Merge pull request #29 from arpitpatawat/arpit

completed Obstacle sensor project

Obstacle sensor/obstacle_detector.ino

@@ -0,0 +1,34 @@
+int trigger_pin = 2;
+int echo_pin = 3;
+//int buzzer_pin = 10; 
+int time;
+int distance; 
+void setup() 
+{
+        Serial.begin (9600); 
+        pinMode (trigger_pin, OUTPUT); 
+        pinMode (echo_pin, INPUT);
+     //   pinMode (buzzer_pin, OUTPUT);
+}
+void loop() 
+{
+    digitalWrite (trigger_pin, HIGH);
+    delayMicroseconds (10);
+    digitalWrite (trigger_pin, LOW);
+    time = pulseIn (echo_pin, HIGH);
+    distance = (time * 0.034) / 2;
+
+  if (distance <= 10) 
+        {
+        Serial.println ("Very close to sensor! ");     
+       // digitalWrite (buzzer_pin, HIGH);
+        delay (500);
+        }
+  else {
+        Serial.println ("Obstacle detected");
+        Serial.print (" Distance = ");              
+        Serial.println (distance);        
+       // digitalWrite (buzzer_pin, LOW);
+        delay (500);        
+       } 
+}

Obstacle sensor/readme.md

@@ -1 +1 @@
-
+Obstacle detector - in this project, we made an obstacle detector using arduino and ultra sonic sensor.when we start our porgram, our ultrasonic sensor will be powered on and when any object comes in its range, then we will display "Obstacle detected" along with the distance of object from the sensor.

miscellaneous/keypad using ALP programing/micro project.pdsprj.DESKTOP-MPSGP29.ARPIT.workspace

@@ -0,0 +1,60 @@
+<?xml version='1.0' encoding='UTF-8' standalone='yes'?>
+<WORKSPACE>
+ <FRAME activewindow="0">
+  <PLACEMENT>2c0000000200000003000000ffffffffffffffffffffffffffffffff70000000830000008c06000071040000</PLACEMENT>
+  <WINDOW type="default" module="ISIS"/>
+ </FRAME>
+ <MODULE name="VSMDEBUG">
+  <PWI>
+   <POPUP w="800" x="48" flags="00000002" y="160" h="200" pid="0" iid="-1">
+    <PROPERTIES>
+     <ITEM name="Message Column Width">661</ITEM>
+     <ITEM name="ShowGrid">No</ITEM>
+     <ITEM name="Source Column Width">100</ITEM>
+     <ITEM name="Time Column Width">120</ITEM>
+     <ITEM name="Version">100</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="350" x="68" flags="00000032" y="180" h="200" pid="1" iid="-1">
+    <PROPERTIES>
+     <ITEM name="Address Column Width">82</ITEM>
+     <ITEM name="AutoResize">No</ITEM>
+     <ITEM name="Gridlines">Yes</ITEM>
+     <ITEM name="Name Column Width">82</ITEM>
+     <ITEM name="ShowAddresses">Yes</ITEM>
+     <ITEM name="ShowPreviousValues">No</ITEM>
+     <ITEM name="ShowTypes">No</ITEM>
+     <ITEM name="ShowWatchPoint">Yes</ITEM>
+     <ITEM name="TriggerMode">0</ITEM>
+     <ITEM name="Value Column Width">82</ITEM>
+     <ITEM name="Version">100</ITEM>
+     <ITEM name="Watch Expression Column Width">82</ITEM>
+     <ITEM name="nItems">0</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="24" x="88" flags="00000008" y="200" h="17" pid="1" iid="1">
+    <PROPERTIES/>
+   </POPUP>
+   <POPUP w="8" x="108" flags="0000000a" y="220" h="16" pid="3" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000000</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="8" x="128" flags="0000000a" y="240" h="16" pid="2" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000080</ITEM>
+    </PROPERTIES>
+   </POPUP>
+  </PWI>
+ </MODULE>
+</WORKSPACE>

miscellaneous/keypad using ALP programing/project.asm

@@ -0,0 +1,294 @@
+ORG 0000H
+CLR P2.7 ; port 2.7 will be used for buzzer
+MOV R5,#3D ;number of attempts
+;--------------------------------
+MAIN:
+ACALL LCD_INIT ; initialize LCD
+MOV DPTR,#INITIAL_MSG ;DPTR point to initial text
+ACALL SEND_DAT ;DISPLAY DPTR content on LCD
+ACALL DELAY ;GIVE DELAY 
+ACALL LINE2 ;MOVE TO LINE 2
+ACALL READ_KEYPRESS ;take input from keypad
+ACALL DELAY ;give some delay
+ACALL CLRSCR ; clear our screen
+MOV DPTR, #CHECK_CODE_MSG ;send checking code.. msg to lcd
+ACALL SEND_DAT
+ACALL DELAY2
+ACALL CHECK_PASSWORD  ;CHECK for correct password
+SJMP MAIN ;short jump to main
+;---------------------------------
+LCD_INIT:MOV DPTR,#MYDATA
+C1:CLR A
+MOVC A,@A+DPTR
+JZ DAT ; jump if A  = 0
+ACALL COMNWRT
+ACALL  DELAY
+INC DPTR
+SJMP C1
+DAT:RET
+;---------------------------------
+SEND_DAT:  
+CLR A
+MOVC A,@A+DPTR
+JZ AGAIN ; jump if A = 0
+ACALL DATAWRT
+ACALL DELAY
+INC DPTR
+SJMP SEND_DAT
+AGAIN: RET
+;--------------------------------- 
+READ_KEYPRESS:
+MOV R0,#5D  ; R0 = 5
+MOV R1,#160D ; R1= 160
+ROTATE:ACALL KEY_SCAN   ;take the input key
+MOV @R1,A ;take the key pressed value and store at address of R1 i.e. 160
+ACALL DATAWRT ; display the key on LCD
+ACALL DELAY2 ; delay
+ACALL DELAY2 ;
+INC R1
+DJNZ R0,ROTATE ;repeat this process for 5 time
+RET
+;----------------------------------
+CHECK_PASSWORD:MOV R0,#5D  ;R0 = 5
+MOV R1,#160D ; R1= 160
+MOV DPTR,#PASSWORD ;DPTR Point to actual PASSWORD
+RPT:CLR A ; A = 0
+MOVC A,@A+DPTR ; A = FIRST NUMBER OF THE ACTUAL PASSWORD
+XRL A,@R1 ; XOR with the actual password
+;if both the numbers are equal then A = 0;
+JNZ FAIL ; jump if a not = 0
+INC R1
+INC DPTR
+DJNZ R0,RPT ;repeat this process for 5 times
+ACALL SUCCESS
+RET
+;-----------------------------------
+SUCCESS:ACALL CLRSCR
+ACALL DELAY2
+MOV DPTR,#TEXT_S1
+ACALL SEND_DAT ;display correct password
+ACALL DELAY2
+ACALL LINE2
+MOV DPTR,#TEXT_S2
+ACALL SEND_DAT ;display opening door
+ACALL DELAY2
+CLR P2.3
+CLR P2.4 
+;ROTATE MOTOR CLOCK WISE 90 degree TO OPEN DOOR
+ACALL DELAY3 ; GIVE SECOND DELAY
+ACALL CLRSCR
+MOV DPTR, #TEXT_S3
+ACALL SEND_DAT
+ACALL DELAY2
+ACALL DELAY3; GIVE SECOND DELAY
+SETB P2.3 ;rotate motor antin clock wise
+CLR P2.5
+ACALL DELAY2
+SETB P2.3 ;initial position 
+SETB P2.4
+SETB P2.5
+SETB P2.6
+MOV R5,#3D ;reset attempts value
+RET
+;----------------------------
+FAIL:ACALL CLRSCR 
+MOV DPTR,#TEXT_F1 
+ACALL SEND_DAT ;display incorrect text
+ACALL DELAY2
+ACALL LINE2
+MOV DPTR, #TEXT_F2
+ACALL SEND_DAT ;display access denied text
+ACALL DELAY2
+DJNZ R5,LOOP
+ACALL ALERT
+LOOP: ACALL ATTEMPT
+LJMP MAIN ;go to main funtion
+;------------------------------
+ATTEMPT: ACALL CLRSCR
+MOV DPTR,#ATTEMPT_TEXT ;number of attempts left
+ACALL SEND_DAT
+ACALL DELAY2
+MOV A,#48D ; 48 = 0
+ADD A,R5
+DA A
+ACALL DATAWRT
+ACALL DELAY
+ACALL DELAY2
+ACALL DELAY2 ;
+RET
+;-------------------------------
+ALERT:MOV R2,#10D
+ACALL CLRSCR
+MOV DPTR, #ALERT_TEXT ;display alert text
+ACALL SEND_DAT
+ACALL DELAY2
+BUZZ:SETB P2.7 ;buzzer will turn on and off 10 times
+ACALL DELAY2
+CLR P2.7
+ACALL DELAY2
+DJNZ R2, BUZZ
+MOV R5,#3D
+LJMP MAIN
+;--------------------------------------------------
+;algorithm to check for key scan
+KEY_SCAN:MOV P1,#11111111B  ;TAKE INPUT FROM PORT 1
+;CHECKING FOR ROW 1 COLUMN 1
+CLR P1.0  ;first row checking #11111110
+JB P1.4, NEXT1 ;when 1 column is 1 then no button is pressed , check for next column
+MOV A,#55D ; if above fails then 7 is pressed , A =7
+RET 
+
+NEXT1:JB P1.5,NEXT2 ; ROW 1 COULMN 2
+MOV A,#56D ; A = 8
+RET
+
+NEXT2: JB P1.6,NEXT3 ; ROW 1 COLUMN 3
+MOV A,#57D ; A=9 		  
+RET
+
+NEXT3: JB P1.7,NEXT4 ; ROW 1 COLUMN 4
+MOV A,#47D  ; A=/ DIVIDE
+RET
+
+NEXT4:SETB P1.0 ; ROW 1 IS RESET
+CLR P1.1 ;CHECK FOR ROW 2
+JB P1.4, NEXT5 ; ROW 2 COLUMN 1
+MOV A,#52D ; A = 4
+RET
+
+NEXT5:JB P1.5,NEXT6 ; ROW 2 COLUMN 2
+MOV A,#53D	;A = 5
+RET
+
+NEXT6: JB P1.6,NEXT7 ; ROW 2 COLUMN 3
+MOV A,#54D ;A = 6
+RET
+
+NEXT7: JB P1.7,NEXT8 ; ROW 2 COLUMN 4
+MOV A,#42D ; A = * 
+RET
+
+NEXT8:SETB P1.1 ;ROW IS RESET
+CLR P1.2 ; CHECK FOR ROW 3
+JB P1.4, NEXT9 ; ROW 3 COLUMN 1
+MOV A,#49D  ;A = 1
+RET
+
+NEXT9:JB P1.5,NEXT10 ; ROW 3 COLUMN 2
+MOV A,#50D ;A =2 
+RET
+
+NEXT10: JB P1.6,NEXT11 ; ROW 3 COLUMN 3
+MOV A,#51D ;A = 3
+RET
+
+NEXT11: JB P1.7,NEXT12 ; ROW 3 COLUMN 4
+MOV A,#45D ;A = -
+RET
+
+NEXT12:SETB P1.2 ; ROW 3 IS RESET
+CLR P1.3 ; CHECK FOR ROW 4
+JB P1.4, NEXT13 ; ROW 4 COLUMN 1
+MOV A,#67D ; A = C
+RET
+
+NEXT13:JB P1.5,NEXT14; ROW 4 COLUMN 2
+MOV A,#48D ; A = 0
+RET
+
+NEXT14: JB P1.6,NEXT15 ; ROW 4 COLUMN 3
+MOV A,#61D	 ; A = '='
+RET
+
+NEXT15: JB P1.7,NEXT16; ROW 4 COLUMN 4
+MOV A,#43D ; A = +
+RET
+NEXT16:LJMP KEY_SCAN ; again check for keys
+;-----------------------------------------------
+
+COMNWRT:MOV P3,A  ;to send command
+CLR P2.0 ; R/s = 0
+CLR P2.1 ;R/w =0
+SETB P2.2 ;high
+ACALL DELAY ; delay
+CLR P2.2 ;low
+RET
+
+DATAWRT: MOV P3,A  ;to send data
+SETB P2.0
+CLR P2.1
+SETB P2.2
+ACALL DELAY
+CLR P2.2
+RET
+;-------------------------------------------------
+LINE2: MOV A,#0C0H ;move to line 2 of LCD
+ACALL COMNWRT
+RET
+
+;---------------------------------
+DELAY: MOV R3,#65 ; r3 = 65 , m = 1
+HERE2: MOV R4,#255 ;r4 = 255 , m =1
+HERE: DJNZ R4,HERE ; m = 2
+DJNZ R3,HERE2 ;m =2
+RET ;m =2
+;for here loop , 2 * 255 * 1.085 uS = 553.35 us
+;HERE 2 loop repeats HERE loop 65 times then  553.35 us * 65 = 35967.75uS
+;mov r4 is also repating 65 times  and djnz r3 too so 3 * 65 * 1.085 us = 211uS
+;for return 2 * 1.085 = 2.17uS
+;total machine cycle = 35967.75 + 211 + 2.17 = 36180.92 uS
+;time delay = 0.036 S
+ 
+;------------------------------------------
+DELAY2:	MOV R3,#250D ; R3  = 250
+        MOV TMOD,#01 ; timer 0 mode 1
+BACK2:  MOV TH0,#0FCH 
+        MOV TL0,#018H  ;initial count value = FC18 is loaded into timer
+        SETB TR0 ;starting timer
+HERE5:  JNB TF0,HERE5 ;monitor Timer flag if it is 1
+        CLR TR0 ; stop the timer
+        CLR TF0 ; reset the timer flag
+        DJNZ R3,BACK2 ; repeat this process 250 times
+        RET  
+;COUNT = 65535 - 64536 + 1 = 1000
+; 1000 * 1.085 uS = 1085 uS
+; 1085uS * 250 = 0.271 S
+;--------------------------------------------
+
+DELAY3:MOV TMOD,#10H ;Timer 1, mod 1
+MOV R3,#70 ; for multiple delay
+AGAIN1: MOV TL1,#00H ;TL1=08,low byte of timer
+MOV TH1,#00H ;TH1=01,high byte , TIMER = 0000
+SETB TR1 ;Start timer 1
+BACK: JNB TF1,BACK ;until timer rolls over
+CLR TR1 ;Stop the timer 1
+CLR TF1 ;clear Timer 1 flag
+DJNZ R3,AGAIN1 ;if R3 not zero then
+RET
+;COUNT = 65535 - 0000 + 1 = 65536
+;65536 * 1.085 uS = 71.1065mS
+;71.1065 mS * 70 = 4977.45mS = 5S
+
+;-----------------------------------------
+CLRSCR: MOV A,#01H
+ACALL COMNWRT
+RET
+;----------------------------------------
+ORG 500H
+MYDATA: DB 38H,0EH,01,06,80H,0; 
+;initializer 5 X 7 MATRIX lcd
+;display on cursor blinking
+;clear the display screen
+;cursor shift --> towards right
+;start from the first line
+INITIAL_MSG:   DB "ENTER 5-DIG.CODE",0
+CHECK_CODE_MSG:  DB "CHECKING CODE...",0	
+PASSWORD:DB 49D,50D,51D,52D,53D,0  ;PASSWORD = 1 2 3 4 5
+TEXT_F1: DB "WRONG CODE",0
+TEXT_F2: DB "ACCESS DENIED",0
+TEXT_S1: DB "ACCESS GRANTED",0
+TEXT_S2: DB "OPENING DOOR",0
+TEXT_S3: DB "CLOSING DOOR", 0
+ALERT_TEXT: DB "INTRUDER ALERT !",0
+ATTEMPT_TEXT: DB "ATTEMPTS LEFT:0",0
+END