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I will design an esp32 iot system with mqtt, sensors, and technical documentation
About this Gig
Looking for a complete ESP32 IoT solution not just code, but a well-engineered system designed to actually work?
I'm a professional IoT engineer specializing in hardware design and embedded systems. I've built real-world systems including energy monitoring with ThingsBoard, relay-based door locks using M5Tough, and custom PCB hardware for industrial display and QC applications.
What I deliver:
ESP32 firmware (Arduino framework or ESP-IDF) tailored to your needs
Complete wiring diagram for your system
MQTT integration with your broker of choice (HiveMQ, Mosquitto, ThingsBoard, etc.)
Sensor & actuator integration: temperature, humidity, motion, gas, ultrasonic, relay, buzzer, and more
Technical documentation explaining how the system works
Clean, readable, commented code
My approach:
I design systems the way I would at work starting from your requirements, selecting the right components, and delivering something that works as a complete system, not just loose code and wires.
Important: Please message me first to describe your project before ordering. This ensures I can deliver exactly what you need within scope.
Other Electronics Engineering Services I Offer
FAQ
Will you test the code on real hardware?
The firmware is validated through code logic and serial output simulation. Physical hardware testing is on the buyer's side, as I don't have access to every sensor combination. The code is clean, well-structured, and based on well-documented libraries.
What actuators can you integrate?
I can integrate relays, buzzers, servo motors, and simple on/off outputs. For less common actuators like stepper motors or addressable LED strips, please message me first so we can discuss feasibility before ordering.
Do you only work with ESP32?
My primary platform is ESP32 (Arduino framework or ESP-IDF). I can accommodate Arduino Uno/Nano, but recommend ESP32 for anything involving WiFi or MQTT connectivity.
What connectivity protocols do you support?
I currently specialize in WiFi with MQTT. If you need HTTP API or other protocols, please message me first so we can discuss feasibility.
Can you include power management in the system?
For systems needing voltage regulation, I can incorporate power management into the wiring design. For custom buck/boost converter design, check the Custom Power Circuit extra service, or my PCB design gig for fully integrated solutions.
What files will I receive?
You'll receive the source code file (.ino or .cpp), a wiring diagram (PDF or image), and a documentation PDF depending on your package.
I don't know which package to choose. What should I do?
Message me and describe your project — what the system should do, how many sensors or actuators are involved, and whether you need cloud connectivity. I'll recommend the right package for your needs.
