slow Bluetooth

[ammaralroz]

Dear All
I have Bluetooth module connected to PIC16f628A with internal clock 4Mhz using flow code (demo)
when I send command 'a' to turn the led on; it takes 7 seconds
and off also takes 7 seconds
even I write a short program as you can see below . it works really fast on "Flowcode simulation". but on the real microcontroller it is slow
anyone know why?

flowcode.png

(25.22 KiB) Downloaded 1320 times

[Benj]

Hello,

The string receive function waits for "\n\r" or "\r\n" carriage return and line feed otherwise it has a timeout feature. My guess is that it is the timeout that is causing the long delay.

You could instead use the Read_Byte function and this will return the value 255 if there is no data or it will return the data byte directly without waiting.

[ammaralroz]

Thank you Benj for your fast response
yes I did my test and discover that the slow comes from "StringReceive" function
i tried "\n\r" or "\r\n" but it didn't work
any ideas?

flowcode.png

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[Benj]

Hello,

Please can you post your program and I will see if I can make it run faster for you.

[ammaralroz]

Hi
In attached as requested
Thank you

Ex1_v6.fcfx

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[ammaralroz]

Dear All.
Still no one have any solution?

[Benj]

Hello,

I have replaced the Bluetooth component with the RS232 component which provides you some better functions for low level communications.

Have a go with this and it should be much better.

Ex1_v6_mod.fcfx

(7.62 KiB) Downloaded 340 times

[paridhi]

I am making a program to send text messages from my mobile through bluetooth Hc 05 to control operations by ECIO 40P. Though I was able to send strings to and fro, the speed is really slow. It takes 6-7 secs to go though. Can you suggest a way to make it faster without using RS232? Is there an internal delay in the macro of "send command"?