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Roland Pelayo

Roland is the brains of Teach Me Microcontrollers. He is a firmware engineer who have ten years (and counting) 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. Besides writing for TMM, he currently heads the Electronics Engineering Program of Holy Cross College in Davao City. He was also once a technical editor of All About Circuits and Maker.Pro Roland is open to consultation or microcontroller firmware projects: just contact him via the contact page.

Introduction to Raspberry Pi HATs

A Raspberry Pi HAT is a circuit board placed on top of a Raspberry Pi in order additional features to the single-board computer. There are a lot of Raspberry Pi Hat available for purchase. This post will show you how to build your own Hat.

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Making Your Own ESP8266 Board

The emergence of the ESP8266 WiFi module has allowed makers and enthusiasts to create Internet-enabled projects at a minimal cost. Moreover, the popularity of the module also gave rise to commercial boards like the NodeMCU, WeMos D1, Adafruit’s Huzzah. Sparkfun’s ESP8266 Thing and many others. Practicality would make you just …

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Understanding PCB Via

PCB Via

Vias are very common when designing PCBs. I myself have used PCB via even before fully understanding them. In this article, I will be sharing the different types of vias and how they are actually used in PCB design.

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Uploading Gerber Files for PCB Production

In the past, I used to build project prototypes through breadboards and perfboards. However, the emergence of affordable PCB manufactures have allowed me to go away from my old ways of prototyping. In this article, I will share how I created the PCB board for my SIMPic development board through …

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SIMPic - Development Board for PIC16F877A

PIC16F7877A prototype board

I always believed that the Arduino is a development board and is its microcontroller, the ATMega328 is the one meant to be featured in actual embedded systems projects.  Nevertheless, no one can deny the advantages of boards like these as they make prototyping and debugging much easier. In this post, …

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Capture and Compare with PIC16F877A

PIC16F7877A prototype board

The PIC16F877A microcontroller comes with a Capture Compare PWM (CCP) module which utilizes its 16-bit Timer1 module to generate or count pulses, among other things. I have already covered how to generate PWM in my previous tutorial. This time, we will look at how to implement capture and compare with …

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