I want to make a vaccum cleaner from l293d (motor driver) with PC fan.
I want to know that how can I on/off pc fab using bluetooth module hc-05.
Please suggest me the way with the code.
Thanks in advance. 
Hello
Here is my pseudo code to start the coding in C++.
digitalWrite(PCfan,bluetoothRx?HIGH:LOW);
Can you please provide me the full code for Arduino R3 with l293d which can be on|off with bluethooth module Hc-05
For on/off you could use a simple relay to control the fan.
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Forget it. Air moving using fans like that will fail. Cooling fans don't handle pressure. Any little resistans and they stall.
Sorry
Can you please tell me that can i run pc fab with l293d or not
The old, from stone age, driver L293d, uses Darlington transistor stages that waist voltage, some 2 - 3 volts, get warm....
Use modern MOSFET based drivers.
What is "pc fab"?
No.
To make a vacuum cleaner with a fan, just use a battery and a toggle switch.
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