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kiber_tc_2018 [2019/04/16 20:25] super_admin [Вариант 2.1. Простейший релейный регулятор движения по линии + ультразвуковой датчик препятствия] |
kiber_tc_2018 [2019/04/23 19:14] super_admin [Вариант 2.1. Простейший релейный регулятор движения по линии + ультразвуковой датчик препятствия (промежуточный вариант, требует доработки)] |
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Строка 1548: | Строка 1548: | ||
} | } | ||
+ | /* | ||
+ | В библиотеке Ping.cpp | ||
+ | вместо строки | ||
+ | _duration = pulseIn(_pin, HIGH); | ||
+ | следует использовать | ||
+ | _duration = pulseIn(_pin, HIGH, 40000); | ||
+ | */ | ||
</code> | </code> | ||
+ | ==== Вариант 2.2. Простейший релейный регулятор движения по линии + ультразвуковой датчик препятствия (боле-менее работает :-) ==== | ||
+ | |||
+ | <code C++> | ||
+ | #include <Ping.h> | ||
+ | |||
+ | /* | ||
+ | |||
+ | */ | ||
+ | #define PWMA 11 // выходы arduino | ||
+ | #define PWMB 10 | ||
+ | #define AIN1 6 | ||
+ | #define AIN2 7 | ||
+ | #define BIN1 5 | ||
+ | #define BIN2 4 | ||
+ | #define STBY 13 | ||
+ | |||
+ | #define lS 9 | ||
+ | #define rS 8 | ||
+ | |||
+ | int distance = 10; | ||
+ | int ping_distance = 400; | ||
+ | |||
+ | Ping ping = Ping(2); | ||
+ | |||
+ | uint32_t previousMillis = 0; | ||
+ | uint16_t timePeriod = 50; | ||
+ | |||
+ | |||
+ | int min_speed = 120; | ||
+ | int max_speed = 255; | ||
+ | int n_speed = 200; | ||
+ | int dif = 200; | ||
+ | |||
+ | uint8_t lSState; | ||
+ | uint8_t rSState; | ||
+ | |||
+ | int state; | ||
+ | int prevState; | ||
+ | int readyState = 0; | ||
+ | |||
+ | int is_obstacle = 0; | ||
+ | |||
+ | void updateState(int st){ | ||
+ | state = st; | ||
+ | } | ||
+ | |||
+ | void resetState(int st){ | ||
+ | prevState = state; | ||
+ | state = st; | ||
+ | } | ||
+ | |||
+ | |||
+ | //int state; | ||
+ | void setup() { | ||
+ | |||
+ | /* Настроить все 7 выводов на выходы, идущие к драйверу TB6612FNG */ | ||
+ | pinMode(PWMA,OUTPUT); | ||
+ | pinMode(AIN1,OUTPUT); | ||
+ | pinMode(AIN2,OUTPUT); | ||
+ | pinMode(PWMB,OUTPUT); | ||
+ | pinMode(BIN1,OUTPUT); | ||
+ | pinMode(BIN2,OUTPUT); | ||
+ | pinMode(lS,INPUT); | ||
+ | pinMode(rS,INPUT); | ||
+ | Serial.begin(9600); | ||
+ | while (readyState == 0) { | ||
+ | testSensors(); | ||
+ | if (prevState != 11) | ||
+ | readyState = 1; | ||
+ | delay(1000); | ||
+ | } | ||
+ | delay(2000); | ||
+ | startUp(); | ||
+ | } | ||
+ | /* | ||
+ | void checkTimer(){ | ||
+ | uint32_t currentMillis = millis(); | ||
+ | if (currentMillis - previousMillis >= timePeriod){ | ||
+ | Serial.println(millis()); | ||
+ | previousMillis = currentMillis; | ||
+ | } | ||
+ | } | ||
+ | */ | ||
+ | void testSensors(){ | ||
+ | lSState = digitalRead(lS); | ||
+ | rSState = digitalRead(rS); | ||
+ | //Serial.println(lSState); | ||
+ | //Serial.println(rSState); | ||
+ | //Serial.println(""); | ||
+ | |||
+ | if (lSState == 0 && rSState == 0 ){ | ||
+ | //resetState(0); | ||
+ | updateState(0); | ||
+ | //goForward(n_speed); | ||
+ | } | ||
+ | if (lSState == 1 && rSState == 0 ){ | ||
+ | resetState(10); | ||
+ | //goForward(n_speed); | ||
+ | } | ||
+ | // if (current_dist <= dangerous_dist ){ | ||
+ | // resetState(1); | ||
+ | //applyBrakes (); | ||
+ | // } | ||
+ | if (lSState == 1 && rSState == 1 ){ | ||
+ | //if (readyState == 0) | ||
+ | //resetState(11); | ||
+ | updateState(11); | ||
+ | |||
+ | //veerRight(n_speed, dif); | ||
+ | } | ||
+ | if (lSState == 0 && rSState == 1 ){ | ||
+ | resetState(1); | ||
+ | //veerLeft(n_speed, dif); | ||
+ | } | ||
+ | |||
+ | } | ||
+ | |||
+ | void ping_fire(){ | ||
+ | ping.fire(); | ||
+ | //Serial.println("***"); | ||
+ | } | ||
+ | |||
+ | void loop() { | ||
+ | // time ===================== | ||
+ | uint32_t currentMillis = millis(); | ||
+ | if (currentMillis - previousMillis >= timePeriod){ | ||
+ | //Serial.println(millis()); | ||
+ | //Serial.println(ping.centimeters()); | ||
+ | if (ping_distance > distance){ | ||
+ | is_obstacle = 0; | ||
+ | } else { | ||
+ | is_obstacle = 1; | ||
+ | } | ||
+ | ping_distance = ping.centimeters(); | ||
+ | ping_fire(); | ||
+ | previousMillis = currentMillis; | ||
+ | } | ||
+ | //======================= | ||
+ | | ||
+ | if (is_obstacle != 1){ | ||
+ | testSensors(); | ||
+ | updateMotion(n_speed, dif); | ||
+ | } else { | ||
+ | applyBrakes (); | ||
+ | } | ||
+ | |||
+ | // centralLineFollower(); | ||
+ | |||
+ | //delay(1); | ||
+ | |||
+ | } | ||
+ | |||
+ | void updateMotion(int sp, int d){ | ||
+ | switch ( state ) { | ||
+ | case 0: | ||
+ | if (prevState == 1) | ||
+ | //veerLeft(sp, d); | ||
+ | veerRight(sp, d); | ||
+ | else if (prevState == 10) | ||
+ | //veerRight(sp, d); | ||
+ | veerLeft(sp, d); | ||
+ | break; | ||
+ | case 1: | ||
+ | // Code | ||
+ | goForward(sp); | ||
+ | break; | ||
+ | case 10: | ||
+ | // Code | ||
+ | goForward(sp); | ||
+ | break; | ||
+ | case 11: | ||
+ | // Code | ||
+ | if (prevState == 10) | ||
+ | veerRight(sp, d); | ||
+ | else if (prevState == 1) | ||
+ | veerLeft(sp, d); | ||
+ | break; | ||
+ | } | ||
+ | |||
+ | } | ||
+ | |||
+ | void leftLineFollower(){ | ||
+ | //goForward(n_speed); | ||
+ | //applyBrakes (); | ||
+ | //veerRight(n_speed, dif); | ||
+ | //veerLeft(n_speed, dif); | ||
+ | |||
+ | } | ||
+ | void centralLineFollower(){ | ||
+ | |||
+ | } | ||
+ | |||
+ | void goForward (int v) | ||
+ | { | ||
+ | digitalWrite (AIN1,HIGH); | ||
+ | digitalWrite (AIN2,LOW); | ||
+ | analogWrite(PWMA,v); | ||
+ | digitalWrite (BIN1,HIGH); | ||
+ | digitalWrite (BIN2,LOW); | ||
+ | analogWrite(PWMB,v); | ||
+ | } | ||
+ | |||
+ | void goBackward (int v) | ||
+ | { | ||
+ | digitalWrite (AIN1,LOW); | ||
+ | digitalWrite (AIN2,HIGH); | ||
+ | analogWrite(PWMA,v); | ||
+ | digitalWrite (BIN1,LOW); | ||
+ | digitalWrite (BIN2,HIGH); | ||
+ | analogWrite(PWMB,v); | ||
+ | } | ||
+ | |||
+ | void rotateRight (int v) | ||
+ | { | ||
+ | digitalWrite (AIN1,HIGH); | ||
+ | digitalWrite (AIN2,LOW); | ||
+ | analogWrite(PWMA,v); | ||
+ | digitalWrite (BIN1,LOW); | ||
+ | digitalWrite (BIN2,HIGH); | ||
+ | analogWrite(PWMB,v); | ||
+ | } | ||
+ | |||
+ | void rotateLeft (int v) | ||
+ | { | ||
+ | digitalWrite (AIN1,LOW); | ||
+ | digitalWrite (AIN2,HIGH); | ||
+ | analogWrite(PWMA,v); | ||
+ | digitalWrite (BIN1,HIGH); | ||
+ | digitalWrite (BIN2,LOW); | ||
+ | analogWrite(PWMB,v); | ||
+ | } | ||
+ | |||
+ | void veerLeft (int v, int d) | ||
+ | { | ||
+ | digitalWrite (AIN1,HIGH); | ||
+ | digitalWrite (AIN2,LOW); | ||
+ | analogWrite(PWMA,v); | ||
+ | digitalWrite (BIN1,HIGH); | ||
+ | digitalWrite (BIN2,LOW); | ||
+ | analogWrite(PWMB,v -d); | ||
+ | } | ||
+ | |||
+ | void veerRight (int v, int d) | ||
+ | { | ||
+ | digitalWrite (AIN1,HIGH); | ||
+ | digitalWrite (AIN2,LOW); | ||
+ | analogWrite(PWMA,v -d); | ||
+ | digitalWrite (BIN1,HIGH); | ||
+ | digitalWrite (BIN2,LOW); | ||
+ | analogWrite(PWMB,v ); | ||
+ | } | ||
+ | |||
+ | void applyBrakes () | ||
+ | { | ||
+ | digitalWrite (AIN1,HIGH); | ||
+ | digitalWrite (AIN2,HIGH); | ||
+ | analogWrite(PWMA,255); | ||
+ | digitalWrite (BIN1,HIGH); | ||
+ | digitalWrite (BIN2,HIGH); | ||
+ | analogWrite(PWMB,255); | ||
+ | } | ||
+ | |||
+ | void startUp () | ||
+ | { | ||
+ | digitalWrite(STBY,HIGH); | ||
+ | } | ||
+ | |||
+ | |||
+ | |||
+ | void shutDown () | ||
+ | { | ||
+ | digitalWrite(STBY,LOW); | ||
+ | } | ||
+ | </code> | ||
==== Простой таймер (прерывание по таймеру) ==== | ==== Простой таймер (прерывание по таймеру) ==== | ||