Merge branch 'qt-gui-meshconnector-serial' into dev

12 files changed, 450 insertions, 80 deletions

diff --git a/confui/confui.pro b/confui/confui.pro
index 2c4df61..f73465b 100644
--- a/confui/confui.pro
+++ b/confui/confui.pro
@@ -1,24 +1,38 @@
-QT += core gui widgets
+QT += core gui widgets serialport
 
 SOURCES += \
-    main.cpp \
-    mainwindow.cpp \
-		mesh_connector.cpp \
-		ui_tab_automations.cpp \
-		ui_tab_node_overview.cpp \
-		ui_node.cpp \
-		ui_automation.cpp \
-		ui_scroll_container.cpp
+	main.cpp \
+	mainwindow.cpp \
+	mesh_connector.cpp \
+	ui_tab_automations.cpp \
+	ui_tab_node_overview.cpp \
+	ui_node.cpp \
+	ui_automation.cpp \
+	ui_scroll_container.cpp \
+	serial.cpp \
+	../shared/bin.c \
+	../shared/protocol.c \
+	../shared/serial_parse.c \
+	../shared/pclient.c
 
 HEADERS += \
-    mainwindow.h \
-		mesh_connector.h \
-		ui_tab_automations.h \
-		ui_tab_node_overview.h \
-		ui_node.h \
-		ui_automation.h \
-		ui_scroll_container.h
+	mainwindow.h \
+	mesh_connector.h \
+	ui_tab_automations.h \
+	ui_tab_node_overview.h \
+	ui_node.h \
+	ui_automation.h \
+	ui_scroll_container.h \
+	serial.h \
+	../shared/bin.h \
+	../shared/protocol.h \
+	../shared/serial_parse.h \
+	../shared/consts.h \
+	main.h \
+	../shared/pclient.h
 
 CONFIG += c++17
 CONFIG += force_debug_info
 QMAKE_CXXFLAGS += -Wno-missing-field-initializers
+QMAKE_CFLAGS += -std=c11
+QMAKE_CFLAGS += -Wno-c99-designator
diff --git a/confui/main.cpp b/confui/main.cpp
index 6c3ab56..ae52a61 100644
--- a/confui/main.cpp
+++ b/confui/main.cpp
@@ -1,10 +1,18 @@
+#include "main.h"
 #include "mainwindow.h"
 
-#include <QApplication>
+extern "C" {
+static const uint16_t _test	 = 1;
+static const uint8_t *_ptest = (uint8_t *)&_test;
+uint8_t g_cd_endianness;
+}
+
+CDMainWindow* g_cd_main_window = nullptr;
 
 int main(int argc, char *argv[]) {
-	QApplication a(argc, argv);
-	CDMainWindow w;
-	w.show();
-	return a.exec();
+	g_cd_endianness = *_ptest;
+	g_cd_app = new QApplication(argc, argv);
+	g_cd_main_window = new CDMainWindow();
+	g_cd_main_window->show();
+	return g_cd_app->exec();
 }
diff --git a/confui/main.h b/confui/main.h
new file mode 100644
index 0000000..10e9da6
--- /dev/null
+++ b/confui/main.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <QApplication>
+
+extern QApplication* g_cd_app;
+int main(int argc, char *argv[]);
+
diff --git a/confui/mainwindow.cpp b/confui/mainwindow.cpp
index cff5002..4c9b857 100644
--- a/confui/mainwindow.cpp
+++ b/confui/mainwindow.cpp
@@ -1,18 +1,29 @@
 #include <QGridLayout>
 #include <QMenuBar>
 #include <QTabWidget>
+#include <iostream>
 
 #include "mainwindow.h"
 #include "ui_tab_automations.h"
 #include "ui_tab_node_overview.h"
+#include "serial.h"
+#include "../shared/pclient.h"
+#include "main.h"
 
 CDMeshConnector *g_cd_mesh_connector = nullptr;
+CDSerialConnector *g_cd_serial = nullptr;
+QApplication* g_cd_app = nullptr;
 
-CDMainWindow::~CDMainWindow() { delete this->mesh_connector; }
+CDMainWindow::~CDMainWindow() {
+	delete g_cd_mesh_connector;
+	delete g_cd_serial;
+}
 
 CDMainWindow::CDMainWindow(QWidget *parent) : QMainWindow(parent) {
 	g_cd_mesh_connector	 = new CDMeshConnector();
 	this->mesh_connector = g_cd_mesh_connector;
+	g_cd_serial = new CDSerialConnector();
+	this->serial_connector = g_cd_serial;
 
 	menu_bar = new QMenuBar(this);
 
@@ -24,6 +35,10 @@ CDMainWindow::CDMainWindow(QWidget *parent) : QMainWindow(parent) {
 	tab_bar_widget->addTab(this->node_overview_tab, "node overview");
 	tab_bar_widget->addTab(this->automations_tab, "automations");
 
+	// manually connect to serial port
+	if (g_cd_app->arguments().length() > 1  && g_cd_app->arguments().at(1).length() > 0)
+		g_cd_serial->connect(g_cd_app->arguments().at(1).toStdString());
+
 	setMenuBar(menu_bar);
 	setCentralWidget(tab_bar_widget);
 	update();
@@ -45,10 +60,24 @@ void CDMainWindow::update() {
 	QAction *menu_options_add_automation = menu_options->addAction("add automation");
 	connect(menu_options_add_automation, &QAction::triggered, this, &CDMainWindow::menu_add_automation);
 
-	QMenu *menu_options_serialport = menu_options->addMenu("serial port (FIXME)");
-
-	menu_options_serialport->addAction("FIXME A");
-	menu_options_serialport->addAction("FIXME B");
+	QString serial_port_menu_label = "serial port";
+	string port_name = g_cd_serial->get_port();
+	if (port_name.size() > 0) {
+		serial_port_menu_label.append(" (");
+		serial_port_menu_label.append(QString::fromStdString(port_name));
+		serial_port_menu_label.append(")");
+	}
+	QMenu *menu_options_serialport = menu_options->addMenu(serial_port_menu_label);
+
+	vector<string> ports = CDSerialConnector::get_ports();
+	for (string port : ports) {
+		QAction* menu_port = menu_options_serialport->addAction(QString::fromStdString(port));
+		connect(menu_port, &QAction::triggered, this, [this, port](){ menu_set_serial_port(port); });
+	}
+
+	cd_s_bin* msg = cd_cmd_gen_get_node(true, NULL);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
 void CDMainWindow::menu_refresh() { update(); }
@@ -57,3 +86,9 @@ void CDMainWindow::menu_add_automation() {
 	g_cd_mesh_connector->create_link();
 	update();
 }
+
+void CDMainWindow::menu_set_serial_port(string new_port) {
+	g_cd_serial->disconnect();
+	g_cd_serial->connect(new_port);
+	update();
+}
diff --git a/confui/mainwindow.h b/confui/mainwindow.h
index 3a0b4f7..4093cd1 100644
--- a/confui/mainwindow.h
+++ b/confui/mainwindow.h
@@ -6,9 +6,13 @@
 #include <QDebug>
 
 #include "mesh_connector.h"
+#include "serial.h"
 
 class CDAutomationsTabWidget;
 class CDNodeOverviewTabWidget;
+class CDMainWindow;
+
+extern CDMainWindow *g_cd_main_window;
 
 /**
  * @brief main window
@@ -26,6 +30,7 @@ private:
 
 public:
 	CDMeshConnector *mesh_connector = nullptr;
+	CDSerialConnector *serial_connector = nullptr;
 
 	CDMainWindow(QWidget *parent = nullptr);
 	~CDMainWindow();
@@ -35,4 +40,6 @@ public:
 	virtual void menu_refresh();
 	/** @brief menu bar add automation action handler */
 	virtual void menu_add_automation();
+	/** @brief menu bar set serial port action handler */
+	void menu_set_serial_port(string new_port);
 };
diff --git a/confui/makefile b/confui/makefile
index 930daed..2e22e20 100644
--- a/confui/makefile
+++ b/confui/makefile
@@ -7,12 +7,6 @@ endif
 
 include confui.mk
 
-OBJECTS += $(patsubst %.c,%.o, $(wildcard ../shared/*.c))
-confui: $(OBJECTS)
-
-../shared/%.o: ../shared/%.c
-	$(CC) -c $(CFLAGS) -w $< -o $@
-
 FMT_FILES := $(DIST)
 FMT_FILES := $(filter-out .%,$(FMT_FILES)) # filter hidden files
 FMT_FILES := $(filter-out /%,$(FMT_FILES)) # filter files outside working directory
@@ -24,3 +18,6 @@ FMT_FILES := $(filter-out %.pro,$(FMT_FILES)) # filter *.pro
 format:
 	clang-format -i $(FMT_FILES)
 	clang-tidy --fix-errors $(FMT_FILES)
+
+compile_commands:
+	compiledb make -Bn
diff --git a/confui/mesh_connector.cpp b/confui/mesh_connector.cpp
index 5b65d31..7ef0f02 100644
--- a/confui/mesh_connector.cpp
+++ b/confui/mesh_connector.cpp
@@ -4,6 +4,7 @@
 #include <cstring>
 #include <stdio.h>
 
+#include "../shared/pclient.h"
 #include "mesh_connector.h"
 
 using std::pair;
@@ -16,31 +17,32 @@ cd_link_t CDMeshConnector::get_new_link_id() { return _fresh_link_id++; }
 cd_uid_t CDMeshConnector::get_new_node_id() { return _fresh_node_id++; }
 
 CDMeshConnector::CDMeshConnector() {
-	cd_uid_t berta = create_node({
-		.address	 = {0x00, 0xff, 0x21, 0x69, 0xf2, 0x31},
-		.name_len	 = 5,
-		.name		 = "berta",
-		.light_on	 = false,
-		.provisioned = false,
-	});
-
-	cd_uid_t gerrit = create_node({
-		.address	 = {0x0e, 0xf9, 0x46, 0x4d, 0xe8, 0x02},
-		.name_len	 = 6,
-		.name		 = "gerrit",
-		.light_on	 = false,
-		.provisioned = false,
-	});
-
-	create_link(berta, berta, CD_AUTOMATION_TYPE_TOGGLE);
-	create_link(berta, berta, CD_AUTOMATION_TYPE_TOGGLE);
-	create_link(gerrit, berta, CD_AUTOMATION_TYPE_TURN_OFF);
-	create_link(gerrit, gerrit, CD_AUTOMATION_TYPE_TURN_ON);
+	// cd_uid_t berta = create_node({
+	// 	.address	 = {0x00, 0xff, 0x21, 0x69, 0xf2, 0x31},
+	// 	.name_len	 = 5,
+	// 	.name		 = "berta",
+	// 	.light_on	 = false,
+	// 	.provisioned = false,
+	// });
+
+	// cd_uid_t gerrit = create_node({
+	// 	.address	 = {0x0e, 0xf9, 0x46, 0x4d, 0xe8, 0x02},
+	// 	.name_len	 = 6,
+	// 	.name		 = "gerrit",
+	// 	.light_on	 = false,
+	// 	.provisioned = false,
+	// });
+
+	// create_link(berta, berta, CD_AUTOMATION_TYPE_TOGGLE);
+	// create_link(berta, berta, CD_AUTOMATION_TYPE_TOGGLE);
+	// create_link(gerrit, berta, CD_AUTOMATION_TYPE_TURN_OFF);
+	// create_link(gerrit, gerrit, CD_AUTOMATION_TYPE_TURN_ON);
 	return;
 }
 
 cd_uid_t CDMeshConnector::create_node(cd_s_node node) {
 	cd_s_node *_node = (cd_s_node *)malloc(sizeof(cd_s_node));
+	// TODO: handle empty structs
 
 	// id
 	cd_uid_t id = get_new_node_id();
@@ -98,7 +100,7 @@ map<cd_link_t, cd_s_automation *> CDMeshConnector::get_links(bool valid) {
 	return links;
 }
 
-void CDMeshConnector::update_link(cd_s_automation *automation) {
+void CDMeshConnector::update_link(cd_s_automation *automation, bool publish) {
 	printf("link[%d]", automation->id);
 	if (automation->valid) {
 		printf(" = %.*s %s %.*s", (int)automation->button->name_len, automation->button->name,
@@ -110,9 +112,16 @@ void CDMeshConnector::update_link(cd_s_automation *automation) {
 		printf(" (invalid)");
 	}
 	printf("\n");
+
+	if (!publish) return;
+	if (!automation->valid) return;
+
+	cd_s_bin* msg = cd_cmd_gen_post_link_add(automation->button->uuid, automation->light->uuid, automation->type);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
-cd_link_t CDMeshConnector::create_link(cd_uid_t button, cd_uid_t light, enum cd_e_automation_type type) {
+cd_link_t CDMeshConnector::create_link(cd_uid_t button, cd_uid_t light, cd_e_automation_type type) {
 	cd_link_t id = get_new_link_id();
 
 	cd_s_automation *automation = (cd_s_automation *)malloc(sizeof(cd_s_automation));
@@ -146,11 +155,19 @@ cd_link_t CDMeshConnector::create_link() {
 	return id;
 }
 
-void CDMeshConnector::remove_link(cd_link_t link_handle) {
+void CDMeshConnector::remove_link(cd_link_t link_handle, bool publish) {
 	printf("remove link[%d]\n", link_handle);
-	if (_links[link_handle] != nullptr) free(_links[link_handle]);
+	if (_links.count(link_handle) == 0) return; // invalid handle
+	if (_links[link_handle] == nullptr) return; // already removed link
+
+	if (publish) {
+		cd_s_bin* msg = cd_cmd_gen_post_link_rm(_links[link_handle]->button->uuid, _links[link_handle]->light->uuid);
+		cd_pclient_send(msg);
+		free(msg);
+	}
+
+	free(_links[link_handle]);
 	_links[link_handle] = nullptr;
-	return;
 }
 
 void CDMeshConnector::remove_node(cd_uid_t node_handle) {
@@ -160,21 +177,32 @@ void CDMeshConnector::remove_node(cd_uid_t node_handle) {
 	return;
 }
 
-void CDMeshConnector::update_node(cd_s_node *node_ptr) {
+void CDMeshConnector::update_node(cd_s_node *node_ptr, bool publish) {
 	printf("turning %.*s %s\n", (int)node_ptr->name_len, node_ptr->name, node_ptr->light_on ? "on" : "off");
-	return;
+
+	if (!publish) return;
+
+	cd_s_bin* msg = cd_cmd_gen_post_led(node_ptr->light_on, node_ptr->uuid);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
 void CDMeshConnector::network_join_node(cd_s_node *node_ptr) {
-	node_ptr->provisioned = true;
+	node_ptr->provisioned = true; //TODO: await success
 	printf("join %.*s into network\n", (int)node_ptr->name_len, node_ptr->name);
-	return;
+
+	cd_s_bin* msg = cd_cmd_gen_post_net_add(node_ptr->uuid);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
 void CDMeshConnector::network_remove_node(cd_s_node *node_ptr) {
-	node_ptr->provisioned = false;
+	node_ptr->provisioned = false; //TODO: await success
 	printf("remove %.*s from network\n", (int)node_ptr->name_len, node_ptr->name);
-	return;
+
+	cd_s_bin* msg = cd_cmd_gen_post_net_rm(node_ptr->uuid);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
 string CDMeshConnector::cd_mac_to_string(cd_mac_addr_t mac) {
@@ -185,6 +213,28 @@ string CDMeshConnector::cd_mac_to_string(cd_mac_addr_t mac) {
 	return ret;
 }
 
+string CDMeshConnector::cd_uuid_to_string(cd_uuid_t uuid) {
+	char *addr = nullptr;
+	asprintf(&addr, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7], uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]);
+	string ret = addr;
+	free(addr);
+	return ret;
+}
+
 cd_s_automation *CDMeshConnector::get_link(cd_link_t id) { return _links[id]; }
 
 cd_s_node *CDMeshConnector::get_node(cd_uid_t id) { return _nodes[id]; }
+
+cd_uid_t CDMeshConnector::get_or_create_node_by_uuid(cd_uuid_t uuid) {
+	for (pair<cd_uid_t, cd_s_node *> node : _nodes)
+		if (memcmp(node.second->uuid, uuid, sizeof(cd_uuid_t)) == 0) return node.first;
+	return create_node({});
+}
+
+cd_link_t CDMeshConnector::get_or_create_link_by_uuid(cd_uuid_t button, cd_uuid_t light) {
+	for (pair<cd_uid_t, cd_s_automation *> link : _links)
+		if (link.second != nullptr && link.second->valid == true &&
+			memcmp(link.second->button->uuid, button, sizeof(cd_uuid_t)) == 0 &&
+			memcmp(link.second->light->uuid, light, sizeof(cd_uuid_t)) == 0) return link.first;
+	return create_link();
+}
diff --git a/confui/mesh_connector.h b/confui/mesh_connector.h
index 176778f..8c1fc91 100644
--- a/confui/mesh_connector.h
+++ b/confui/mesh_connector.h
@@ -5,6 +5,8 @@
 #include <string>
 #include <vector>
 
+#include "../shared/protocol.h"
+
 using std::array;
 using std::map;
 using std::size_t;
@@ -15,22 +17,19 @@ using std::vector;
 typedef uint32_t cd_uid_t;
 /** @brief link/automation id type */
 typedef uint32_t cd_link_t;
-/** @brief node mac address type */
-typedef uint8_t cd_mac_addr_t[6];
-
-/** @brief automation types/actions */
-enum cd_e_automation_type {
-	CD_AUTOMATION_TYPE_TOGGLE,	 /** @brief button toggles light */
-	CD_AUTOMATION_TYPE_TURN_ON,	 /** @brief button always turns on light (regardless of previous state) */
-	CD_AUTOMATION_TYPE_TURN_OFF, /** @brief button always turns off light (regardless of previous state) */
-};
+
+typedef cd_e_cmd_link_type cd_e_automation_type;
+#define CD_AUTOMATION_TYPE_TOGGLE CD_CMD_LINK_TYPE_TOGGLE
+#define CD_AUTOMATION_TYPE_TURN_ON CD_CMD_LINK_TYPE_TURN_ON
+#define CD_AUTOMATION_TYPE_TURN_OFF CD_CMD_LINK_TYPE_TURN_OFF
 
 /** @brief GUI node representation */
 typedef struct {
 	cd_uid_t id;		   /** @brief GUI-specific id (used as handle) */
 	cd_mac_addr_t address; /** @brief node bluetooth mac address */
+	cd_uuid_t uuid;		   /** @brief node uuid */
 	size_t name_len;	   /** @brief name length in bytes */
-	const char *name;	   /** @brief user-friendly node name */
+	char *name;	   /** @brief user-friendly node name */
 	bool light_on;		   /** @brief state of light on node */
 	bool provisioned;	   /** @brief whether the node is provisioned into the network */
 } cd_s_node;
@@ -102,6 +101,8 @@ public:
 	virtual cd_s_automation *get_link(cd_link_t id);
 	/** @brief get node pointer by node id */
 	virtual cd_s_node *get_node(cd_uid_t id);
+	virtual cd_uid_t get_or_create_node_by_uuid(cd_uuid_t uuid);
+	virtual cd_link_t get_or_create_link_by_uuid(cd_uuid_t button, cd_uuid_t light);
 
 	// network modification functions
 	/** @brief create empty automation */
@@ -114,7 +115,7 @@ public:
 	 * @param light  node id for node whose light will be used for this automation.
 	 * @param action  action/automation type (toggle, on, off).
 	 */
-	virtual cd_link_t create_link(cd_uid_t button, cd_uid_t light, enum cd_e_automation_type action);
+	virtual cd_link_t create_link(cd_uid_t button, cd_uid_t light, cd_e_automation_type action);
 	/**
 	 * @brief overwrite link id with new automation and update on network.
 	 *
@@ -123,14 +124,16 @@ public:
 	 * properties.
 	 *
 	 * @param automation  pointer to automation struct (with new/modified values)
+	 * @param publish  `true` to send POST_LINK command
 	 */
-	virtual void update_link(cd_s_automation *automation);
+	virtual void update_link(cd_s_automation *automation, bool publish = false);
 	/**
 	 * @brief remove automation and update on network.
 	 *
 	 * @param link_handle  automation id
+	 * @param publish  `true` to send POST_LINK command
 	 */
-	virtual void remove_link(cd_link_t link_handle);
+	virtual void remove_link(cd_link_t link_handle, bool publish = false);
 
 	/**
 	 * @brief overwrite node id with new node and update on network.
@@ -139,8 +142,9 @@ public:
 	 * allocated using malloc()). used to update existing node properties.
 	 *
 	 * @param node_ptr  pointer to node struct (with new/modified state)
+	 * @param publish  `true` to send POST_LED command
 	 */
-	virtual void update_node(cd_s_node *node_ptr);
+	virtual void update_node(cd_s_node *node_ptr, bool publish = false);
 	/**
 	 * @brief provision node into network
 	 *
@@ -157,6 +161,9 @@ public:
 	// conversion functions
 	/** @brief convert `cd_mac_addr_t` to `std::string` for printing/GUI */
 	static string cd_mac_to_string(cd_mac_addr_t mac);
+	/** @brief convert `cd_uuid_t` to `std::string` for printing/GUI */
+	static string cd_uuid_to_string(cd_uuid_t uuid);
+
 };
 
 /** @brief global pointer to mesh connector, initialized in CDMainWindow */
diff --git a/confui/serial.cpp b/confui/serial.cpp
new file mode 100644
index 0000000..b3f1cd6
--- /dev/null
+++ b/confui/serial.cpp
@@ -0,0 +1,198 @@
+#include "serial.h"
+#include "../shared/serial_parse.h"
+#include "../shared/bin.h"
+#include "../shared/pclient.h"
+#include "mainwindow.h"
+#include "mesh_connector.h"
+
+#include <iostream>
+#include <QDebug>
+#include <QSerialPort>
+#include <QSerialPortInfo>
+
+CDSerialConnector::CDSerialConnector() {
+	this->_serial = new QSerialPort;
+
+	if (!_serial->setBaudRate(QSerialPort::Baud115200)) qDebug() << _serial->errorString();
+	if (!_serial->setDataBits(QSerialPort::Data8)) // data is 8 bits
+		qDebug() << _serial->errorString();
+	if (!_serial->setParity(QSerialPort::NoParity)) qDebug() << _serial->errorString();
+	if (!_serial->setFlowControl(QSerialPort::NoFlowControl)) // default: QSerialPort::NoFlowControl
+		qDebug() << _serial->errorString();
+	if (!_serial->setStopBits(QSerialPort::OneStop)) // default
+		qDebug() << _serial->errorString();
+}
+
+CDSerialConnector::~CDSerialConnector() { delete this->_serial; }
+
+void CDSerialConnector::action() {
+	int bytes = _serial->bytesAvailable();
+	if (bytes > 0) _msg = _serial->readAll();
+
+	string std_string = _msg.toStdString();
+	size_t size = std_string.size();
+	const char* data = std_string.c_str();
+	for (size_t i = 0; i < size; i++)
+		cd_serial_parse(data[i]);
+}
+
+void CDSerialConnector::write(QByteArray msg) {
+	if (-1 == _serial->write(msg))
+		qDebug() << _serial->errorString();
+}
+
+void CDSerialConnector::connect(string port) {
+	_serial->setPortName(QString::fromStdString(port));
+
+	if (!_serial->open(QIODevice::ReadWrite))
+		qDebug() << _serial->errorString();
+
+	QObject::connect(_serial, &QSerialPort::readyRead, [&] { action(); });
+}
+
+void CDSerialConnector::disconnect() {
+	if (_serial->isOpen() == false) return;
+	_serial->disconnect();
+}
+
+QByteArray CDSerialConnector::get_data() { return _msg; }
+
+vector<string> CDSerialConnector::get_ports() {
+	vector<string> ports;
+	for (QSerialPortInfo port : QSerialPortInfo::availablePorts())
+		ports.push_back(port.portName().toStdString());
+	return ports;
+}
+
+string CDSerialConnector::get_port() {
+	return _serial->portName().toStdString();
+}
+
+extern "C" {
+
+void cd_pclient_send(cd_s_bin* data) {
+	QByteArray converted;
+	converted.append("\xff", 1);
+	for (size_t i = 0; i < data->bytes; i++) {
+		size_t byte = data->data[i];
+		byte == 0xff ? converted.append("\xff\xff", 2)
+			: converted.append((char *) &byte, 1);
+	}
+	g_cd_serial->write(converted);
+}
+
+// receive handlers (node only)
+void cd_cmd_get_node(cd_s_bin* data) { (void) data; }
+void cd_cmd_post_led(cd_s_bin* data) { (void) data; }
+void cd_cmd_post_link(cd_s_bin* data) { (void) data; }
+void cd_cmd_post_net(cd_s_bin* data) { (void) data; }
+
+void cd_cmd_ping(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_ping, data, cast);
+
+	cd_bin_repl_ntoh16(&cast->id); // fix endianness
+
+	std::cout << "ping request with id " << cast->id << " received!" << std::endl;
+	
+	cd_s_bin* response = cd_cmd_res_status((cd_e_scmds) cast->opcode, cast->id, false);
+	cd_pclient_send(response);
+	free(response);
+}
+
+void cd_cmd_response_get_node_parse_node(cd_s_cmd_node* node) {
+	printf("yes i am node with name '%.*s'\n", node->name_len, node->remaining_data);
+	printf("my light is %s and i am%s provisioned\n", node->light_on ? "on" : "off", node->provisioned ? "" : " not");
+
+	// get node handle
+	cd_uid_t node_id = g_cd_mesh_connector->get_or_create_node_by_uuid(node->uuid);
+	cd_s_node* gui_node = g_cd_mesh_connector->get_node(node_id);
+
+	// fill current node
+	memcpy(gui_node->address, node->address, sizeof(cd_mac_addr_t));
+	memcpy(gui_node->uuid, node->uuid, sizeof(cd_uuid_t));
+	gui_node->name_len = node->name_len;
+	if (gui_node->name != nullptr) free(gui_node->name);
+	char* name = (char*) malloc(node->name_len);
+	memcpy(name, node->remaining_data, node->name_len);
+	gui_node->name = name;
+	gui_node->light_on = !!node->light_on;
+	gui_node->provisioned = !!node->provisioned;
+
+	cd_uuid_t* light_publish_addresses = (cd_uuid_t*) (&node->remaining_data[0] + node->name_len);
+	for (unsigned i = 0; i < node->link_count; i++) {
+		// find or create light node
+		cd_uid_t light_id = g_cd_mesh_connector->get_or_create_node_by_uuid(light_publish_addresses[i]);
+		cd_s_node* gui_light = g_cd_mesh_connector->get_node(light_id);
+		memcpy(gui_light->uuid, light_publish_addresses[i], sizeof(cd_uuid_t)); // fill at least uuid (if node is not yet known)
+
+		// find or create automation handle
+		cd_link_t link_id = g_cd_mesh_connector->get_or_create_link_by_uuid(gui_light->uuid, light_publish_addresses[i]);
+		cd_s_automation* gui_link = g_cd_mesh_connector->get_link(link_id);
+
+		// fill automation
+		gui_link->button = gui_node;
+		gui_link->light = gui_light;
+		gui_link->type = CD_AUTOMATION_TYPE_TOGGLE; //TODO: read from incoming data in future
+		gui_link->valid = true;
+	}
+
+	g_cd_main_window->update();
+}
+
+void cd_cmd_response_get_node(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, response_cast);
+	cd_s_cmd_response_get_node* nodes = (cd_s_cmd_response_get_node*) &response_cast->response_info[0]; // yes
+	cd_bin_repl_ntoh16(&nodes->node_count);
+	cd_bin_repl_ntoh16(&nodes->remaining_size);
+
+	std::cout << "get nodes response with id " << response_cast->response_id << " received!" << std::endl;
+	printf("counting %d node%s\n", nodes->node_count, nodes->node_count == 1 ? "" : "s");
+
+	cd_s_cmd_node* cursor = &nodes->nodes[0];
+	for (unsigned int i = 0; i < nodes->node_count; i++) {
+		cd_bin_repl_ntoh16(&cursor->remaining_size);
+		cd_bin_repl_ntoh16(&cursor->link_count);
+		cd_bin_repl_ntoh32(&cursor->button_pub);
+
+		cd_cmd_response_get_node_parse_node(cursor);
+		cursor += sizeof(cd_s_cmd_node) + cd_bin_ntoh16(cursor->remaining_size);
+	}
+}
+
+void cd_cmd_response_ping(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, cast);
+	std::cout << "ping response with id " << cast->response_id << " received!" << std::endl;
+}
+
+void cd_cmd_response_post_led(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, cast);
+	if (cast->error) printf("POST_LED response with error for msg id 0x%04x", cast->response_id);
+}
+
+void cd_cmd_response_post_link(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, cast);
+	if (cast->error) printf("POST_LINK response with error for msg id 0x%04x", cast->response_id);
+}
+
+void cd_cmd_response_post_net(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, cast);
+	if (cast->error) printf("POST_NET response with error for msg id 0x%04x", cast->response_id);
+}
+
+void cd_cmd_response(cd_s_bin* data) {
+	CD_CAST_BIN(cd_s_cmd_response, data, cast);
+	
+	cd_bin_repl_ntoh16(&cast->id);
+	cd_bin_repl_ntoh16(&cast->response_id);
+
+	switch (cast->response_type) {
+		case CD_CMD_PING: return cd_cmd_response_ping(data);
+		case CD_CMD_GET_NODE: return cd_cmd_response_get_node(data);
+		case CD_CMD_POST_LED: return cd_cmd_response_post_led(data);
+		case CD_CMD_POST_LINK: return cd_cmd_post_link(data);
+		case CD_CMD_POST_NET: return cd_cmd_response_post_net(data);
+		default: return;
+	}
+}
+
+}
diff --git a/confui/serial.h b/confui/serial.h
new file mode 100644
index 0000000..aa0508f
--- /dev/null
+++ b/confui/serial.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <QSerialPort>
+#include <QString>
+#include <vector>
+
+using std::string;
+using std::vector;
+
+/** @brief manage asynchronous serial connection */
+class CDSerialConnector {
+public:
+	CDSerialConnector();
+	virtual ~CDSerialConnector();
+
+	/** @brief get list of available serial ports */
+	static vector<string> get_ports();
+
+	/** @brief open serial port */
+	virtual void connect(string port);
+	/** @brief close serial port */
+	virtual void disconnect();
+
+	/** @brief write to serial port */
+	virtual void write(QByteArray msg);
+	/** @brief get last message */
+	virtual QByteArray get_data();
+
+	/** @brief get current port name */
+	virtual string get_port();
+
+private:
+	/** @brief executed when new data is received */
+	virtual void action();
+
+	QSerialPort *_serial = nullptr;
+	QByteArray _msg;
+};
+
+/** @brief global pointer to serial connector, initialized in CDMainWindow */
+extern CDSerialConnector *g_cd_serial;
+
diff --git a/confui/ui_automation.cpp b/confui/ui_automation.cpp
index eb6e1f6..2ade734 100644
--- a/confui/ui_automation.cpp
+++ b/confui/ui_automation.cpp
@@ -74,11 +74,11 @@ void CDAutomationWidget::apply() {
 	if (!conf_valid()) return;
 
 	_automation->button = g_cd_mesh_connector->get_node(dropdown_button->findData(dropdown_button->currentIndex()));
-	_automation->type	= (enum cd_e_automation_type)dropdown_action->findData(dropdown_action->currentIndex());
+	_automation->type	= (cd_e_automation_type) dropdown_action->findData(dropdown_action->currentIndex());
 	_automation->light	= g_cd_mesh_connector->get_node(dropdown_light->findData(dropdown_light->currentIndex()));
 	_automation->valid	= true;
 
-	g_cd_mesh_connector->update_link(_automation);
+	g_cd_mesh_connector->update_link(_automation, true);
 }
 
 void CDAutomationWidget::remove() {
diff --git a/confui/ui_node.cpp b/confui/ui_node.cpp
index 552b62a..09daaaa 100644
--- a/confui/ui_node.cpp
+++ b/confui/ui_node.cpp
@@ -1,4 +1,5 @@
 #include "ui_node.h"
+#include "../shared/pclient.h"
 
 CDNodeWidget::~CDNodeWidget() {}
 CDNodeWidget::CDNodeWidget(QWidget *parent) : QWidget(parent) {
@@ -43,6 +44,10 @@ void CDNodeWidget::update() {
 	switch_on_off->setChecked(_node->light_on);
 
 	button_add_remove->setText(_node->provisioned ? "Remove from network" : "Join network");
+
+	cd_s_bin* msg = cd_cmd_gen_get_node(false, this->_node->uuid);
+	cd_pclient_send(msg);
+	free(msg);
 }
 
 void CDNodeWidget::toggle_provision() {
@@ -54,7 +59,7 @@ void CDNodeWidget::toggle_provision() {
 
 void CDNodeWidget::update_led(bool on) {
 	_node->light_on = on;
-	g_cd_mesh_connector->update_node(_node);
+	g_cd_mesh_connector->update_node(_node, true);
 
 	update();
 }