Rancang Bangun Sistem Monitoring Suhu Multiprotokol Berbasis ESP32 dan Server Kolektor Asinkron

Muhammad Fairus Fawas Afanza (Universitas Narotama)
Moh. Noor Al Azam (Universitas Narotama)

Jurnal Sistem Informasi, Teknik Informatika, dan Sistem Komputer
Vol. 2 No. 3 (2026): Jurnal Sintika

This study aims to design and implement a robust multi-protocol temperature monitoring system combining modular ESP-IDF firmware and an asynchronous collector server. The system integrates an ESP32 microcontroller interfaced with a Bosch BMP280 temperature sensor and Texas Instruments INA226 digital power monitor over a shared 400 kHz I2C bus, supporting dynamic MQTT (QoS 0 and QoS 1) and RESTful HTTP POST transmission. The receiver architecture combines an asynchronous FastAPI server, Mosquitto MQTT subscriber, and SQLite database in Write-Ahead Logging mode with Pydantic validation. Functional testing confirmed successful hardware initialization, drift-free FreeRTOS task scheduling via xTaskDelayUntil, SNTP epoch synchronization, and structured JSON telemetry parsing. The implemented system demonstrated 100% data reception across 810 experimental test records, validating the modular firmware and dual-transport architecture for smart IoT telemetry applications.