03011nam a22003497a 4500003000400000005001700004008004100021040003500062050002500097100003500122245019500157260006200352300002500414336001500439337001300454338001500467500002200482502016100504504004900665520149100714650003902205650002402244650001802268650002002286700003802306700003402344700003102378700002802409942002002437952018702457999001702644OSt20260504142925.0260504b        |||||||| |||| 00| 0 eng d  aTUPMbEnglishcTUPMdTUPMerda  aBTH TK 870bC37 2025  aCAPISTRANO, LAWRENZ A.eAUTHOR  aDevelopment of automatic solar powered scarecrow with rat repellant machine/cLawrence A. Capistrano, Ehler John D. Macatangay, Luis Jr. D. Mangampo, Ronnie R. Panoted, and Grace C. Ratio.--  aMANILAbTECHNOLOGICAL UNIVERSITY OF THE PHILIPPINESc2025  ax, 107 pages:c29 cm  2rdacontent  2rdamedia  2rdacarrier  aBachelor's Thesis  aCollege of Industrial Technology.--bBachelor of Technology major in Electronics Engineering Technology:cTechnological University of the Philippines,d2025  aIncludes bibliographic references and index.  aWhile scarecrows are commonly used to deter birds and animals from crops, they are static
and ineffective in responding to changing conditions. Farmers typically place scarecrows
in fields to ward off pests, but these devices do not react when birds or animals approach.
This study, titled "Development of Automatic Solar-Powered Scarecrow with Rat Repellent
Machine," aimed to enhance crop protection by addressing the limitations of traditional
scarecrows. This project introduces an innovative approach by incorporating modern
technology into the scarecrow design. A Passive Infrared (PIR) sensor is used to detect the
presence of birds and animals, triggering the scarecrow to activate mechanical motions
such as moving its arms up and down. In addition, a horn alarm is sounded to further scare

off pests. The system is powered by solar energy, making it both sustainable and cost-
effective. This combination of motion detection, movement, and sound significantly

increases the effectiveness of the scarecrow while conserving energy. By incorporating
these features, this automatic, solar-powered scarecrow offers an efficient and eco-friendly
solution to protect crops from pests, improving overall agricultural productivity and
reducing reliance on chemical deterrents.
Keywords: automatic scarecrow, solar-powered, crop protection, PIR sensor, pest control,

rat repellent, agricultural productivity, motion detection, sustainable technology, eco-
friendly, scarecrow design.  aElectronics Engineering Technology  aAutomatic Scarecrow  asolar-powered  acrop protection  aMacatangay, Ehler John D.eAuthor  aMangampo, Luis Jr. D.eAuthor  aPanotes, Ronnie R.eAuthor  aRatio, Grace C.eAuthor  2lcccBTH CITn0  00102lcc4070aTUPbTUPcBachelor's Thesis CIT-2Fd2026-05-04eDonation iBTH-6785l0oBTH TK 870 C37 2025pBTH0006785r2026-05-04tc.1 w2026-05-04yBTH CITzFor library use only   c31414d31413