This work proposed to design anti-collision car system that could predict the collision using fuzzy logic, controlled by PIC16F877A with pulse width modulation (PWM) technique. The ultrasonic sensor and humidity sensor are used to measure the distance and detect the relative humidity (RH) of the road condition. PWM duty ratio of a moving and stop condition of the vehicle are indicated with a value of > 70% and < 40%, respectively. For a dangerous situation, the DC motor is turned off and the LED display is turned on as a warning to the driver.