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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.

Arduino Current Sensor Tutorial

arduino current sensor

Current sensors can have different applications: power supplies, over-current protection, and motor control to name a few. In this Arduino current sensor tutorial, we will look at how to read current using the ACS712 sensor.

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Send Sensor Data to ThingSpeak via ESP8266

Soil moisture sensor to ESP8266

In the previous tutorial, we set up a soil moisture sensor and have its data readable via WiFi. However, that data is only accessible if the NodeMCU ESP8266 and the client (smartphone, PC, etc.) is in the same network. In this tutorial, we will use a service that allows us …

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Featured: Seeeduino Nano

The Seeeduino Nano is Seeedstudio’s version of the new Arduino Nano. What can steer a maker towards this board instead of the original? We hope to answer that question in this featured article.

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Fast Printing PCB – Factors Make it Perfect

Sponsored Post by OurPCB Are you looking for a company that can provide you with the best Fast Print PCB products?   In this article, we will talk about Fast Printing PCB,help you make informed decisions and achieve the desired results. Among the key subjects on Fast Printing PCB include: What …

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Custom Circuit Board-The Guide to How to Design

Sponsored Post by WellPCB Every day, people depend heavily on electronic devices to get things done around the house and at their job places.  This friendly guide has all you need to know everything about a custom circuit board, and where you can get the best custom circuit boards for …

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AV Cable – The Ultimate Guide

Sponsored Post by Cloom Cloom, a reliable wire harness, and cable assemblies manufacturer, today published an “AV Cable – The Ultimate Guide You Need to Know.” It has four chapters that cover some useful terms about AV Cables knowledge.

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