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English
$
USD
I will develop esp32 and arduino firmware for your iot project
Electronics Engineer for ESP32, Modbus, Websites, Excel and Python
I am an electrical and electronics engineer. I help companies and startups with software work delivered digitally:
- ESP32/Arduino firmware, Modbus RS-485 and MQTT integration
- Modern, mobile-friendl...
About this Gig
Do you have an ESP32 or Arduino board and need firmware that actually works? I write clean, commented firmware that you can extend later.
What I can do:
- Read sensors: temperature, humidity, pressure, level, current, digital inputs
- - Control relays and outputs with safe startup states
- - Wi-Fi connection and a setup page (change the network without re-flashing)
- - Send data to MQTT and receive remote commands
- - Simple web dashboard with live values
- - Reconnect logic, watchdog and error logging for stable operation
You receive: PlatformIO or Arduino IDE project files, a wiring diagram and a test guide for your board. Code is compiled and checked before delivery. If something behaves unexpectedly on your board, I fix it within your revisions.
Not included: shipping hardware, PCB design, mobile apps, school assignments, electric utility/energy distribution work.
Please message me before ordering with your board model, sensors and what the device should do.
Platform:
ESP32
Sensors:
Temperature
•
Humidity
•
Voltage detection
•
Pressure
Expertise:
Firmware development
•
Microcontrollers
•
IoT
FAQ
Do you ship hardware?
No. I deliver source code, a wiring diagram and documentation digitally. If you get stuck during setup, I help you through Fiverr messages.
Can I use my own MQTT broker?
Yes, if it supports standard MQTT. Please do not send passwords in messages; you enter them yourself in the setup page.
Will it run forever without problems?
I add watchdog and reconnect logic for stable operation, but real reliability also depends on your power supply, Wi-Fi quality and hardware. I will not promise it never stops.
