Hi, I have a very strange problem, my robot I built doesn’t do what the code says when it is powered by batteries (9v and 1.5v ). checked the values and all the batteries are new. no large loads my 1sheeld doesnt even send messages when powered by the batteries. but all works when connected by USB. has something to do with impedances? I dont know… heres the code:
#define trigPin1 9
#define echoPin1 8
#define trigPin2 10
#define echoPin2 11
#define pwmOutput 6
#define Vtest A1
#define CUSTOM_SETTINGS
#define INCLUDE_NOTIFICATION_SHIELD
#define INCLUDE_SLIDER_SHIELD
#define INCLUDE_TERMINAL_SHIELD
#define INCLUDE_MIC_SHIELD
float duration, distance1,distance2;
#include “OneSheeld.h”
int value;
void setup() {
// put your setup code here, to run once:
OneSheeld.begin();
pinMode(trigPin1, OUTPUT);
pinMode(echoPin1, INPUT);
pinMode(trigPin2, OUTPUT);
pinMode(echoPin2, INPUT);
pinMode(pwmOutput,OUTPUT);
// test
Terminal.println(“Starting robot test”);
delay(3000);
Terminal.println("please turn L298 power on then verify no warning is shown ");
delay(5000);
while(analogRead(A1)<100){
Terminal.println(“L298 power low”);
Terminal.println(analogRead(A1));
delay(2000);
}
Terminal.println(“moving test: robot will move foreward and backwards”);
delay(5000);
digitalWrite(pwmOutput, HIGH);
delay(1000);
digitalWrite(pwmOutput, LOW);
delay(1000);
digitalWrite(pwmOutput, HIGH);
delay(2000);
digitalWrite(pwmOutput, LOW);
delay(1000);
//
Terminal.println(“testing IR sensor”);
delay(3000);
Terminal.println(“please place an object in front of the sensor and check for correct readings”);
while(analogRead(0)>200);
Terminal.println(“IR sensor OK”);
}
void loop() {
// put your main code here, to run repeatedly:
// sonar 1
digitalWrite(trigPin1, LOW);
delayMicroseconds(2);
digitalWrite(trigPin1, HIGH);
duration=pulseIn(echoPin1, HIGH);
distance1=(duration/2)*0.0343;
Terminal.print(“Distance1=”);
if(distance1>=400||distance1<=2){
Terminal.println(“out of range”);
analogWrite(pwmOutput,0);
delay(3000);
OneSheeld.delay(1000);
}
else{
Terminal.print(distance1);
Terminal.println(" cm");
}
// sonar 2
digitalWrite(trigPin2, LOW);
delayMicroseconds(2);
digitalWrite(trigPin2, HIGH);
duration=pulseIn(echoPin1, HIGH);
distance2=(duration/2)*0.0343;
Terminal.print(“Distance2=”);
if(distance2>=400||distance2<=2){
Terminal.println(“out of range”);
analogWrite(pwmOutput,0);
delay(3000);
OneSheeld.delay(1000);
}
else{
Terminal.print(distance2);
Terminal.println(" cm");
}
if(distance1>11||distance1<9||distance2>11||distance2<9){
Notification.notifyPhone(“crack”);
analogWrite(pwmOutput,0);
delay(3000);
OneSheeld.delay(1000);
}
value = Slider.getValue();
analogWrite(pwmOutput,value);
while(analogRead(0)<200){
analogWrite(pwmOutput,0);
Notification.notifyPhone(“Obstacle”);
OneSheeld.delay(1000);
}
}