I have configured a hc-05 bluetooth module as master and a hc-06 module as slave an since the LED on the hc-05 is blinking in a 2s delay they should be paired but no matter what I do I can't send data between the two Arduinos.
Here is the code for the slave (I use the example code from the EasyTransfer module github repo: https://github.com/madsci1016/Arduino-EasyTransfer):
#include <Wire.h>
#include <EasyTransferI2C.h>
//create object
EasyTransferI2C ET;
struct RECEIVE_DATA_STRUCTURE{
//put your variable definitions here for the data you want to receive
//THIS MUST BE EXACTLY THE SAME ON THE OTHER ARDUINO
int16_t blinks;
int16_t pause;
};
//give a name to the group of data
RECEIVE_DATA_STRUCTURE mydata;
//define slave i2c address
#define I2C_SLAVE_ADDRESS 9
void setup(){
Wire.begin(I2C_SLAVE_ADDRESS);
//start the library, pass in the data details and the name of the serial port. Can be Serial, Serial1, Serial2, etc.
ET.begin(details(mydata), &Wire);
//define handler function on receiving data
Wire.onReceive(receive);
pinMode(13, OUTPUT);
}
void loop() {
//check and see if a data packet has come in.
if(ET.receiveData()){
//this is how you access the variables. [name of the group].[variable name]
//since we have data, we will blink it out.
for(int i = mydata.blinks; i>0; i--){
digitalWrite(13, HIGH);
delay(mydata.pause * 100);
digitalWrite(13, LOW);
delay(mydata.pause * 100);
}
}
}
void receive(int numBytes)
here is the code for the master:
#include <Wire.h>
#include <EasyTransferI2C.h>
//create object
EasyTransferI2C ET;
struct SEND_DATA_STRUCTURE{
//put your variable definitions here for the data you want to send
//THIS MUST BE EXACTLY THE SAME ON THE OTHER ARDUINO
int16_t blinks;
int16_t pause;
};
//give a name to the group of data
SEND_DATA_STRUCTURE mydata;
//define slave i2c address
#define I2C_SLAVE_ADDRESS 9
void setup(){
Wire.begin();
//start the library, pass in the data details and the name of the serial port. Can be Serial, Serial1, Serial2, etc.
ET.begin(details(mydata), &Wire);
pinMode(13, OUTPUT);
randomSeed(analogRead(0));
}
void loop(){
//this is how you access the variables. [name of the group].[variable name]
mydata.blinks = random(5);
mydata.pause = random(5);
//send the data
ET.sendData(I2C_SLAVE_ADDRESS);
//Just for fun, we will blink it out too
for(int i = mydata.blinks; i>0; i--){
digitalWrite(13, HIGH);
delay(mydata.pause * 100);
digitalWrite(13, LOW);
delay(mydata.pause * 100);
}
delay(5000);
}