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All Journal Technology and Informatics Insight Journal
Rizal Agri Wahyuadi
Sekolah Tinggi Teknik Pati
Computer Science & IT

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Analisis Komparatif Protokol I2C, UART, dan SPI pada Sistem Mikrokontroler Berbasis Tinkercad Muh. Alaika Sulthonnudin; Muhammad Atiq; Raka Dian Mahardi; Rizal Agri Wahyuadi; Danang Hendrawan
Technology and Informatics Insight Journal Vol. 5 No. 2 (2026): TIIJ
Publisher : LP3M Universitas Putra Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32639/e8sh3t14

Abstract

The selection of a serial communication protocol affects pin efficiency, connection topology, and data-exchange behavior in embedded systems. This study compares I2C, UART, and SPI through a Tinkercad-based simulation experiment using two Arduino Uno boards as Master and Slave. Three scenarios were evaluated: I2C with a temperature sensor, UART with a PIR sensor, and SPI with a photoresistor. Data were observed through the Serial Monitor and Slave-side LED responses. All observed functional scenarios consistently transferred the intended sensor status. I2C provided efficient wiring through SDA and SCL, UART offered a simple point-to-point configuration at 9600 bps, while SPI required more signal lines for synchronous communication. The findings indicate that protocol selection should consider topology, pin availability, and application requirements. Hardware experiments are still required to quantify latency, throughput, and transmission errors.
Co-Authors Danang Hendrawan Muh. Alaika Sulthonnudin Muhammad Atiq Raka Dian Mahardi