LDR(wave length) , gas sensor(MQ-7),two servo motor,pic16f877A

[tiktak]

hellow... who can help me?.... i want to build system using last elements(in title).. system apply in any room of ahouse as following:
LDR for sunlight .
MQ-7 for gas sensing.
motor1 for curtain shading.(deal with LDR)
motor2 for window openning.(deal with MQ-7)

IF LDR =false AND MQ-7=false THEN two servo motor=false
IF LDR =false AND MQ-7=true THEN motor2=true and motor1=false
IF LDR =true AND MQ-7=false THEN motor1=true and motor2=false
IF LDR =true AND MQ-7=true THEN motor2=true and motor1=false

please any help in hardware (using protus semulation) , software (micro basic or microC)
thanks a lot

 

[sadan]

I had used Servo motor for last two years. Got it from mmy Epson Dot Matrix printer ( 4 pin ) and Western Digital Hard Drive ( 3 Pin )

I burn my ICs as I did not care for Back EMF, the magnetic flex generated inside the motors.
I learnt to use Diode ( rectifier ) protection on each pin before connecting with IC.

Do you still need Proteus Design and simulation + some pictures.
Here are few I got from Web in various projects, they helped me in understanding

General

ULN 2003 based designs

Unipolar motors ?

Just for reference