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Roland Pelayo

Roland Pelayo started TMM in 2015. He is a firmware engineer who has over ten years of experience in developing electronic and microcontroller-based systems. Roland's designs include medical devices, security and automation, robots, emergency alert systems, and educational training modules.   Have something that you like Roland to write about here? or do you need consultation for microcontroller firmware projects? just contact him via the contact page.

How to Measure Performance on Your Linux VPS Server

A virtual private server with Linux operating system is one of the most profitable solutions for the development of e-commerce, other types of business, and private tasks (source). Sometimes the client needs to know the technical parameters of the system in order to plan development strategies. If there are doubts …

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How To Build A Storyboard Online

storyboard-creator-online

A storyboard is a visual plan created to help understand what will happen in a film, TV show, or theater play. It allows you to view how a project will flow over time and how individual scenes will be structured. Storyboards are used by directors, producers, and production designers to …

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The Ultimate Guide to Wireless Network Adapters

A wireless network adapter is a small piece of hardware that allows you to connect your computer to a wireless network. They’re an important part of a computer’s internal hardware but can also be hard to understand. This guide will show you what they are, how they work, and what …

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STM32F1 Serial Port and printf()

STM32F1 serial output

Needless to say, a serial output is a necessary tool in debugging embedded system applications. Placing the right messages in the right place will help you save hours in figuring out what went wrong in your code. Arduino programmers are very familiar with Serial. print() and its derivatives. But how can …

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Designing a PCB for the RP2040 Microcontroller

Using the Raspberry Pi Pico is convenient, but as you level up your project, you’ll find that it is much better to create your own PCB that satisfies your design requirements. If you have designed PCB boards for STM32 microcontrollers before, then you’ll find that it is not much different …

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Using Rotary Encoders with Arduino

incremental rotary encoder

There exists a sensor for almost all physical parameters. Temperature? Pressure? Weight? Gas Concentration? We’ve written a tutorial for them all on this site. This time, we will try to build a device that measures rotational position. The same device can measure rotational speed too. Of course, we’re talking about the …

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Raspberry Pi Pico Pinout

Raspberry Pi Pico Pinout

The Raspberry Pi Pico is a microcontroller development board built by the same makers of the Raspberry Pi. As seen in the Raspberry Pi Pico pinout diagram below, it has 40 GPIO pins with 3 analog inputs. It features the RP2040, a 32-bit dual ARM cortex M0+ microcontroller chip with …

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Using an E-ink Display with Arduino

e-ink display front

Ever wondered why e-book readers don’t use LCDs, OLEDs, or TFT displays? This is because, with the same usage, e-paper or e-ink displays consume 0.008% power compared to a TFT display. In this article, I’ll be featuring an e-ink display that can be readily used with Arduino and other microcontrollers.

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