Device: Arduino UNO
I think I have my HC-05 working and wired correctly. I was able to launch ArduDroid and connect to the HC-05 and I can see my name come up "Kevin Test: in the test GET DATA area of the app:
The problem I think is that I am not able to send data or control the LED light (in below picture). You can see the red wire plugged from the positive terminal of the red LED into PIN 11 on the Arduino. The problem is in ArduDroid app when I slide the bar for 11 in the app, the LED light is not responding. Is there a test I can do to send data to the HC-05 to make a light blink or send a message from the app to the Terminal window in the Arduino application on my PC? I know the LED is wired correctly, I was able to modify the code in a test to make it manually blink on pin 11.
Here is the original wiring diagram I followed except I had to daisychain two 1k resistors and I didnt put a resistor on the LED ground because I am running 3.3 volts through the board and wont have the LED on long anyway.
Here is the tutorial and code I used
/*
PROJECT: ArduDroid
PROGRAMMER: Hazim Bitar (techbitar at gmail dot com)
DATE: Oct 31, 2013
FILE: ardudroid.ino
LICENSE: Public domain
*/
#define START_CMD_CHAR '*'
#define END_CMD_CHAR '#'
#define DIV_CMD_CHAR '|'
#define CMD_DIGITALWRITE 10
#define CMD_ANALOGWRITE 11
#define CMD_TEXT 12
#define CMD_READ_ARDUDROID 13
#define MAX_COMMAND 20 // max command number code. used for error checking.
#define MIN_COMMAND 10 // minimum command number code. used for error checking.
#define IN_STRING_LENGHT 40
#define MAX_ANALOGWRITE 255
#define PIN_HIGH 3
#define PIN_LOW 2
String inText;
void setup() {
Serial.begin(9600);
Serial.println("ArduDroid 0.12 Alpha by TechBitar (2013)");
Serial.flush();
}
void loop()
{
Serial.flush();
int ard_command = 0;
int pin_num = 0;
int pin_value = 0;
char get_char = ' '; //read serial
// wait for incoming data
if (Serial.available() < 1) return; // if serial empty, return to loop().
// parse incoming command start flag
get_char = Serial.read();
if (get_char != START_CMD_CHAR) return; // if no command start flag, return to loop().
// parse incoming command type
ard_command = Serial.parseInt(); // read the command
// parse incoming pin# and value
pin_num = Serial.parseInt(); // read the pin
pin_value = Serial.parseInt(); // read the value
// 1) GET TEXT COMMAND FROM ARDUDROID
if (ard_command == CMD_TEXT){
inText =""; //clears variable for new input
while (Serial.available()) {
char c = Serial.read(); //gets one byte from serial buffer
delay(5);
if (c == END_CMD_CHAR) { // if we the complete string has been read
// add your code here
break;
}
else {
if (c != DIV_CMD_CHAR) {
inText += c;
delay(5);
}
}
}
}
// 2) GET digitalWrite DATA FROM ARDUDROID
if (ard_command == CMD_DIGITALWRITE){
if (pin_value == PIN_LOW) pin_value = LOW;
else if (pin_value == PIN_HIGH) pin_value = HIGH;
else return; // error in pin value. return.
set_digitalwrite( pin_num, pin_value); // Uncomment this function if you wish to use
return; // return from start of loop()
}
// 3) GET analogWrite DATA FROM ARDUDROID
if (ard_command == CMD_ANALOGWRITE) {
analogWrite( pin_num, pin_value );
// add your code here
return; // Done. return to loop();
}
// 4) SEND DATA TO ARDUDROID
if (ard_command == CMD_READ_ARDUDROID) {
// char send_to_android[] = "Place your text here." ;
// Serial.println(send_to_android); // Example: Sending text
Serial.print(" Analog 0 = ");
Serial.println(analogRead(A0)); // Example: Read and send Analog pin value to Arduino
return; // Done. return to loop();
}
}
// 2a) select the requested pin# for DigitalWrite action
void set_digitalwrite(int pin_num, int pin_value)
{
switch (pin_num) {
case 13:
pinMode(13, OUTPUT);
digitalWrite(13, pin_value);
// add your code here
break;
case 12:
pinMode(12, OUTPUT);
digitalWrite(12, pin_value);
// add your code here
break;
case 11:
pinMode(11, OUTPUT);
digitalWrite(11, pin_value);
// add your code here
break;
case 10:
pinMode(10, OUTPUT);
digitalWrite(10, pin_value);
// add your code here
break;
case 9:
pinMode(9, OUTPUT);
digitalWrite(9, pin_value);
// add your code here
break;
case 8:
pinMode(8, OUTPUT);
digitalWrite(8, pin_value);
// add your code here
break;
case 7:
pinMode(7, OUTPUT);
digitalWrite(7, pin_value);
// add your code here
break;
case 6:
pinMode(6, OUTPUT);
digitalWrite(6, pin_value);
// add your code here
break;
case 5:
pinMode(5, OUTPUT);
digitalWrite(5, pin_value);
// add your code here
break;
case 4:
pinMode(4, OUTPUT);
digitalWrite(4, pin_value);
// add your code here
break;
case 3:
pinMode(3, OUTPUT);
digitalWrite(3, pin_value);
// add your code here
break;
case 2:
pinMode(2, OUTPUT);
digitalWrite(2, pin_value);
// add your code here
break;
// default:
// if nothing else matches, do the default
// default is optional
}
}