Void function repeatation?

MIT App Inventor Help
1

I want void 'move _forward' to repeat three times when I press the button in the android app. How should I change the blocks?
This is the sketch:

#include "HCPCA9685.h"
#include <BluetoothSerial.h>

BluetoothSerial BT;   

char state=0;
/* I2C slave address for the device/module. For the HCMODU0097 the default I2C address
is 0x40 */ 
#define  I2CAdd_1 0x40
#define  I2CAdd_2 0x41

int pos1 = 200;
int pos2 = 220;
int pos3 = 180;
int pos4 = 0;
int pos5 = 130;
int pos6 = 100;
int pos7=50;
int pos8=260;
int pos9=140;
int delay1;
int delay2 = 500;

/* Create an instance of the library */
HCPCA9685 HCPCA9685_1(I2CAdd_1);
HCPCA9685 HCPCA9685_2(I2CAdd_2);

void setup() {
  /* Initialise the library and set it to 'servo mode' */

  // Initialise both modules
  HCPCA9685_1.Init(SERVO_MODE);
  HCPCA9685_2.Init(SERVO_MODE);

  // Wake both devices up
  HCPCA9685_1.Sleep(false);
  HCPCA9685_2.Sleep(false);

  unsigned int Pos;
  
Serial.begin(9600);
BT.begin(9600);
}

/* Move Forward */
void move_forward() {
  for (int Pos = pos5 ; Pos >= pos7 ; Pos--) {
    HCPCA9685_1.Servo(1, Pos);
    HCPCA9685_1.Servo(7, Pos);
    HCPCA9685_1.Servo(13, Pos);
    delay(delay1);
  }
}

/* Move Backward */
void move_backward() {
  for (int PosC = pos3 , PosD = pos2 ; PosC <= pos2 || PosD >= pos3 ; PosC++ , PosD--) {
    HCPCA9685_1.Servo(0, PosC);
    HCPCA9685_1.Servo(3, PosD);
    HCPCA9685_1.Servo(6, PosC);
    HCPCA9685_1.Servo(9, PosC);
    HCPCA9685_1.Servo(12, PosD);
    HCPCA9685_1.Servo(15, PosC);
    delay(delay1);
  }
}

/* Turn Right */
void turn_right() {
  for (int PosC = pos2 , PosD = pos3 ; PosC >= pos3 || PosD <= pos2 ; PosC-- , PosD++) {
    HCPCA9685_1.Servo(0, PosD);
    HCPCA9685_1.Servo(6, PosD);
    HCPCA9685_1.Servo(12, PosD);
    delay(delay1);
  }  
}

/* Turn Left */
void turn_left() {
  for (int Pos = pos7 ; Pos <= pos5 ; Pos++) {
    HCPCA9685_1.Servo(4, Pos);
    HCPCA9685_1.Servo(10, Pos);
    HCPCA9685_2.Servo(0, Pos);
    delay(1);
  }    
}

/* Stop Move */
void move_stop() {
}

void loop() {
  if (BT.available() >0) {     
    int ch = BT.read();

      switch(ch){
         case 250: move_forward(); break;
         
         case 260: turn_right(); break;
         
         case 270: turn_left(); break;
         
      }
       Serial.print(ch);
//    }
  }
}

This is the block:

blocks(8)
blocks(8)792×1146 70.4 KB

3

Add a counter variable, equal to 0. Every time Clock1.Timer fires, increment this counter by 1. Once this is done, check if it's greater than 2 (or equal to 3). If it is, set the value to 0, and set Clock1.TimerEnabled to false.

4

You know that one byte numbers only go up to 255, right?

2 Likes
5

Sorry I don't understand what you say exactly. could you please show with blocks?

6

No I didn't know. Thank you for your notice.