diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53752db
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+output
diff --git a/api/shellmatta.h b/api/shellmatta.h
new file mode 100644
index 0000000..213b9c4
--- /dev/null
+++ b/api/shellmatta.h
@@ -0,0 +1,41 @@
+
+#include <stdint.h>
+
+typedef enum
+{
+	  SHELLMATTA_OK = 0u
+	, SHELLMATTA_ERROR
+	, SHELLMATTA_CONTINUE
+	, SHELLMATTA_USE_FAULT
+} shellmatta_retCode_t;
+
+typedef shellmatta_retCode_t (*shellmatta_cmdFct_t)(int argc, char *argv[]);
+
+typedef struct shellmatta_cmd
+{
+	char *cmd;
+	char *cmdAlias;
+	char *helpText;
+	char *usageText;
+	shellmatta_cmdFct_t cmdFct;
+	struct shellmatta_cmd *next;
+} shellmatta_cmd_t;
+
+typedef struct
+{
+	uint8_t *buffer;
+	uint32_t bufferSize;
+	uint32_t bufferWritePointer;
+	uint32_t bufferReadPointer;
+	uint8_t *historyBuffer;
+	uint32_t historyBufferSize;
+	shellmatta_cmd_t *cmdList;
+} shellmatta_instance_t;
+
+extern void shellmatta_doInit(shellmatta_instance_t *inst, uint8_t *buffer, uint32_t bufferSize, uint8_t *historyBuffer, uint32_t historyBufferSize);
+extern void shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd);
+extern void shellmatta_doTask(shellmatta_instance_t *inst, uint32_t time);
+extern void shellmatta_processData(shellmatta_instance_t *inst, char *data, uint32_t size);
+extern void shellmatta_printf(shellmatta_instance_t *inst, const char *fmt, ...);
+extern void shellmatta_getArg(uint32_t cnt, uint8_t *arg);
+
diff --git a/src/shellmatta.c b/src/shellmatta.c
new file mode 100644
index 0000000..e473b40
--- /dev/null
+++ b/src/shellmatta.c
@@ -0,0 +1,91 @@
+
+#include "shellmatta.h"
+#include <stdio.h>
+#include <stddef.h>
+#include <string.h>
+
+void shellmatta_doInit(shellmatta_instance_t *inst, uint8_t *buffer, uint32_t bufferSize, uint8_t *historyBuffer, uint32_t historyBufferSize)
+{
+	inst->buffer = buffer;
+	inst->bufferSize = bufferSize;
+	inst->bufferReadPointer = 0u;
+	inst->bufferWritePointer = 0u;
+	inst->cmdList = NULL;
+	inst->historyBuffer = historyBuffer;
+	inst->historyBufferSize = historyBufferSize;
+}
+
+void shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd)
+{
+	shellmatta_cmd_t *tempCmd = inst->cmdList;
+
+	if(NULL == tempCmd)
+	{
+		inst->cmdList = cmd;
+		cmd->next = NULL;
+	}
+	else
+	{
+		while(tempCmd->next != NULL)
+		{
+			tempCmd = tempCmd->next;
+		}
+		tempCmd->next = cmd;
+		cmd->next = NULL;
+	}
+}
+
+void shellmatta_doTask(shellmatta_instance_t *inst, uint32_t time)
+{
+
+}
+
+void shellmatta_processData(shellmatta_instance_t *inst, char *data, uint32_t size)
+{
+	printf("%c", *data);
+
+	if(0x0A == *data)
+	{
+		shellmatta_cmd_t *cmd = inst->cmdList;
+		uint8_t cmdExecuted = 0u;
+		inst->buffer[inst->bufferWritePointer] = 0u;
+
+		while(NULL != cmd)
+		{
+			if(0 == strcmp(inst->buffer, cmd->cmd))
+			{
+				cmdExecuted = 1u;
+				char *blubb[10];
+				blubb[0] = inst->buffer;
+				cmd->cmdFct(1, blubb);
+				cmd = NULL;
+			}
+			else
+			{
+				cmd = cmd->next;
+			}
+		}
+
+		if(cmdExecuted == 0u)
+		{
+			printf("failed to find command");
+		}
+
+		inst->bufferWritePointer = 0u;
+	}
+	else
+	{
+		inst->buffer[inst->bufferWritePointer] = *data;
+		inst->bufferWritePointer ++;
+	}
+}
+
+void shellmatta_printf(shellmatta_instance_t *inst, const char *fmt, ...)
+{
+	printf(fmt);
+}
+
+void shellmatta_getArg(uint32_t cnt, uint8_t *arg)
+{
+
+}