Hi guys This video for Chaser Circuit Interface with CD4017 using PIC16F877A. Please Subscribe and like my video. Have a nice day guys Software installation video link: https://www.youtube.com/watch?v=0n2br0Eb4dY&t=4s Led blink program video: https://www.youtube.com/watch?v=XaKoYmZLxTA&t=191s Circuit Diagram for Chaser Circuit : https://drive.google.com/file/d/12M_fCZE779uyKSWDIAL3Rvf_6MjGmA-V/view?usp=sharing Bar led interface with PIC16F877A part 1 in Tamil. https://www.youtube.com/watch?v=D_i9ZsRsM1g&t=12s Bar led interface with PIC16F877A part 2 in Tamil. https://www.youtube.com/watch?v=DDXdOznV7Es&t=343s