The original post can be found through this link: Control RGB lights from Android with Arduino & Bluetooth LE (BLE)
Aside from following the processes exactly as described in the article, I also did some twist to adapt it to what is available in my chest. The first thing I did is to deactivate the ibeacon function by issuing the following AT command:
AT+IBEA0To check whether ibeacon function is activated or not, this AT command is used:
AT+IBEA?HM-10 will respond: OK Get 1|0
Ibeacon is activated if it returns 1 and deactivated when it returns 0.
Here are the materials and components I used:
1. HM10 BLE module
2. Arduino Pro Mini 8Mhz and 3.3V
3. Dupont wires
4. The RS232-TTL Adaptor that I used to upload sketch on the Pro Mini
5. Li-Poly Battery
6. BreadBoard
I will still be using the same connection just like what I did in my previous testing of HM-10 and was described in detail in my previous post. If you haven't read it yet, you may click on this link: HM10 BLE Module with Ibeacon .
With that set-up, all I need is to upload the sketch as described in the reference article but since I don't have an RGB LED, I could just use the LED in the arduino pro mini which is connected to digital pin 13. Digital pin 13 is not a PWM pin so I can only turn it on or off and not able to dim it.
I also downloaded the android app in the reference article and installed on my android phone.
Test Result:
It was awesome!!!
Here's the video of my testing:
This is the sketch that I used:
#include <SoftwareSerial.h>
int bluetoothTx = 3; // TX-O pin of bluetooth mate, Arduino D2
int bluetoothRx = 2; // RX-I pin of bluetooth mate, Arduino D3
SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);
const int redPin = 13;
const int greenPin = 5;
const int bluePin = 6;
void setup() {
// initialize serial:
Serial.begin(9600);
// make the pins outputs:
pinMode(redPin, OUTPUT);
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
bluetooth.begin(115200); // The Bluetooth Mate defaults to 115200bps
delay(100); // Short delay, wait for the Mate to send back CMD
bluetooth.println("U,9600,N"); // Temporarily Change the baudrate to 9600, no parity
// 115200 can be too fast at times for NewSoftSerial to relay the data reliably
bluetooth.begin(9600);
}
void loop() {
// if there's any serial available, read it:
if(bluetooth.available()) // If the bluetooth sent any characters
{
while (bluetooth.available() > 0) {
// look for the next valid integer in the incoming serial stream:
int red = bluetooth.parseInt();
// do it again:
int green = bluetooth.parseInt();
// do it again:
int blue = bluetooth.parseInt();
// look for the newline. That's the end of your
// sentence:
if (bluetooth.read() == '\n') {
// constrain the values to 0 - 255 and invert
// if you're using a common-cathode LED, just use "constrain(color, 0, 255);"
red = 255 - constrain(red, 0, 255);
green = 255 - constrain(green, 0, 255);
blue = 255 - constrain(blue, 0, 255);
// fade the red, green, and blue legs of the LED:
analogWrite(redPin, red);
analogWrite(greenPin, green);
analogWrite(bluePin, blue);
}
}
}
}
I am still using the software serial library because that was my previous setup and I wanted to use the original serial port to communicate with the pc when ever it is needed or necessary.
