A
Arduino•2mo ago
Ben

New to arduino, my bluetooth code keeps breaking after a bit, also would like to improve efficiency

Hi! I have never intensely worked with arduino, but I'm currently working on a project to turn on a vinyl player remotely via a servo and an iphone app + bluetooth, as the person I'm working on it for has MS. I followed a youtube tutorial to get code that works, but after a second it tends to break, though the amount of time and actions that cause it to break are not reliable. Additionally, since it's a battery powered device (2x 14500 in series stepped down to 5v) I'd love pointers on how to avoid draining the batteries excessively. Thanks for checking this out!
6 Replies
Ben
BenOP•2mo ago
#include <SoftwareSerial.h>
#include <Servo.h>
Servo myServo;
SoftwareSerial softSerial(2, 3); // RX, TX

char appData;  
String inData = "";
 
void setup() 
{
    Serial.begin(9600);
    Serial.print("Sketch:   ");   Serial.println(__FILE__);
    Serial.print("Uploaded: ");   Serial.println(__DATE__);

    softSerial.begin(9600);
    Serial.println("softSerial started at 9600");

    Serial.println("Set line endings to 'Both NL & CR'");
    myServo.attach(9);
}
 
void loop()
{
  // Read from the UART module and send to the Serial Monitor
  softSerial.listen();  // listen the HM10 port

  while (softSerial.available() > 0) {   // if HM10 sends something then read

    appData = softSerial.read();

    inData = String(appData);  // save the data in string format

    Serial.write(appData);

  }
  if (Serial.available()) {           // Read user input if available.

    delay(10);

    softSerial.write(Serial.read());

  }
  if (inData == "U") {
    Serial.write("To Far");
    myServo.write(180);
    delay(500);
  } 
  if (inData == "M") {
    Serial.write("To Middle");
    myServo.write(90);
    delay(500);
  } 
  if (inData == "D"){
    Serial.write("To Zero");
    myServo.write(0);
    delay(500);
  }

} // void loop()
#include <SoftwareSerial.h>
#include <Servo.h>
Servo myServo;
SoftwareSerial softSerial(2, 3); // RX, TX

char appData;  
String inData = "";
 
void setup() 
{
    Serial.begin(9600);
    Serial.print("Sketch:   ");   Serial.println(__FILE__);
    Serial.print("Uploaded: ");   Serial.println(__DATE__);

    softSerial.begin(9600);
    Serial.println("softSerial started at 9600");

    Serial.println("Set line endings to 'Both NL & CR'");
    myServo.attach(9);
}
 
void loop()
{
  // Read from the UART module and send to the Serial Monitor
  softSerial.listen();  // listen the HM10 port

  while (softSerial.available() > 0) {   // if HM10 sends something then read

    appData = softSerial.read();

    inData = String(appData);  // save the data in string format

    Serial.write(appData);

  }
  if (Serial.available()) {           // Read user input if available.

    delay(10);

    softSerial.write(Serial.read());

  }
  if (inData == "U") {
    Serial.write("To Far");
    myServo.write(180);
    delay(500);
  } 
  if (inData == "M") {
    Serial.write("To Middle");
    myServo.write(90);
    delay(500);
  } 
  if (inData == "D"){
    Serial.write("To Zero");
    myServo.write(0);
    delay(500);
  }

} // void loop()
hmm, it does actually seem to break most often when sent to zero i'll send some serial monitor output in a sec
Ben
BenOP•2mo ago
No description
Ben
BenOP•2mo ago
this is the tutorial I followed https://www.youtube.com/watch?v=SosEZTOwPD0
MYBOTIC
YouTube
Tutorial: How to use HM-10 BLE Module with Arduino to control an LE...
This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with, your IPhone/iPAD, IOS 6 or Android 4.3 above devices, It's easy to use and completely encapsulated, you can set it as slave or master, you can use AT command set the baudrate. Website: https://www.mybotic.com.my/ Facebook: https://www.facebook.com/...
Ben
BenOP•2mo ago
occasionally it seems to reset, could that be because of overdrawing current? the power is 2x 14500s sent through a basic 5v step down to power the nano, servo, and hm-10 in parallel the servo is an aliexpress sg90 actually addendum it breaks the most when moving furthest from whatever i press first if it is because of overloading, is there anything I can do? nothing feels hot
Ben
BenOP•2mo ago
Wiring
No description
Ben
BenOP•2mo ago
No description

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