Browse categories
Explore
Fiverr Pro
English
$
USD
I will design esp32, arduino, iot firmware and microcontroller projects
United States
I speak English, German, French, Italian, Danish, Lithuanian, Turkish, Spanish
7 orders completed
Professional PCB Designer, KiCad, Altium, EasyEDA, Circuit and Schematic Expert
Hi, I’m Williams Wai, a PCB designer and electronics engineer with experience in PCB layout, circuit and schematic design, embedded systems, and IoT hardware. I’ve worked on Arduino, ESP32, STM32, and...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
Highly Responsive
Known for exceptionally quick replies
About this Gig
Are you looking for a reliable ESP32, Arduino, or IoT developer to bring your idea to life?
You are in the right place.
I specialize in firmware development, microcontroller programming, and IoT solutions, helping you turn your concept into a fully working system or prototype.
Whether its a small firmware task or a complete IoT product, I will deliver clean, efficient, and well-structured code.
My Service Include:
- ESP32 & Arduino firmware development
- WiFi and BLE (Bluetooth Low Energy) projects
- IoT systems with MQTT, APIs, or cloud integration
- Sensor integration (temperature, GPS, motion, etc.)
- Microcontroller programming and debugging
- PCB design support and circuit guidance
- Hardware prototyping assistance
Why choose me:
- Clean and optimized firmware code
- Fast communication and delivery
- Real-world hardware experience
- Scalable and reliable solutions
- Full support during development
I can help you build:
- Smart home devices
- IoT automation systems
- Wireless sensor networks
- Bluetooth control systems
- Custom microcontroller projects
Please contact me before ordering to discuss your project requirements so I can provide the best solution for you.
My Portfolio
Other Electronics Engineering Services I Offer
FAQ
What platforms do you work with?
I work with ESP32, Arduino, STM32, and other microcontrollers for IoT and firmware projects.
Can you develop complete IoT systems?
Yes, I can build full IoT solutions including firmware, WiFi/BLE connectivity, and API or cloud integration.
Do you fix or debug existing code?
Yes, I can troubleshoot, fix bugs, and optimize your ESP32 or Arduino firmware.
Do you provide hardware or only software?
I mainly provide firmware and programming, but I also guide you on hardware, circuits, and PCB design.
Can you integrate sensors and modules?
Yes, I can integrate sensors like GPS, temperature, motion, and other modules into your project.
Do you support Bluetooth and WiFi projects?
Yes, I work with BLE (Bluetooth Low Energy), classic Bluetooth, and WiFi-based IoT systems.
