Zgbee and Bluetooth with Arduino

Projects Programming
1

Hi,
I am working on with interfacing of bluetooth and zigbee to arduino,
but I am not able to access Tx Rx of both (zigbee and bluetooth) at a time,

if I am writing

void setup()
{
bluetooth.begin(9600);
zigbee.begin(9600);

}

in void loop only zigbee code is working.

Can you help me that how can Tx Rx of both can work at a time.

2

Can you help me that how can Tx Rx of both can work at a time.

Without knowing what bluetooth and zigbee are instances of? No.

If they are both instances of SoftwareSerial, the answer is simple. You can't.

3

Hi Paul,

yes both are instance of SoftwareSerial,

#include <SoftwareSerial.h>
SoftwareSerial bluetooth(2,3);
SoftwareSerial zigbee(4,5);

void setup()
{
bluetooth.begin(9600);
zigbee.begin(9600);
}

is there any alternate solution for this, if I want to interface bluetooth, zigbee and wifi with Arduino?

4

is there any alternate solution for this, if I want to interface bluetooth, zigbee and wifi with Arduino?

Yep. Get a Mega.

5

thanks for your quick reply,

Do Arduino Mega will surely solve this problem?
May I know what is the problem (technically) in Arduino Uno?

6

Do Arduino Mega will surely solve this problem?

I know that the Mega has 4 hardware serial ports, so it can talk to 4 serial devices at the same time.

May I know what is the problem (technically) in Arduino Uno?

Only one instance of SoftwareSerial can be listening at a time, due to the fact that it uses pin change interrupts. So, when a pin changes state, an interrupt is triggered and the SoftwareSerial instance that is listening gets a method called. There is no way to ask each instance if it is interested in knowing that a pin has changed state, because the changes happen too fast to poll each instance to see if it cares (yes, that is my pin, so I care; no, that isn't my pin, so I don't care).

7

Thanks Paul,