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Arif Rijal Fadhilah

→ Embedded Systems Engineer & IoT Developer

Firmware and hardware designed to agree. Specializing in microcontrollers, real-time control systems, and IoT architectures that hold up in the field.

// 00.719° S 100.342° E — PADANG, INDONESIA

Engineering Philosophy

I build firmware and hardware that hold up in the field, not just the lab. From PID-tuned incubator controls holding under 0.2°C variance to STM32 energy monitors running real-time power-factor math, I care about the milliseconds and millivolts most people never see.

Every system I ship is a circuit: firmware, hardware, and interface have to agree. I write code close to the metal — C/C++, Rust, and Python on ESP32 and STM32 — and build the MQTT backends and React dashboards that surface the signal from the noise.

Brilliant, smart, kind, and loving — that's the standard I hold myself to as an engineer and as a person.

// EDUCATION

Electronics Engineering

Padang State Polytechnic • 2024-present

State Vocational High School 1 Padang

2021-2024

// INTERESTS

  • Robotics & Automation
  • Open Source Hardware
  • Machine Learning at the Edge
Arif Rijal Fadhilah

Technical Skills

Embedded

PIN-01
ESP32 STM32 Arduino Raspberry Pi

Programming

PIN-02
C/C++ Python JavaScript Rust

Frontend

PIN-03
React Tailwind CSS HTML/CSS

Backend

PIN-04
Node.js Express MQTT

Database

PIN-05
MongoDB PostgreSQL InfluxDB

Eng. Tools

PIN-06
KiCad Altium SolidWorks

Cloud

PIN-07
AWS IoT Docker Linux

Featured Engineering

INC-01 Smart baby incubator prototype with PID control display

Smart Baby Incubator with PID Control

Developed a high-precision temperature regulation system for neonatal care. Implemented advanced PID algorithms on an ESP32 to maintain constant thermal environments with less than 0.2°C variance.

C++PID
MON-02 IoT monitoring dashboard with real-time data visualization

ESP32 IoT Monitoring Dashboard

Full-stack IoT solution. Engineered the firmware for distributed ESP32 sensor nodes communicating via MQTT, and built a real-time React dashboard to visualize environmental metrics and manage device states.

ESP32MQTT
PWR-03 Custom PCB designed for energy monitoring system

Smart Energy Monitoring System

Designed custom PCB architecture using KiCad for a multi-channel AC/DC energy monitor. An STM32 handles high-speed ADC sampling and power-factor calculations, feeding real-time analytics that cut industrial power waste.

STM32KiCad

IoT Dashboard PCB

// DRAG TO ROTATE
LOADING 3D MODEL…

Experience

IoT Developer

Freelancer • 2020 - present

  • Built cloud-connected monitoring systems that stream sensor telemetry over MQTT to live dashboards.
  • Wired and integrated sensors over I2C, SPI, and UART — from temperature probes to motion and environmental modules.
  • Shipped React dashboards visualizing real-time device states and environmental metrics.

Internship

PT. Sat Nusapersada Tbk • Jan 2023 - June 2023

  • Assisted firmware bring-up and functional testing of production IoT devices.
  • Worked across hardware, firmware, and QA teams to lock down product requirements before handoff.
  • Wrote technical specifications and end-user guides that cleared documentation for manufacturing.

Github Ball

Drag, flick, and explore my active repositories. Tap a module for details.

Contact Protocol

Direct channels for collaboration and inquiries.