses playing song.
+ */
+inline void comms_pause();
+
+#endif
\ No newline at end of file
diff --git a/final_project/lcd_disp/.vscode/c_cpp_properties.json b/final_project/lcd_disp/.vscode/c_cpp_properties.json
new file mode 100644
index 0000000..6fafcf7
--- /dev/null
+++ b/final_project/lcd_disp/.vscode/c_cpp_properties.json
@@ -0,0 +1,18 @@
+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "intelliSenseMode": "gcc-x64",
+            "compilerPath": "/usr/lib/ccache/avr-gcc",
+            "cStandard": "c99",
+            "cppStandard": "c++17",
+            "compilerArgs": [
+                "-Wall", "-pedantic", "-mmcu=attiy2313a"
+            ],
+            "defines": [
+                "F_CPU=16000000"
+            ]
+        }
+    ],
+    "version": 4
+}
\ No newline at end of file
diff --git a/final_project/lcd_disp/.vscode/tasks.json b/final_project/lcd_disp/.vscode/tasks.json
new file mode 100644
index 0000000..794c3b1
--- /dev/null
+++ b/final_project/lcd_disp/.vscode/tasks.json
@@ -0,0 +1,19 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "make",
+      "type": "shell",
+      "command": "make",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": [
+        "$gcc"
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/final_project/lcd_disp/Makefile b/final_project/lcd_disp/Makefile
new file mode 100644
index 0000000..ace6c7b
--- /dev/null
+++ b/final_project/lcd_disp/Makefile
@@ -0,0 +1,52 @@
+
+NAME := sd-reader
+HEX := $(NAME).hex
+OUT := $(NAME).out
+MAP := $(NAME).map
+SOURCES := $(wildcard *.c)
+HEADERS := $(wildcard *.h)
+OBJECTS := $(patsubst %.c,%.o,$(SOURCES))
+
+MCU := attiny2313a
+MCU_AVRDUDE := t2313
+MCU_FREQ := 8000000UL
+
+CC := avr-gcc
+OBJCOPY := avr-objcopy
+SIZE := avr-size -A
+DOXYGEN := doxygen
+
+CFLAGS := -Wall -pedantic -mmcu=$(MCU) -std=c99 -g -Os -DF_CPU=$(MCU_FREQ)
+
+all: $(HEX)
+
+clean:
+	rm -f $(HEX) $(OUT) $(MAP) $(OBJECTS)
+	rm -rf doc/html
+
+flash: $(HEX)
+	avrdude -y -c avr910 -p $(MCU_AVRDUDE) -U flash:w:$(HEX)
+
+$(HEX): $(OUT)
+	$(OBJCOPY) -R .eeprom -O ihex $< $@
+
+$(OUT): $(OBJECTS)
+	$(CC) $(CFLAGS) -o $@ -Wl,-Map,$(MAP) $^
+	@echo
+	@$(SIZE) $@
+	@echo
+
+%.o: %.c $(HEADERS)
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+%.pp: %.c
+	$(CC) $(CFLAGS) -E -o $@ $<
+
+%.ppo: %.c
+	$(CC) $(CFLAGS) -E $<
+
+doc: $(HEADERS) $(SOURCES) Doxyfile
+	$(DOXYGEN) Doxyfile
+
+.PHONY: all clean flash doc
+
diff --git a/final_project/lcd_disp/comms.c b/final_project/lcd_disp/comms.c
new file mode 120000
index 0000000..14d83ba
--- /dev/null
+++ b/final_project/lcd_disp/comms.c
@@ -0,0 +1 @@
+../comms/comms.c
\ No newline at end of file
diff --git a/final_project/lcd_disp/comms.h b/final_project/lcd_disp/comms.h
new file mode 120000
index 0000000..ad5c9e6
--- /dev/null
+++ b/final_project/lcd_disp/comms.h
@@ -0,0 +1 @@
+../comms/comms.h
\ No newline at end of file
diff --git a/final_project/sd_reader/lcd.c b/final_project/lcd_disp/lcd.c
similarity index 100%
rename from final_project/sd_reader/lcd.c
rename to final_project/lcd_disp/lcd.c
diff --git a/final_project/sd_reader/lcd.h b/final_project/lcd_disp/lcd.h
similarity index 97%
rename from final_project/sd_reader/lcd.h
rename to final_project/lcd_disp/lcd.h
index 8568357..0dbc197 100644
--- a/final_project/sd_reader/lcd.h
+++ b/final_project/lcd_disp/lcd.h
@@ -128,7 +128,7 @@
 #if LCD_IO_MODE
 
 #ifndef LCD_PORT
-#define LCD_PORT         PORTC        /**< port for the LCD lines   */
+#define LCD_PORT         PORTB        /**< port for the LCD lines   */
 #endif
 #ifndef LCD_DATA0_PORT
 #define LCD_DATA0_PORT   LCD_PORT     /**< port for 4bit data bit 0 */
diff --git a/final_project/lcd_disp/main.c b/final_project/lcd_disp/main.c
new file mode 100644
index 0000000..c478520
--- /dev/null
+++ b/final_project/lcd_disp/main.c
@@ -0,0 +1,31 @@
+#include <avr/io.h>
+#include "lcd.h"
+
+#define USART_BAUDRATE 9600     //! USART baudrate, change this to set it.
+#define UBRR_VALUE (((F_CPU/(USART_BAUDRATE*16UL)))-1)
+
+/** @brief Sets up USART for TX and RX with a baud rate of USART_BAUDRATE
+ */
+void usart_init() {
+    // initialize USART
+	UBRRL = UBRR_VALUE & 255; 
+	UBRRH = UBRR_VALUE >> 8;
+	UCSRB = (1 << TXEN) | (1 << RXEN); // fire-up USART
+	UCSRC = (1 << UCSZ1) | (1 << UCSZ0); // fire-up USART
+
+
+    UCSRB |= (1 << RXCIE);
+}
+
+int main() {
+    usart_init();
+
+    lcd_clrscr();
+    lcd_gotoxy(0,0);
+
+    // Main loop
+    while (1) {
+
+    }
+
+}
\ No newline at end of file
diff --git a/final_project/lcd_disp/sd-reader.map b/final_project/lcd_disp/sd-reader.map
new file mode 100644
index 0000000..8fab970
--- /dev/null
+++ b/final_project/lcd_disp/sd-reader.map
@@ -0,0 +1,421 @@
+Archive member included to satisfy reference by file (symbol)
+
+/usr/lib/gcc/avr/5.4.0/avr25/tiny-stack/libgcc.a(_exit.o)
+                              /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o (exit)
+
+Memory Configuration
+
+Name             Origin             Length             Attributes
+text             0x0000000000000000 0x0000000000002000 xr
+data             0x0000000000800060 0x000000000000ffa0 rw !x
+eeprom           0x0000000000810000 0x0000000000010000 rw !x
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+lock             0x0000000000830000 0x0000000000000400 rw !x
+signature        0x0000000000840000 0x0000000000000400 rw !x
+user_signatures  0x0000000000850000 0x0000000000000400 rw !x
+*default*        0x0000000000000000 0xffffffffffffffff
+
+Linker script and memory map
+
+LOAD /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+LOAD lcd.o
+LOAD comms.o
+LOAD main.o
+START GROUP
+LOAD /usr/lib/gcc/avr/5.4.0/avr25/tiny-stack/libgcc.a
+LOAD /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/libm.a
+LOAD /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/libc.a
+LOAD /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/libattiny2313a.a
+END GROUP
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+                0x0000000000000400                __USER_SIGNATURE_REGION_LENGTH__ = DEFINED (__USER_SIGNATURE_REGION_LENGTH__)?__USER_SIGNATURE_REGION_LENGTH__:0x400
+
+.hash
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+ *(.stab.exclstr)
+
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+
+.stab.indexstr
+ *(.stab.indexstr)
+
+.comment        0x0000000000000000       0x11
+ *(.comment)
+ .comment       0x0000000000000000       0x11 lcd.o
+                                         0x12 (size before relaxing)
+ .comment       0x0000000000000011       0x12 comms.o
+ .comment       0x0000000000000011       0x12 main.o
+
+.note.gnu.avr.deviceinfo
+                0x0000000000000000       0x40
+ .note.gnu.avr.deviceinfo
+                0x0000000000000000       0x40 /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+
+.note.gnu.build-id
+ *(.note.gnu.build-id)
+
+.debug
+ *(.debug)
+
+.line
+ *(.line)
+
+.debug_srcinfo
+ *(.debug_srcinfo)
+
+.debug_sfnames
+ *(.debug_sfnames)
+
+.debug_aranges
+ *(.debug_aranges)
+
+.debug_pubnames
+ *(.debug_pubnames)
+
+.debug_info     0x0000000000000000      0x456
+ *(.debug_info .gnu.linkonce.wi.*)
+ .debug_info    0x0000000000000000      0x456 /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+
+.debug_abbrev   0x0000000000000000      0x41b
+ *(.debug_abbrev)
+ .debug_abbrev  0x0000000000000000      0x41b /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+
+.debug_line     0x0000000000000000       0x1a
+ *(.debug_line .debug_line.* .debug_line_end)
+ .debug_line    0x0000000000000000       0x1a /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+
+.debug_frame
+ *(.debug_frame)
+
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+ *(.debug_str)
+ .debug_str     0x0000000000000000      0x17b /usr/lib/gcc/avr/5.4.0/../../../avr/lib/avr25/tiny-stack/crtattiny2313a.o
+
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+ *(.debug_loc)
+
+.debug_macinfo
+ *(.debug_macinfo)
+
+.debug_weaknames
+ *(.debug_weaknames)
+
+.debug_funcnames
+ *(.debug_funcnames)
+
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+ *(.debug_typenames)
+
+.debug_varnames
+ *(.debug_varnames)
+
+.debug_pubtypes
+ *(.debug_pubtypes)
+
+.debug_ranges
+ *(.debug_ranges)
+
+.debug_macro
+ *(.debug_macro)
+OUTPUT(sd-reader.out elf32-avr)
+LOAD linker stubs
diff --git a/final_project/lcd_disp/sd-reader.out b/final_project/lcd_disp/sd-reader.out
new file mode 100755
index 0000000..f2b6798
Binary files /dev/null and b/final_project/lcd_disp/sd-reader.out differ
diff --git a/final_project/sd_reader/.vscode/c_cpp_properties.json b/final_project/sd_reader/.vscode/c_cpp_properties.json
new file mode 100644
index 0000000..d9993e3
--- /dev/null
+++ b/final_project/sd_reader/.vscode/c_cpp_properties.json
@@ -0,0 +1,18 @@
+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "intelliSenseMode": "gcc-x64",
+            "compilerPath": "/usr/lib/ccache/avr-gcc",
+            "cStandard": "c99",
+            "cppStandard": "c++17",
+            "compilerArgs": [
+                "-Wall", "-pedantic", "-mmcu=atmega328"
+            ],
+            "defines": [
+                "F_CPU=16000000"
+            ]
+        }
+    ],
+    "version": 4
+}
\ No newline at end of file
diff --git a/final_project/sd_reader/Makefile b/final_project/sd_reader/Makefile
index 768bb62..80e40a1 100644
--- a/final_project/sd_reader/Makefile
+++ b/final_project/sd_reader/Makefile
@@ -7,8 +7,8 @@ SOURCES := $(wildcard *.c)
 HEADERS := $(wildcard *.h)
 OBJECTS := $(patsubst %.c,%.o,$(SOURCES))
 
-MCU := atmega168
-MCU_AVRDUDE := m168
+MCU := atmega328
+MCU_AVRDUDE := m328
 MCU_FREQ := 16000000UL
 
 CC := avr-gcc
diff --git a/final_project/sd_reader/main.c b/final_project/sd_reader/main.c
index 8565352..2eb64c7 100644
--- a/final_project/sd_reader/main.c
+++ b/final_project/sd_reader/main.c
@@ -15,7 +15,6 @@
 #include "partition.h"
 #include "sd_raw.h"
 #include "sd_raw_config.h"
-#include "lcd.h"
 
 #define DEBUG 1
 
@@ -212,7 +211,7 @@ int main()
     lcd_init(LCD_DISP_ON);
 
     /* we will just use ordinary idle mode */
-    set_sleep_mode(SLEEP_MODE_IDLE);
+    //set_sleep_mode(SLEEP_MODE_IDLE);
 
     /* open first partition */
     struct partition_struct* partition = partition_open(sd_raw_read,
diff --git a/final_project/sd_reader/wav.h b/final_project/sd_reader/wav.h
new file mode 100644
index 0000000..1d7bbf9
--- /dev/null
+++ b/final_project/sd_reader/wav.h
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+/** @brief Struct to contain chunk header information
+ */
+typedef struct {
+    uint32_t ckID;                      //! Chunk type
+    uint32_t cksize;                    //! Size of chunk in bytes
+} ck_hdr_t;
+
+/** @brief Struct to contain master WAV chunk info
+ */
+struct {
+    char WAVEID[4];                     //! WAVE ID
+} ck_master_t;
+
+/** @brief Types of extension that a fmt type chunk can have
+ */
+typedef enum {
+    CK_FMT_STD = 0U,
+    CK_FMT_NOEXT,
+    CK_FMT_EXT,
+} ck_fmt_ext_t;
+
+/** @brief Struct to hold fmt chunk data
+ */
+struct {
+    struct data {
+        uint16_t wFormatTag;            //! Type of data format.
+        uint16_t nChannels;             //! Number of channels
+        uint32_t nSamplesPerSec;        //! Sample rate
+        uint32_t nAvgBytesPerSec;       //! Data rate
+        uint16_t nBlockAlign;           //! Block size in bytes for data
+        uint16_t wBitsPerSample;        //! Bits per sample
+        uint16_t cbSize;                //! Size of fmt type extension. Only valid if chunk size is 18 or 40.
+        uint16_t wValidBitsPerSample;   //! Number of valid bits per sample. Only valid if chunk size is 40
+        uint32_t dwChannelMask;         //! Speaker position mask. Only valid if chunk size is 40
+        uint8_t[16] SubFormat;          //! GUID for data format. Only vaid if chunk size is 40
+    };
+
+    ck_fmt_ext_t type;
+} ck_fmt_t;
diff --git a/lab_3.zip b/lab_3.zip
new file mode 100644
index 0000000..004aa41
Binary files /dev/null and b/lab_3.zip differ
diff --git a/lab_3/i2cmaster/i2cmaster.zip b/lab_3/i2cmaster/i2cmaster.zip
deleted file mode 100644
index b51c7dd..0000000
Binary files a/lab_3/i2cmaster/i2cmaster.zip and /dev/null differ