Hello,
I currently have an Arduino MKR1000. I also have an HC-05 Bluetooth module. I wired the two together, and the HC-05 is visible on my device.
I was also able to pass this test that another "Youtuber" has made (I suggest you watch the video at 2x speed): [u]How to check Healthiness of HC-05 Bluetooth module (Recommended for Experts only) - YouTube
This proves that the HC-05 is healthy, and that data is flowing through the RX and TX pins.
The problem is when I connect the HC-05 to the Arduino. When I send information the HC-05, like "49" to turn on an LED or "48" to turn it off, it doesn't work; the LED stays off. I send this data through an app that I made, which simply sends "48" or "49". The code in the Arduino corresponds these messages to turn the LED on or off.
There are no errors in the code, and I have gone through the code many times.
Here are the connections that I use:
HC-05 ------> Arduino
+5V ------> 5V
GND ------> GND
TX -------> RX(13)
RX -------> TX(14)