diff --git a/firmware/applications/serial/config.c b/firmware/applications/serial/config.c
deleted file mode 100644
index 0d8df7c..0000000
--- a/firmware/applications/serial/config.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <sysinit.h>
-
-#include "basic/basic.h"
-
-#include "lcd/print.h"
-#include "lcd/display.h"
-
-#include "filesystem/ff.h"
-
-#include <string.h>
-
-/**************************************************************************/
-
-void readcfg(void) {
-    readConfig();
-};
-
-void savecfg(void){
-    saveConfig();
-};
-
-void applycfg(void){
-    applyConfig();
-};
-
-void show(void){
-    lcdClear();
-    lcdPrint("time:"); lcdPrintInt(globalconfig.time); lcdNl();
-    lcdPrint("btrig:"); lcdPrintInt(globalconfig.backlighttrigger); lcdNl();
-    lcdPrint("bval:"); lcdPrintInt(globalconfig.backlightvalue); lcdNl();
-    lcdPrint("lcd:"); lcdPrintInt(globalconfig.lcdstate); lcdNl();
-    lcdPrint("priv:"); lcdPrintInt(globalconfig.privacy); lcdNl();
-    lcdRefresh();
-};
-
-void lcdmirror(void){
-    lcdToggleFlag(LCD_MIRRORX);
-};
diff --git a/firmware/applications/serial/remote.c b/firmware/applications/serial/remote.c
deleted file mode 100644
index be96720..0000000
--- a/firmware/applications/serial/remote.c
+++ /dev/null
@@ -1,274 +0,0 @@
-#include <sysinit.h>
-
-#include "basic/basic.h"
-#include "basic/byteorder.h"
-
-#include "lcd/lcd.h"
-#include "lcd/print.h"
-
-#include "funk/nrf24l01p.h"
-#include "usbcdc/usb.h"
-#include "usbcdc/usbcore.h"
-#include "usbcdc/usbhw.h"
-#include "usbcdc/cdcuser.h"
-#include "usbcdc/cdc_buf.h"
-#include "usbcdc/util.h"
-
-#include <string.h>
-
-#define REMOTE_CHANNEL 91
-#define REMOTE_MAC     "REM0T"
-
-#if CFG_USBMSC
-#error "MSC is defined"
-#endif
-
-#if !CFG_USBCDC
-#error "CDC is not defined"
-#endif
-
-/**************************************************************************/
-
-uint32_t const remotekey[4] = {
-    0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff
-};
-
-void r_init(void){
-    nrf_init();
-
-    struct NRF_CFG config = {
-        .channel= REMOTE_CHANNEL,
-        .txmac= REMOTE_MAC,
-        .nrmacs=1,
-        .mac0=  REMOTE_MAC,
-        .maclen ="\x10",
-    };
-
-    nrf_config_set(&config);
-};
-
-void s_init(void){
-    usbCDCInit();
-    nrf_init();
-
-    struct NRF_CFG config = {
-        .channel= REMOTE_CHANNEL,
-        .txmac= REMOTE_MAC,
-        .nrmacs=1,
-        .mac0=  REMOTE_MAC,
-        .maclen ="\x10",
-    };
-
-    nrf_config_set(&config);
-};
-
- void process(uint8_t * input){
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    puts("process: ");
-    puts(input);
-    puts("\r\n");
-    if(input[0]=='M'){
-        buf[0]=0x10; // Length: 16 bytes
-        buf[1]='M'; // Proto
-        buf[2]=0x01;
-        buf[3]=0x01; // Unused
-
-        uint32touint8p(0,buf+4);
-
-        uint32touint8p(0x41424344,buf+8);
-
-        buf[12]=0xff; // salt (0xffff always?)
-        buf[13]=0xff;
-        nrf_snd_pkt_crc_encr(16,buf,remotekey);
-        nrf_rcv_pkt_start();
-    };
-
-};
-
-#define INPUTLEN 99
-void r_recv(void){
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    int len;
-
-    uint8_t input[INPUTLEN+1];
-    int inputptr=0;
-
-    nrf_rcv_pkt_start();
-    puts("D start");
-
-    getInputWaitRelease();
-
-    while(!getInputRaw()){
-        delayms(100);
-
-        // Input
-        int l=INPUTLEN-inputptr;
-        CDC_OutBufAvailChar (&l);
-
-        if(l>0){
-            CDC_RdOutBuf (input+inputptr, &l);
-            input[inputptr+l+1]=0;
-            for(int i=0;i<l;i++){
-                if(input[inputptr+i] =='\r'){
-                    input[inputptr+i]=0;
-                    process(input);
-                    if(i<l)
-                        memmove(input,input+inputptr+i+1,l-i);
-                    inputptr=-i-1;
-                    break;
-                };
-            };
-        };
-        inputptr+=l;
-        len=nrf_rcv_pkt_poll_dec(sizeof(buf),buf,remotekey);
-
-        // Receive
-        if(len<=0){
-            delayms(10);
-            continue;
-        };
-
-        if(buf[1]=='C'){ // Cursor
-            puts("C ");
-            puts(IntToStrX( buf[2],2 ));
-            puts(" ");
-            puts(IntToStrX( uint8ptouint32(buf+4), 8 ));
-            puts(" ");
-            puts(IntToStrX( uint8ptouint32(buf+8), 8 ));
-        }else{
-            puts("U ");
-//          puts("[");puts(IntToStrX(len,2));puts("] ");
-            puts(IntToStrX( *(int*)(buf+  0),2 ));
-            puts(" ");
-            puts(IntToStrX( *(int*)(buf+  1),2 ));
-            puts(" ");
-            puts(IntToStrX( *(int*)(buf+  2),2 ));
-            puts(" ");
-            puts(IntToStrX( *(int*)(buf+  3),2 ));
-            puts(" ");
-            puts(IntToStrX( uint8ptouint32(buf+4),8 ));
-            puts(".");
-            puts(IntToStrX( uint8ptouint32(buf+8),8 ));
-            puts(" ");
-            puts(IntToStrX( uint8ptouint32(buf+10),4 ));
-        };
-        puts("\r\n");
-
-    };
-
-    nrf_rcv_pkt_end();
-    puts("D exit");
-}
-
-
-void r_s1(void){
-    static int ctr=1;
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    int status;
-
-    buf[0]=0x10; // Length: 16 bytes
-    buf[1]='1'; // Proto
-    buf[2]=0x00;
-    buf[3]=0x00; // Unused
-
-    uint32touint8p(ctr++,buf+4);
-
-    uint32touint8p(0x5ec,buf+8);
-
-    buf[12]=0xff; // salt (0xffff always?)
-    buf[13]=0xff;
-    status=nrf_snd_pkt_crc_encr(16,buf,remotekey);
-
-    lcdClear();
-    lcdPrint("F-St:"); lcdPrintInt(status); 
-    lcdDisplay();
-
-};
-void r_s2(void){
-    static int ctr=1;
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    int status;
-
-    buf[0]=0x10; // Length: 16 bytes
-    buf[1]='C'; // Proto
-    buf[2]=0x00;
-    buf[3]=0x00; // Unused
-
-    uint32touint8p(ctr++,buf+4);
-
-    uint32touint8p(0x5ec,buf+8);
-
-    buf[12]=0xff; // salt (0xffff always?)
-    buf[13]=0xff;
-    status=nrf_snd_pkt_crc_encr(16,buf,remotekey);
-
-    buf[0]=0x10; // Length: 16 bytes
-    buf[1]='I'; // Proto
-    buf[2]=0x00;
-    buf[3]=0x00; // Unused
-
-    uint32touint8p(ctr++,buf+4);
-
-    uint32touint8p(0x5ec,buf+8);
-
-    buf[12]=0xff; // salt (0xffff always?)
-    buf[13]=0xff;
-    status=nrf_snd_pkt_crc_encr(16,buf,remotekey);
-
-    lcdClear();
-    lcdPrint("F-St:"); lcdPrintInt(status); 
-    lcdDisplay();
-
-};
-
-void r_send(void){
-    int ctr=1;
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    int len;
-    int status;
-
-    while(1){
-
-        buf[0]=0x10; // Length: 16 bytes
-        buf[1]='C'; // Proto
-        buf[2]=getInputRaw();
-        buf[3]=0x00; // Unused
-
-        ctr++;
-        *(int*)(buf+4)=ctr;
-
-        /*
-        buf[4]=0x00; // ctr
-        buf[5]=0x00; // ctr
-        buf[6]=0x00; // ctr
-        buf[7]=ctr++; // ctr
-        */
-
-        buf[8]=0x0; // Object id
-        buf[9]=0x0;
-        buf[10]=0x05;
-        buf[11]=0xec;
-
-        buf[12]=0xff; // salt (0xffff always?)
-        buf[13]=0xff;
-
-        lcdClear();
-        lcdPrint("Key:"); lcdPrintInt(buf[2]); lcdNl();
-        if(buf[2]==BTN_ENTER)
-            break;
-
-        status=nrf_snd_pkt_crc_encr(16,buf,remotekey);
-
-        lcdPrint("F-St:"); lcdPrintInt(status); 
-        lcdDisplay();
-
-        len=nrf_rcv_pkt_time_encr(100,sizeof(buf),buf,remotekey);
-        if(len>0){
-            lcdPrint("Got!");
-            lcdDisplay();
-            break;
-        };
-        delayms(10);
-    };
-};
-
diff --git a/firmware/applications/serial/serial.c b/firmware/applications/serial/serial.c
index 94d41b3..b7d547e 100644
--- a/firmware/applications/serial/serial.c
+++ b/firmware/applications/serial/serial.c
@@ -1,12 +1,12 @@
 #include <sysinit.h>
 
 #include "basic/basic.h"
+#include "basic/byteorder.h"
 
 #include "lcd/lcd.h"
 #include "lcd/print.h"
 
 #include "funk/nrf24l01p.h"
-
 #include "usbcdc/usb.h"
 #include "usbcdc/usbcore.h"
 #include "usbcdc/usbhw.h"
@@ -16,12 +16,23 @@
 
 #include <string.h>
 
+#define REMOTE_CHANNEL 91
+#define REMOTE_MAC     "REM0T"
+#define MESH_CHANNEL 85
+#define MESH_MAC     "MESHB"
 #define BEACON_CHANNEL 81
 #define BEACON_MAC     "\x1\x2\x3\x2\1"
 
-uint32_t const testkey[4] = {
-    0xB4595344,0xD3E119B6,0xA814D0EC,0xEFF5A24E
+uint32_t const beaconkey[4] = {
+        0xB4595344,0xD3E119B6,0xA814D0EC,0xEFF5A24E
 };
+uint32_t remotekey[4] = {
+    0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff
+};
+uint32_t meshkey[4] = {
+    0x0, 0x0, 0x0, 0x0
+};
+
 
 #if CFG_USBMSC
 #error "MSC is defined"
@@ -33,107 +44,231 @@ uint32_t const testkey[4] = {
 
 /**************************************************************************/
 
+uint32_t thekey[4] = { 0x0, 0x0, 0x0, 0x0 };
+
+struct NRF_CFG config = {
+    .channel= BEACON_CHANNEL,
+    .txmac= BEACON_MAC,
+    .nrmacs=1,
+    .mac0=  BEACON_MAC,
+    .maclen ="\x10",
+};
+
+int process(char * input);
+
+#define INPUTLEN 99
+void dwim(void){
+    char input[INPUTLEN+1];
+    int inputptr=0;
 
-void ser_enable(void) {
     usbCDCInit();
-};
-
-void ser_disable(void) {
-    usbCDCOff();
-};
-
-#define myLEN 10
-void ser_read(){
-    uint8_t buf[myLEN+1];
-    int l=myLEN;
-
-    lcdPrint("Bytes:");
-    CDC_OutBufAvailChar (&l);
-    lcdPrintInt(l);
-    lcdNl();
-
-    lcdPrint("read:");
-    CDC_RdOutBuf (buf, &l);
-    lcdPrintInt(l);
-    lcdNl();
-
-    buf[l]=0;
-    lcdPrintln(buf);
-};
-
-void ser_say(){
-        puts("hello world\r\n");
-};
-
-void f_init(){
-    nrf_init();
-    struct NRF_CFG config = {
-        .channel= BEACON_CHANNEL,
-        .txmac= BEACON_MAC,
-        .nrmacs=1,
-        .mac0=  BEACON_MAC,
-        .maclen ="\x10",
-    };
-
-    nrf_config_set(&config);
-};
-
-void f_beacon(void){
-    struct NRF_CFG config = {
-        .channel= BEACON_CHANNEL,
-        .txmac= BEACON_MAC,
-        .nrmacs=1,
-        .mac0=  BEACON_MAC,
-        .maclen ="\x10",
-    };
-
-    nrf_config_set(&config);
-};
-
-int enctoggle=0;
-
-void f_enctog(){
-    enctoggle=1-enctoggle;
-    lcdClear();
-    lcdPrint("Encryption:");
-    if(enctoggle)
-        lcdPrintln("ON");
-    else
-        lcdPrintln("Off");
-};
-
-void f_recser(void){
-    __attribute__ ((aligned (4))) uint8_t buf[32];
-    int len;
-
+    delayms(500);
     getInputWaitRelease();
+    puts("D start\r\n");
 
-    do{
-        len=nrf_rcv_pkt_time_encr(1000,sizeof(buf),buf,enctoggle?testkey:NULL);
-
-        if(len==0){
-            puts("(Timeout)\r\n");
-        };
-        puts("pkt: ");
-        puts("[");puts(IntToStrX(len,2));puts("] ");
-        puts(IntToStrX( *(int*)(buf+  0),2 ));
-        puts(" ");
-        puts(IntToStrX( *(int*)(buf+  1),2 ));
-        puts(" ");
-        puts(IntToStrX( *(int*)(buf+  2),2 ));
-        puts(" ");
-        puts(IntToStrX( *(int*)(buf+  3),2 ));
-        puts(".");
-        puts(IntToStrX( *(int*)(buf+  4),8 ));
-        puts(".");
-        puts(IntToStrX( *(int*)(buf+  8),8 ));
-        puts(".");
-        puts(IntToStrX( *(int*)(buf+ 12),4 ));
-        puts(" [");
-
-        len=crc16(buf,14);
-        puts(IntToStrX(len,4)); puts("]\r\n");
+    while(!getInputRaw()){
         delayms(10);
-    }while ((getInputRaw())==BTN_NONE);
 
+        // Input
+        int l=INPUTLEN-inputptr;
+        CDC_OutBufAvailChar (&l);
+
+        if(l>0){
+            CDC_RdOutBuf (input+inputptr, &l);
+            input[inputptr+l]=0;
+            puts(&input[inputptr]);
+            for(int i=0;i<l;i++){
+                if(input[inputptr+i] =='\r'){
+                    input[inputptr+i]=0;
+                    process(input);
+                    if(i<l)
+                        memmove(input,input+inputptr+i+1,l-i);
+                    inputptr=-i-1;
+                    break;
+                };
+            };
+        };
+        inputptr+=l;
+    };
+
+    puts("D exit\r\n");
+}
+
+int process(char * input){
+    if(input == NULL || input[0]==0)
+        return;
+
+    puts("\r\n");
+    puts("D [");
+    puts(input);
+    puts("]\r\n");
+
+    if(input[0]=='i'){
+        nrf_init();
+        nrf_config_set(&config);
+    }else if(input[0]=='c'){
+        if(input[1]=='m'){
+            config.channel=MESH_CHANNEL;
+            memcpy(config.txmac,MESH_MAC,5);
+            memcpy(config.mac0,MESH_MAC,5);
+            config.maclen[0]=0x20;
+            config.nrmacs=1;
+            nrf_config_set(&config);
+            memcpy(thekey,meshkey,sizeof(thekey));
+        }else if(input[1]=='r'){
+            config.channel=REMOTE_CHANNEL;
+            memcpy(config.txmac,REMOTE_MAC,5);
+            memcpy(config.mac0,REMOTE_MAC,5);
+            config.maclen[0]=0x10;
+            config.nrmacs=1;
+            nrf_config_set(&config);
+            memcpy(thekey,remotekey,sizeof(thekey));
+        }else if(input[1]=='b'){
+            config.channel=BEACON_CHANNEL;
+            memcpy(config.txmac,BEACON_MAC,5);
+            memcpy(config.mac0,BEACON_MAC,5);
+            config.maclen[0]=0x10;
+            config.nrmacs=1;
+            nrf_config_set(&config);
+            memcpy(thekey,beaconkey,sizeof(thekey));
+        }else if(input[1]=='?'){
+            nrf_config_get(&config);
+            puts("Ch: ");puts(IntToStrX( config.channel,2 )); puts("\r\n");
+
+            puts("TxMac: ");
+            for(int i=0;i<5;i++)
+                puts(IntToStrX( config.txmac[i],2 ));
+            puts("\r\n");
+
+            puts("Len  : ");
+            for(int i=0;i<5;i++)
+                puts(IntToStrX( config.maclen[i],2 ));
+            puts("\r\n");
+
+            puts("0mac : ");
+            for(int i=0;i<5;i++)
+                puts(IntToStrX( config.mac0[i],2 ));
+            puts("\r\n");
+
+            puts("1mac : ");
+            for(int i=0;i<5;i++)
+                puts(IntToStrX( config.mac1[i],2 ));
+            puts("\r\n");
+
+            puts("2345 : ");
+            for(int i=0;i<4;i++)
+                puts(IntToStrX( config.mac2345[i],2 ));
+            puts("\r\n");
+
+            puts("key : ");
+            for(int i=0;i<4;i++){
+                puts(IntToStrX( thekey[i],8 ));
+                puts(" ");
+            };
+            puts("\r\n");
+        }else if(input[1]=='k'){
+            thekey[0]=0;
+            thekey[1]=0;
+            thekey[2]=0;
+            thekey[3]=0;
+        };
+    }else if (input[0]=='s'){
+        __attribute__ ((aligned (4))) uint8_t buf[32];
+        int status=0;
+        if (input[1]==' '){
+            int p=2;
+            int bp=0;
+            char c;
+//            puts("\r\n");
+            while(bp<32){
+                if(input[p]==0 || input[p+1]==0)
+                    break;
+                if(input[p]==' '){
+                    p++;
+                    continue;
+                };
+                c=((input[p]>'9')?input[p]-'a'+10:input[p]-'0')*16+
+                    ((input[p+1]>'9')?input[p+1]-'a'+10:input[p+1]-'0');
+//                puts(IntToStrX( c,2 ));
+//                puts(".");
+                buf[bp]=c;
+                bp++;p+=2;
+            };
+//            puts("\r\n");
+
+            if(bp<10) bp=10;
+
+            bp+=2;
+            puts("S Len:");
+            puts(IntToStrX( bp,2 ));
+            puts("\r\n");
+
+            status=nrf_snd_pkt_crc_encr(bp,buf,thekey);
+
+            puts("P ");
+            puts("[");puts(IntToStrX(bp,2));puts("] ");
+            for(int i=0;i<bp;i++){
+                puts(IntToStrX( buf[i],2 ));
+                puts(" ");
+            };
+            puts("\r\n");
+        }else if (input[1]=='t'){
+            static int ctr=1;
+            int status;
+
+            buf[0]=0x10; // Length: 16 bytes
+            buf[1]='1'; // Proto
+            buf[2]=0x00;
+            buf[3]=0x00; // Unused
+
+            uint32touint8p(ctr++,buf+4);
+
+            uint32touint8p(0x5ec,buf+8);
+
+            buf[12]=0xff; // salt (0xffff always?)
+            buf[13]=0xff;
+            status=nrf_snd_pkt_crc_encr(16,buf,thekey);
+        }else{
+        };
+        puts("S state=");
+        puts(IntToStrX( status,2 ));
+        puts("\r\n");
+    }else if (input[0]=='r'){
+        __attribute__ ((aligned (4))) uint8_t buf[32];
+        int len;
+        int pctr=5;
+        int t=getTimer()+5000/SYSTICKSPEED;
+
+        if(input[1]=='0')
+            pctr=-1;
+
+        puts("D receive ...\r\n");
+        nrf_rcv_pkt_start();
+        do{
+            len=nrf_rcv_pkt_poll_dec(sizeof(buf),buf,thekey);
+            // Receive
+            if(len==0||len==-1||len==-2){ //No pkt, Pkt2large, NoPktError
+                delayms(10);
+                continue;
+            };
+            puts("R ");
+            puts("[");puts(IntToStrX(len,2));puts("] ");
+            for(int i=0;i<len;i++){
+                puts(IntToStrX( buf[i],2 ));
+                puts(" ");
+            };
+            if(len==-3)
+                puts(" [!crc]");
+            puts("\r\n");
+            delayms(1);
+            if(pctr--==0)
+                break;
+        }while(t>getTimer());
+
+        nrf_rcv_pkt_end();
+    }else{
+        puts("D no action\r\n");
+    };
+    puts("D done.\r\n");
+    return 0;
 };
diff --git a/firmware/applications/serial/util.c b/firmware/applications/serial/util.c
index 8747264..0b30243 100644
--- a/firmware/applications/serial/util.c
+++ b/firmware/applications/serial/util.c
@@ -9,7 +9,6 @@
 #include "filesystem/ff.h"
 #include "filesystem/select.h"
 #include "funk/nrf24l01p.h"
-#include "usb/usbmsc.h"
 
 #include <string.h>
 
@@ -29,55 +28,8 @@ void show_ticks(void) {
 };
 
 
-void adc_light(void) {
-    int dx=0;
-    int dy=8;
-    dx=DoString(0,dy,"Light:");
-    DoString(0,dy+16,"Night:");
-    while ((getInputRaw())==BTN_NONE){
-        DoInt(dx,dy,GetLight());
-        DoInt(dx,dy+16,isNight());
-        DoInt(dx,dy+8,globalconfig.backlighttrigger);
-        lcdDisplay();
-    };
-    dy+=8;
-    dx=DoString(0,dy,"Done.");
-};
-
 void gotoISP(void) {
     DoString(0,0,"Enter ISP!");
     lcdDisplay();
     ISPandReset();
 }
-
-void lcd_mirror(void) {
-    lcdToggleFlag(LCD_MIRRORX);
-};
-
-void lcd_invert(void) {
-    lcdToggleFlag(LCD_INVERTED);
-};
-
-void adc_check(void) {
-    int dx=0;
-    int dy=8;
-    // Print Voltage
-    dx=DoString(0,dy,"Voltage:");
-    while ((getInputRaw())==BTN_NONE){
-        DoInt(dx,dy,GetVoltage());
-       lcdDisplay();
-    };
-    dy+=8;
-    dx=DoString(0,dy,"Done.");
-};
-
-void msc_menu(void){
-    DoString(0,8,"MSC Enabled.");
-    lcdDisplay();
-    usbMSCInit();
-    getInputWaitRelease();
-    getInputWait();
-    DoString(0,16,"MSC Disabled.");
-    usbMSCOff();
-};
-
diff --git a/firmware/applications/serial/uuid.c b/firmware/applications/serial/uuid.c
deleted file mode 100644
index 601a5f7..0000000
--- a/firmware/applications/serial/uuid.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <sysinit.h>
-
-#include "basic/basic.h"
-
-#include "lcd/lcd.h"
-#include "lcd/print.h"
-
-#include "funk/nrf24l01p.h"
-
-#include <string.h>
-
-#include "funk/rftransfer.h"
-#include "funk/openbeacon.h"
-
-#include "core/iap/iap.h"
-
-/**************************************************************************/
-
-void f_uuid(void) {
-    IAP_return_t iap_return;
-    iap_return = iapReadSerialNumber();
-    lcdPrintIntHex(iap_return.Result[0]); lcdNl();
-    lcdPrintIntHex(iap_return.Result[1]); lcdNl();
-    lcdPrintIntHex(iap_return.Result[2]); lcdNl();
-    lcdPrintIntHex(iap_return.Result[3]); lcdNl();
-}