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Roland Pelayo

I started TMM back in 2015. I’m a firmware and embedded systems engineer with over ten years of experience designing and developing electronic and microcontroller-based products. Over the years, I’ve worked on a wide range of projects, including medical devices, access control and security systems, automation, robotics, wireless communication modules, IoT systems, imaging and sensor instruments, and educational training tools. I’ve built systems using platforms such as PIC, AVR, ESP32, STM32, nRF52, and Raspberry Pi, and I regularly work with protocols like RS485/OSDP, CAN, TCP/IP, Wiegand, and a variety of sensor and communication interfaces. I also develop full-stack solutions for embedded projects, combining firmware, hardware, and web-based dashboards when needed. If there’s a topic you’d like me to write about, or if you need consultation or hands-on development for electronics, embedded, or firmware projects, I’m always open to working on new ideas and collaborations. You can reach me anytime through the contact page.

ESP32 Pinout Diagram | ESP32-WROVER

The ESP32 has become one of the most popular microcontrollers in the maker and IoT community thanks to its power, versatility, and built-in Wi-Fi and Bluetooth features. Among its many modules, the ESP32-WROVER stands out because of its extended memory and performance, making it ideal for demanding projects like data …

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ESP32 Board Guide for Beginners

ESP32 boards according to processing power

If you’ve just started tinkering with ESP32 microcontrollers, you’ve probably noticed there isn’t just one “ESP32 board” — there are many, each with its own quirks and strengths. Some are built for general prototyping, others come with cameras or extra memory, while newer ones focus on AI, USB gadgets, or …

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Top-Notch Refrigerator Repair Services in Seattle

Seattle residents depend on their refrigerators more than they often think. Whether it’s protecting groceries from spoiling, keeping medicines at proper temperatures, or ensuring everyday convenience, a faulty fridge can disrupt daily life. Below are key considerations, challenges, and advice to help you find the best refrigerator repair services in …

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Memory Management in Embedded Systems: What Beginners Need to Know

When programming for embedded systems, especially using microcontrollers like the Arduino, ESP32, or STM32, managing memory efficiently becomes critical. Limited RAM and storage space require thoughtful strategies to avoid issues like crashes, unexpected behavior, and even hardware damage in extreme scenarios. In this beginner-friendly guide, we'll explore: What memory management …

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