All Tutorials

Hi again and welcome back! In this tutorial, I will provide more detailed information about the PIC10F200 microcontroller so you understand exactly what we’re doing and why. ...

While the microcontroller is the brains of a project, there are a lot of other things required for a functional circuit. So, let’s first figure out what we will need to develop ...

These microcontroller tutorials come from the idea of making some cool things using the most simple and primitive microcontroller possible. So, if you want to learn about ...

The last time we discussed diodes, we learned about its basic structure and how forward biasing allows current through the pn junction. This time, we are going to discuss about ...

Have you ever asked yourself how this small electronic device, an LED, emits light? Compared to the much less efficient incandescent light bulb, which produces light by ...

In our discussion about how an RGB LED works, we’ve mentioned that an RGB LED is basically an LED package with three internal LEDs (red, green, and blue) inside it. In order to ...

While LEDs may be everywhere now, that obviously wasn't always the case. So how did we go from no LEDs to LEDs in nearly everything on the planet? As we researched it, we were ...

We took apart two LED lightbulbs, a CREE LED bulb from 2014 and a Philips bulb from 2018, and compared their build quality, the electronics, and their overall design. It was ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

Dimming is the process of varying the light output of a light source. This is done to set the ambience or to save energy when full light output is not really needed. Most of ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

In our discussion with the pn junction, we mentioned that the pn junction is the basis for diodes. Diodes are one of the most widely used devices in electronics and they have ...

We've discussed a lot about LEDs like how it works in a semiconductor level, its pros and cons, and how an individual LED can be dimmed through constant current reduction (CCR) ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

Why do we need a resistor for an LED? Once you pass the forward voltage, a slight increase in voltage makes a huge increase in current. You don’t wanna blow things up!