diff --git a/F1-nolib/chronometer/Readme.md b/F1-nolib/chronometer/Readme.md
index 3c64c24..545d295 100644
--- a/F1-nolib/chronometer/Readme.md
+++ b/F1-nolib/chronometer/Readme.md
@@ -16,4 +16,5 @@ Chronometer for downhill competitions
 - PA14 - TRIG1 - button1/laser/etc (EXTI)
 - PA15 - USB pullup
 
-- PB0,1,2 - free for other functions
+- PB0 - ADC channel 8
+- PB1,2 - free for other functions
diff --git a/F1-nolib/chronometer/adc.c b/F1-nolib/chronometer/adc.c
index 9887722..eadbd4f 100644
--- a/F1-nolib/chronometer/adc.c
+++ b/F1-nolib/chronometer/adc.c
@@ -17,6 +17,8 @@
  */
 
 #include "adc.h"
+#include "flash.h"
+#include "hardware.h"
 
 /**
  * @brief ADC_array - array for ADC channels with median filtering:
@@ -68,3 +70,19 @@ uint32_t getVdd(){
     vdd /= getADCval(2);
     return vdd;
 }
+
+void chkADCtrigger(){
+    static uint8_t triggered = 0;
+    savetrigtime();
+    uint16_t val = getADCval(0);
+    if(triggered){ // check untriggered action
+        if(val < the_conf.ADC_min || val > the_conf.ADC_max){
+            triggered = 0;
+        }
+    }else{ // check if thigger shot
+        if(val > the_conf.ADC_min && val < the_conf.ADC_max){
+            triggered = 1;
+            fillshotms(4);
+        }
+    }
+}
diff --git a/F1-nolib/chronometer/adc.h b/F1-nolib/chronometer/adc.h
index de20e01..1cab310 100644
--- a/F1-nolib/chronometer/adc.h
+++ b/F1-nolib/chronometer/adc.h
@@ -25,5 +25,5 @@ extern uint16_t ADC_array[];
 int32_t getMCUtemp();
 uint32_t getVdd();
 uint16_t getADCval(int nch);
-
+void chkADCtrigger();
 #endif // ADC_H
diff --git a/F1-nolib/chronometer/chrono.bin b/F1-nolib/chronometer/chrono.bin
index c5f312d..7809584 100755
Binary files a/F1-nolib/chronometer/chrono.bin and b/F1-nolib/chronometer/chrono.bin differ
diff --git a/F1-nolib/chronometer/flash.c b/F1-nolib/chronometer/flash.c
index e55fffe..580c3c3 100644
--- a/F1-nolib/chronometer/flash.c
+++ b/F1-nolib/chronometer/flash.c
@@ -58,6 +58,8 @@ typedef struct{
     ,.trig_pullups = 0xff               \
     ,.trigstate = 0                     \
     ,.trigpause = {400, 400, 400}       \
+    ,.ADC_min = 1024                    \
+    ,.ADC_max = 3072                    \
 	}
 
 __attribute__((section(".myvars"))) static const flash_storage Flash_Storage = {
diff --git a/F1-nolib/chronometer/flash.h b/F1-nolib/chronometer/flash.h
index 14d5293..cbbb452 100644
--- a/F1-nolib/chronometer/flash.h
+++ b/F1-nolib/chronometer/flash.h
@@ -38,6 +38,8 @@ typedef struct __attribute__((packed)){
     uint8_t  trig_pullups;      // trigger pullups: each bit ==0 to set OFF, ==1 to set ON pullup with given number
     uint8_t  trigstate;         // level in `triggered` state
     int32_t  trigpause[TRIGGERS_AMOUNT]; // pause (ms) for false shots
+    int16_t  ADC_min;           // min&max values of ADC (shot when ADval > ADC_min && < ADC_max)
+    int16_t  ADC_max;           // !!! BOTH ARE SIGNED! so you can include 0 & 4096
 } user_conf;
 
 extern user_conf the_conf;
diff --git a/F1-nolib/chronometer/hardware.c b/F1-nolib/chronometer/hardware.c
index 49e5a9a..7aceba0 100644
--- a/F1-nolib/chronometer/hardware.c
+++ b/F1-nolib/chronometer/hardware.c
@@ -29,12 +29,13 @@
 
 #include <string.h> // memcpy
 
+uint8_t LEDSon = 1; // LEDS are working
 // ports of triggers
-GPIO_TypeDef *trigport[TRIGGERS_AMOUNT] = {GPIOA, GPIOA, GPIOA};
+static GPIO_TypeDef *trigport[DIGTRIG_AMOUNT] = {GPIOA, GPIOA, GPIOA};
 // pins of triggers: PA13, PA14, PA4
-uint16_t trigpin[TRIGGERS_AMOUNT] = {1<<13, 1<<14, 1<<4};
+static uint16_t trigpin[DIGTRIG_AMOUNT] = {1<<13, 1<<14, 1<<4};
 // value of pin in `triggered` state
-uint8_t trigstate[TRIGGERS_AMOUNT];
+static uint8_t trigstate[DIGTRIG_AMOUNT];
 // time of triggers shot
 trigtime shottime[TRIGGERS_AMOUNT];
 // Tms value when they shot
@@ -64,7 +65,7 @@ static inline void gpio_setup(){
     EXTI->IMR = EXTI_IMR_MR1;
     EXTI->RTSR = EXTI_RTSR_TR1; // rising trigger
     // PA4/PA13/PA14 - buttons
-    for(int i = 0; i < TRIGGERS_AMOUNT; ++i){
+    for(int i = 0; i < DIGTRIG_AMOUNT; ++i){
         uint16_t pin = trigpin[i];
         // fill trigstate array
         uint8_t trgs = (the_conf.trigstate & (1<<i)) ? 1 : 0;
@@ -122,7 +123,7 @@ static inline void adc_setup(){
 
 void hw_setup(){
     gpio_setup();
-    //adc_setup();
+    adc_setup();
 }
 
 void exti1_isr(){ // PPS - PA1
@@ -132,12 +133,12 @@ void exti1_isr(){ // PPS - PA1
 }
 
 static trigtime trgtm;
-static void savetrigtime(){
+void savetrigtime(){
     trgtm.millis = Timer;
     memcpy(&trgtm.Time, &current_time, sizeof(curtime));
 }
 
-static void fillshotms(int i){
+void fillshotms(int i){
     if(i < 0 || i > TRIGGERS_AMOUNT) return;
     if(shotms[i] - Tms > (uint32_t)the_conf.trigpause[i]){
         shotms[i] = Tms;
@@ -146,14 +147,14 @@ static void fillshotms(int i){
     }
 }
 
-void exti4_isr(){ // PA4 - button2
+void exti4_isr(){ // PA4 - trigger[2]
     savetrigtime();
     fillshotms(2);
     DBG("exti4");
     EXTI->PR = EXTI_PR_PR4;
 }
 
-void exti15_10_isr(){ // PA13 - button0, PA14 - button1
+void exti15_10_isr(){ // PA13 - trigger[0], PA14 - trigger[1]
     savetrigtime();
     if(EXTI->PR & EXTI_PR_PR13){
         fillshotms(0);
diff --git a/F1-nolib/chronometer/hardware.h b/F1-nolib/chronometer/hardware.h
index d392e39..869f327 100644
--- a/F1-nolib/chronometer/hardware.h
+++ b/F1-nolib/chronometer/hardware.h
@@ -38,12 +38,14 @@
 #define PPS_pin     (1<<1)
 
 // PPS and triggers state
-// amount of triggers, should be less than 9
-#define TRIGGERS_AMOUNT  (3)
-extern GPIO_TypeDef *trigport[TRIGGERS_AMOUNT];
-extern uint16_t trigpin[TRIGGERS_AMOUNT];
-extern uint8_t trigstate[TRIGGERS_AMOUNT];
+// amount of triggers, should be less than 9; 5 - 0..2 - switches, 3 - LIDAR, 4 - ADC
+#define TRIGGERS_AMOUNT  (5)
+// amount of digital triggers (on interrupts)
+#define DIGTRIG_AMOUNT   (3)
+
 uint8_t gettrig(uint8_t N);
+void fillshotms(int i);
+void savetrigtime();
 #define GET_PPS()       ((GPIOA->IDR & (1<<1)) ? 1 : 0)
 
 // USB pullup - PA15
@@ -52,12 +54,12 @@ uint8_t gettrig(uint8_t N);
 #define USBPU_ON()  pin_clear(USBPU_port, USBPU_pin)
 #define USBPU_OFF() pin_set(USBPU_port, USBPU_pin)
 
-#define LED_blink()    pin_toggle(LED0_port, LED0_pin)
-#define LED_on()       pin_clear(LED0_port, LED0_pin)
-#define LED_off()      pin_set(LED0_port, LED0_pin)
-#define LED1_blink()   pin_toggle(LED1_port, LED1_pin)
-#define LED1_on()      pin_clear(LED1_port, LED1_pin)
-#define LED1_off()     pin_set(LED1_port, LED1_pin)
+#define LED_blink()    do{if(LEDSon)pin_toggle(LED0_port, LED0_pin);}while(0)
+#define LED_on()       do{if(LEDSon)pin_clear(LED0_port, LED0_pin);}while(0)
+#define LED_off()      do{if(LEDSon)pin_set(LED0_port, LED0_pin);}while(0)
+#define LED1_blink()   do{if(LEDSon)pin_toggle(LED1_port, LED1_pin);}while(0)
+#define LED1_on()      do{if(LEDSon)pin_clear(LED1_port, LED1_pin);}while(0)
+#define LED1_off()     do{if(LEDSon)pin_set(LED1_port, LED1_pin);}while(0)
 
 // GPS USART == USART2, LIDAR USART == USART3
 #define GPS_USART   (2)
@@ -68,6 +70,8 @@ typedef struct{
     curtime Time;
 } trigtime;
 
+// turn on/off LEDs:
+extern uint8_t LEDSon;
 // time of triggers shot
 extern trigtime shottime[TRIGGERS_AMOUNT];
 // if trigger[N] shots, the bit N will be 1
diff --git a/F1-nolib/chronometer/lidar.c b/F1-nolib/chronometer/lidar.c
index dd2ee14..dc363c6 100644
--- a/F1-nolib/chronometer/lidar.c
+++ b/F1-nolib/chronometer/lidar.c
@@ -25,7 +25,7 @@ uint16_t last_lidar_stren = 0;
 uint16_t lidar_triggered_dist = 0;
 
 void parse_lidar_data(char *txt){
-    static int triggered = 0;
+    static uint8_t triggered = 0;
     last_lidar_dist = txt[2] | (txt[3] << 8);
     last_lidar_stren = txt[4] | (txt[5] << 8);
     if(last_lidar_stren < LIDAR_LOWER_STREN) return; // weak signal
@@ -46,8 +46,10 @@ void parse_lidar_data(char *txt){
         }
     }else{
         if(last_lidar_dist > the_conf.dist_min && last_lidar_dist < the_conf.dist_max){
+            savetrigtime();
             triggered = 1;
             lidar_triggered_dist = last_lidar_dist;
+            fillshotms(3);
 #ifdef EBUG
             SEND("Triggered! distance=");
             printu(1, last_lidar_dist);
diff --git a/F1-nolib/chronometer/main.c b/F1-nolib/chronometer/main.c
index f479409..1c4fef0 100644
--- a/F1-nolib/chronometer/main.c
+++ b/F1-nolib/chronometer/main.c
@@ -19,7 +19,7 @@
  * MA 02110-1301, USA.
  */
 
-//#include "adc.h"
+#include "adc.h"
 #include "GPS.h"
 #include "flash.h"
 #include "hardware.h"
@@ -174,6 +174,24 @@ static char *get_USB(){
     return NULL;
 }
 
+/*
+void linecoding_handler(usb_LineCoding __attribute__((unused)) *lc){ // get/set line coding
+    DBG("linecoding_handler");
+}*/
+
+void clstate_handler(uint16_t __attribute__((unused)) val){ // lesser bits of val: DTR|RTS
+    USB_send("Chronometer version " VERSION ".\n");
+#ifdef EBUG
+    if(val & 1) DBG("RTS set");
+    if(val & 2) DBG("DTR set");
+#endif
+}
+
+/*
+void break_handler(){ // client disconnected
+    DBG("break_handler");
+}*/
+
 int main(void){
     uint32_t lastT = 0;
     sysreset();
@@ -185,7 +203,10 @@ int main(void){
     get_userconf();
     // !!! hw_setup() should be the first in setup stage
     hw_setup();
+    USB_setup();
+    USBPU_ON();
     usarts_setup();
+#ifdef EBUG
     SEND("Chronometer version " VERSION ".\n");
     if(RCC->CSR & RCC_CSR_IWDGRSTF){ // watchdog reset occured
         SEND("WDGRESET=1\n");
@@ -193,11 +214,10 @@ int main(void){
     if(RCC->CSR & RCC_CSR_SFTRSTF){ // software reset occured
         SEND("SOFTRESET=1\n");
     }
+#endif
     RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
-
-    USB_setup();
     iwdg_setup();
-    USBPU_ON();
+
 
     while (1){
         IWDG->KR = IWDG_REFRESH; // refresh watchdog
@@ -265,6 +285,7 @@ int main(void){
                 parse_lidar_data(txt);
             }
         }
+        chkADCtrigger();
     }
     return 0;
 }
diff --git a/F1-nolib/chronometer/str.c b/F1-nolib/chronometer/str.c
index 7d89339..1e511ba 100644
--- a/F1-nolib/chronometer/str.c
+++ b/F1-nolib/chronometer/str.c
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "adc.h"
 #include "flash.h"
 #include "str.h"
 #include "time.h"
@@ -57,18 +58,30 @@ char *getchr(const char *str, char symbol){
     return NULL;
 }
 
+#define sendu(x) do{USB_send(u2str(x));}while(0)
+
+static void sendi(int32_t I){
+    if(I < 0){
+        USB_send("-");
+        I = -I;
+    }
+    USB_send(u2str((uint32_t)I));
+}
+
 /**
  * @brief showuserconf - show configuration over USB
  */
 static void showuserconf(){
-    USB_send("\nCONFIG:\nDISTMIN="); USB_send(u2str(the_conf.dist_min));
-    USB_send("\nDISTMAX="); USB_send(u2str(the_conf.dist_max));
-    USB_send("\nPULLUPS="); USB_send(u2str(the_conf.trig_pullups));
-    USB_send("\nTRIGLVL="); USB_send(u2str(the_conf.trigstate));
+    USB_send("\nCONFIG:\nDISTMIN="); sendu(the_conf.dist_min);
+    USB_send("\nDISTMAX="); sendu(the_conf.dist_max);
+    USB_send("\nADCMIN="); sendi(the_conf.ADC_min);
+    USB_send("\nADCMAX="); sendi(the_conf.ADC_max);
+    USB_send("\nPULLUPS="); sendu(the_conf.trig_pullups);
+    USB_send("\nTRIGLVL="); sendu(the_conf.trigstate);
     USB_send("\nTRIGPAUSE={");
     for(int i = 0; i < TRIGGERS_AMOUNT; ++i){
         if(i) USB_send(", ");
-        USB_send(u2str(the_conf.trigpause[i]));
+        sendu(the_conf.trigpause[i]);
     }
     USB_send("}");
     USB_send("\nENDCONFIG\n");
@@ -89,9 +102,14 @@ int parse_USBCMD(char *cmd){
     IWDG->KR = IWDG_REFRESH;
     if(*cmd == '?'){ // help
         USB_send("Commands:\n"
+                 CMD_ADCMAX    " - max ADC value treshold for trigger\n"
+                 CMD_ADCMIN    " - min -//- (triggered when ADval>min & <max\n"
+                 CMD_GETADCVAL " - get ADC value\n"
                  CMD_DISTMIN   " - min distance threshold (cm)\n"
                  CMD_DISTMAX   " - max distance threshold (cm)\n"
                  CMD_GPSSTR    " - current GPS data string\n"
+                 CMD_LEDS      "S - turn leds on/off (1/0)\n"
+                 CMD_GETMCUTEMP " - MCU temperature\n"
                  CMD_PULLUP    "NS - triggers pullups state (N - trigger No, S - 0/1 for off/on)\n"
                  CMD_SHOWCONF  " - show current configuration\n"
                  CMD_PRINTTIME " - print time\n"
@@ -99,6 +117,7 @@ int parse_USBCMD(char *cmd){
                  CMD_TRIGLVL   "NS - working trigger N level S\n"
                  CMD_TRGPAUSE  "NP - pause (P, ms) after trigger N shots\n"
                  CMD_TRGTIME   "N - show last trigger N time\n"
+                 CMD_GETVDD    " - Vdd value\n"
                  );
     }else if(CMP(cmd, CMD_PRINTTIME) == 0){
         USB_send(get_time(&current_time, get_millis()));
@@ -132,7 +151,6 @@ int parse_USBCMD(char *cmd){
         }
     }else if(CMP(cmd, CMD_GPSSTR) == 0){ // show GPS status string
         showGPSstr = 1;
-        return 0;
     }else if(CMP(cmd, CMD_PULLUP) == 0){
         DBG("Pullups");
         cmd += sizeof(CMD_PULLUP) - 1;
@@ -159,7 +177,6 @@ int parse_USBCMD(char *cmd){
         succeed = 1;
     }else if(CMP(cmd, CMD_SHOWCONF) == 0){
         showuserconf();
-        return 0;
     }else if(CMP(cmd, CMD_TRGPAUSE) == 0){
         DBG("Trigger pause");
         cmd += sizeof(CMD_TRGPAUSE) - 1;
@@ -176,7 +193,59 @@ int parse_USBCMD(char *cmd){
         uint8_t Nt = *cmd++ - '0';
         if(Nt > TRIGGERS_AMOUNT - 1) goto bad_number;
         show_trigger_shot((uint8_t)1<<Nt);
-        return 0;
+    }else if(CMP(cmd, CMD_GETVDD) == 0){
+        USB_send("VDD=");
+        uint32_t vdd = getVdd();
+        sendu(vdd/100);
+        vdd %= 100;
+        if(vdd < 10) USB_send(".0");
+        else USB_send(".");
+        sendu(vdd);
+        USB_send("\n");
+    }else if(CMP(cmd, CMD_GETMCUTEMP) == 0){
+        int32_t t = getMCUtemp();
+        USB_send("MCUTEMP=");
+        if(t < 0){
+            t = -t;
+            USB_send("-");
+        }
+        sendu(t/10);
+        USB_send(".");
+        sendu(t%10);
+        USB_send("\n");
+    }else if(CMP(cmd, CMD_GETADCVAL) == 0){
+        USB_send("ADCVAL=");
+        sendu(getADCval(0));
+        USB_send("\n");
+    }else if(CMP(cmd, CMD_LEDS) == 0){
+        uint8_t Nt = cmd[sizeof(CMD_LEDS) - 1] - '0';
+        if(Nt > 1) goto bad_number;
+        USB_send("LEDS=");
+        if(Nt){
+            LEDSon = 1;
+            USB_send("ON\n");
+        }else{
+            LED_off();
+            LED1_off();
+            LEDSon = 0;
+            USB_send("OFF\n");
+        }
+    }else if(CMP(cmd, CMD_ADCMAX) == 0){ // set low limit
+        GETNUM(CMD_ADCMAX);
+        if(N < -4096 || N > 4096) goto bad_number;
+        if(the_conf.ADC_max != (int16_t)N){
+            conf_modified = 1;
+            the_conf.ADC_max = (int16_t) N;
+            succeed = 1;
+        }
+    }else if(CMP(cmd, CMD_ADCMIN) == 0){ // set low limit
+        GETNUM(CMD_ADCMIN);
+        if(N < -4096 || N > 4096) goto bad_number;
+        if(the_conf.ADC_min != (int16_t)N){
+            conf_modified = 1;
+            the_conf.ADC_min = (int16_t) N;
+            succeed = 1;
+        }
     }else return 1;
     IWDG->KR = IWDG_REFRESH;
     if(succeed) USB_send("Success!\n");
@@ -198,7 +267,7 @@ void show_trigger_shot(uint8_t tshot){
         else continue;
         if(trigger_shot & X) trigger_shot &= ~X;
         USB_send("TRIG");
-        USB_send(u2str(i));
+        sendu(i);
         USB_send("=");
         USB_send(get_time(&shottime[i].Time, shottime[i].millis));
         USB_send("\n");
diff --git a/F1-nolib/chronometer/str.h b/F1-nolib/chronometer/str.h
index 7f06f47..5cc21ae 100644
--- a/F1-nolib/chronometer/str.h
+++ b/F1-nolib/chronometer/str.h
@@ -26,10 +26,8 @@
 // lower and upper limits to capture
 #define CMD_DISTMIN     "distmin"
 #define CMD_DISTMAX     "distmax"
-#define CMD_ADC1MIN     "adc1min"
-#define CMD_ADC2MIN     "adc2min"
-#define CMD_ADC1MAX     "adc1max"
-#define CMD_ADC2MAX     "adc2max"
+#define CMD_ADCMIN      "adcmin"
+#define CMD_ADCMAX      "adcmax"
 #define CMD_PRINTTIME   "time"
 #define CMD_STORECONF   "store"
 #define CMD_GPSSTR      "gpsstring"
@@ -38,6 +36,10 @@
 #define CMD_TRIGLVL     "triglevel"
 #define CMD_TRGPAUSE    "trigpause"
 #define CMD_TRGTIME     "trigtime"
+#define CMD_GETVDD      "vdd"
+#define CMD_GETMCUTEMP  "mcutemp"
+#define CMD_GETADCVAL   "adcval"
+#define CMD_LEDS        "leds"
 
 extern uint8_t showGPSstr;