line follower robot fritzing circuit using l298n

I'm quite new to Arduino and thanks in advance for your help. Sorry for my bad English if there is any mistake. Right_Speed = constrain(Right_Speed, 0, 255) Left_Speed = constrain (Left_Speed, 0, 255) define new speed limitation for the engine PID_value = (Kp * P) + (Ki * I) + (Kd * D) use analogwrite to run motor at adjusted speed Black line follower robot that is capable of stopping in front of an obstacle or reaching the end of the route. reading the sensor if HIGH (Black line) or LOW (White line) line #define ENA 10 // Enable pin PWM of the Right motor #define ENB 5 // Enable pin PWM of the Left motor When i used a multimeter to measure the voltage, I found out that there was no voltage from the L298N to both motors. The sensors somehow could only detect the distance between it and the ground when i lift the robot above the ground.

I uploaded the code successfully but my robot didn't do anything: My robot uses an Arduino Uno board, a L298N motor, 1 9V battery, 2 motors, 5 TCRT 5000 infrared light sensors to detect a black line on a white surface. I'm currently making a line following robot using PID control.

Line follower robot fritzing circuit using l298n