Using Your Soldering Iron In Another Country
Have you ever considered bringing your soldering iron on vacation?
I am in Mexico at the moment and of course I have my soldering iron in my suitcase. But here the other day I got myself a surprise that I never considered could be a problem.
I have an old ERSA-30 soldering iron that I inherited from my dad. It’s designed for the European 220V wall plug. Therefore I used an adapter to make it fit the Mexican wall plug. It’s not a converter, just a simple mechanical adapter that lets me plug my European plugs into the Mexican plugs.
I wanted to solder some stuff, so I plugged it in and waited…
What is a Field Effect Transistor?
Example of a Field Effect Transistor
The Field Effect Transistor (FET) is a device where you can use one electrical signal to control another. The name ‘transistor’ comes from transfer resistor, which tells you how the device works.
Build-Electronic-Circuits.com Featured On EEWeb
Today EEWeb.com featured build-electronic-circuits.com as the “Engineering Site of the Day”.
EEWeb is a big website with lots of resources for electronics engineers, so I am honored to be featured as their site of the day =)
Check it out:
I have put a lot of effort in to build-electronic-circuits.com, so being recognized like this makes me really happy =)
Arduino Remote Control Tutorial
In this tutorial we will make an Arduino remote control. It can be used to copy any remote control.
A remote control sends out an infrared (IR) code when a button is pushed. This IR code is received by the gadget we are controlling. To make our own Arduino remote control, we need to copy the IR code that is sent.
To create our remote control we need to:
- Get button-code from original remote
- Make a remote-control program
- Upload our program to the Arduino
We will use these components for our Arduino project:
- IR Receiver TSOP31238
- IR Diode
- 100 Ohm Resistor
Make A Plastic Project Box
A plastic project box is nice to have to make your project look better. This has always been one of my weaknesses. I can make a really advanced circuit, but when it comes to package it, I have some kind of disability.
Luckily there are some tools out there for people like me.
Here are three methods of making a plastic project box for you circuit:
- 3D Printing
- Laser Cutting
- Modify Standard Boxes
USB Circuit Development Made Easy
Using a USB circuit is the most common method for communicating between devices and computers.
In the old days usually people used the parallel port or the serial port. But these ports are becoming more and more rare. And on laptops they are almost non-existent.
But all computers have USB ports.
Yeah, and USB stands for Universal Serial Bus just in case you didn’t know
LDR Circuit Diagram
This LDR circuit diagram shows how you can make a light/dark detector.
An LDR or “Light Dependent Resistor” is a resistor where the resistance decreases with the strength of the light.
Free Circuit Drawing Software: SchemeIt
Recently I have been using this free circuit drawing software from Digikey. It’s called SchemeIt.
If you need a simple and fast way to draw a schematic diagram, it’s the best. It’s browser-based so you don’t have to download anything.
You don’t have to register. But if you want you can register and save your designs.
What Is A Resistor And What Does It Do?
“What is a resistor?” she asked.
“It’s a component that resists the flow of current” I said.
“Hmm.. I don’t get it. What does it do to my circuit?” she asked.
“Well, it doesn’t actually do anything actively” I said.
PCB Design Rules
When you design a circuit board, you need to follow the PCB design rules of your manufacturer. These rules are the limits of the machine that makes the circuit boards.
The first time I looked at the rules I got really bummed out because it seemed so freakin’ complicated.
“Why can’t they just make my PCB???”
After a while I calmed down and had a look at what I was up against. And it wasn’t that bad after all