A. Julisma M, Jamaluddin and Fatahillah 2023. Microcontroller Based Bird Pest Repellant Modifications Using A Pir Sensor. JURNAL PATANI: Pengembangan Teknologi Pertanian dan Informatika. 6, 2 (Sep. 2023), 22-25. DOI:https://doi.org/10.47767/patani.v6i2.544.