Bluetooth(HC-05) communication with two arduino uno

Projects Programming
1

how to communication with two arduino uno by using HC-05

i want to press the button and send the data over the door by using bluetooth(HC-05), but i have searched some information in the internet.
i want to ask how to match these two Bluetooth and can Bluetooth transmit and receive in the same time?

Thanks.

setting: arduino uno *2
8x8 LED with MAX7219 *5
button *5
buzzer *1

2

but i have searched some information in the internet.

What have you searched, and what did you learn from it?

i want to ask how to match these two Bluetooth

They should auto pair when they are within a 30 ft distance of each other.

and can Bluetooth transmit and receive in the same time?

It may look like they can send and receive data at the same time, but that's because the arduino can process the data faster then we can see it. in actuality, they don't, the arduino can only do one thing at a time.