Hi everybody!
I'm new in electronics, so my questions can be strange but I have to ask.
I need to continuously send information from sensor to smartphone via Bluetooth.
1. I heard that if I take HC-05 BT module, then I can do without microcontroller. Is it true? If yes, tell me how to send the information without it. If no, which microcontroller would you recommend? It would be great if it is small and not expensive.
2. Can I receive this information and dispose it in app written in MIT App Inventor 2?
3. Can I turn on and off the sensor remotely? How to do it, if it's possible?
Thanks in advance)

 

1. The module has a serial port that allows it to communicate with other "intelligent" devices; them being either a microcontroller or an intelligent sensor. As for a recommended microcontroller, you will get many suggestions around here - I am very familiar with MSP430 devices, and one of my go to models is the MSP430G2553.
2. Unfortunately I never used this software.
3. If you have a microcontroller, all it takes to implement this is to create a simple protocol that informs the microcontroller to turn on and off the sensors attached to its ports.

 

1. The module has a serial port that allows it to communicate with other "intelligent" devices; them being either a microcontroller or an intelligent sensor. As for a recommended microcontroller, you will get many suggestions around here - I am very familiar with MSP430 devices, and one of my go to models is the MSP430G2553.
2. Unfortunately I never used this software.
3. If you have a microcontroller, all it takes to implement this is to create a simple protocol that informs the microcontroller to turn on and off the sensors attached to its ports.

Thank you very much!