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Roland Pelayo

Roland Pelayo started Teach Me Microcontrollers 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.   These days, TMM has become a way for Roland to share the knowledge he gained from his past projects. He currently works as a Senior Embedded Engineer for an international company that develops professional audio products. In the past, he used to manage a team that develops firmware and software for industrial cabinets and drawers. He also had experience in the academe, as the head of the Electronics Engineering Program at a college in his hometown. He was also once a technical editor of All About Circuits and Maker.Pro. 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.

Why is my MOSFET Heating Up?

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Generating Sine, Triangular, and Sawtooth Waveforms using STM32F4 DAC

STM32F4 Waveform Generation using DAC

The STM32F4 microcontroller series is popular in embedded systems applications due to its powerful features. One of its key peripherals is the Digital-to-Analog Converter (DAC), which enables the generation of analog waveforms. In this article, I will show you how to generate sine, triangular, and sawtooth waveforms using the STM32F4 …

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Guide on How to DJ With A Laptop: 3 Easy Steps

Becoming a DJ is easier than ever before as you do not require an expensive desk, an entire PA system, or a bundle of CDs. Today, having a good laptop, Bluetooth headphones, a USB, and a mixer are all you need to get started. 

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Using an NPK Sensor with Arduino

arduino NPK sensor wiring diagram

We’ve featured in a previous project how we can make a “plant” send messages when it needs more water. Of course, healthy plants don’t only need water; the soil in which they are planted must also be abundant in a number of chemicals. Is there a sensor that does this?

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5 Best Apps to Make Internet Calls in 2023

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