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Assembled an ESR component tester by yourself

In this article we will learn the way on how we assemble a tester component or people call it an ESR meter. They name it an ESR meter because the tool that we are going to assemble is able to display the value of ESR (equivalent series resistance) on a capacitor which is very important for a technician. Component tester or ESR meter that we are going to assemble here are made based on PCB component tester sold by duwiarsana.com. With the very small size of course the result will come up with a component tester or an ESR meter …

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How to read the frequency

A frequency, what is that? A frequency is the sum or the amount of vibration occurrences by something per second. We have learned the frequency since we were in elementary school. In my school, this subject was known as IPA (Ilmu Pengetauan Alam or sciece). We were taught about what the frequency was and its application. In this digital era, the use of frequency is very common encountered in communication system. This can be noticed by the use of its unit, Hz. For example, Wi-Fi frequency 2.4 GHz, digital tv that has many different frequencies, and even analog tv begin …

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How to Make a Big Seven Segment

Sevent segment, who doesn’t know this, for you who are hobby or maybe your job is in the field of electronics. For ordinary people, even though they don’t know that the name is actually a sevent segment, they have seen this thing. Usually known as number displayers, LED numbers, digital numbers, and so on. For me, when I saw the seven segment, I would imagine digital clock directly because I got in touch with everything about digital clock for almost a year when I was in vocational high school (SMK). At that time, the digital clock didn’t use a microcontroller …

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How to Solder a SMD Component

Soldering? Generally using what? Of course using a solder, the most common and many people using it. Actually, in fact there are several conditions that require us to use other type of solder to assembly electronic components. Just like laptop or hand phone mechanics that need other type of solder to help their job. That is a blower, there is also an infrared solder. This type of solder is required for servicing a laptop or hand phone, used for installing and uninstalling the BGA component, the component that its pad solder is at the bottom of the component, so that …

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Simple Futsal Scoreboard, How to Make it?

What is a scoreboard? Have you ever noticed a board that has glowing numbers that usually displays score or point in a game? Commonly we see this as a score board at football game, soccer, badminton, volleyball, etc. There are two type of score boards; manual and digital scoreboard. The manual one changes the number of score or point one by one as the players get new score. In digital one we just have to press a button then the numbers on the display will change as what we want. Well, now we will try to make a simple score …

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Creating Counter Up – Counter down Circuit

Hi everyone, in this article we are going to learn about how to build an electronic circuit that is able to count up and down displayed on a seven segment display. This kind of circuit is generally known as a counter up counter down or count up count down. Where do we need this counter up and counter down actually? Absolutely, this kind of circuit is very common used in our daily life. It just we didn’t realize that this circuit is everywhere around us and we often see it. Most often we see this is on the display of …

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How to Unlock The Padlock Combination Number

A padlock is commonly used for securing something. Some people used it to lock the door, gate, storage box and many more, these padlocks are just everywhere. The padlocks or some people just called it locks are usually made of strong heavy metal then mold with arched iron that have thick diameter. These will make the padlock strong and save to secure our precious things. Do you know if there are some padlocks that are looked so strong from the outside but easily to be broken even using a simple tool. You can see in some film that the actors …

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Build a ticketing machine by Arduino

Creating queuing ticketing machine. What is a ticket? Yup, a ticket, I call it a ticket. It was a paper that we took or given usually used for parking, queuing to see a doctor, watching film and many others. For example, in a big shopping mall, the parking ticket is commonly given once we enter the mall. We ppressed the button on a machine box next to the portal gate then the ticket came out from that box. The paper was printed by a small printer inside the portal gate box. Have you ever been queuing in a bank? Usually …

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Arduino Parking Sensor With Mp3 Sound

Hi everyone, it has been long time since I played around with Mp3 Shield module from duwiarsana.com. It was a module used to play an Mp3 sound file which could be controlled with a microcontroller such as arduino. From the past project, I created the arduino project using duwiarsana.com MP3 shield and it worked very well. A simple queuing system that able to call out the queue number similar to the number displayed on the LED matrix. I used algorithm to change the integer number saved in a cross-section variable so it could be called out the number as “inwords” …

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Turn On Lamp by Arduino, Bluetooth and Android Phone

After long time of making its application for android mobile phone, finally the video on how to use it could be produce. This is a device that can be used or installed at your house to replace the function of an electric switch which enables you to turn on your electric devices from a long distance using an android mobile phone. Other than home installation, the device is usually ordered to be installed on a vehicle as I did on my motorbike and car. The installation on a motorbike is usually used for turning on the machine in a motorbike …

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Build a Simple Styrofoam Cutting Machine

Styrofoam is usually used as daily food containers, securing an object of a direct collision, also used as an advertising tool. Styrofoam often used because it is easy to be formed into a variety of shapes. Styrofoam also has a very light weight making it easy to float in water. in our body, styrofoam almost every day stick very close to our heads. it is a helmet. helmet also contains styrofoam to absorb shocks during impact. For the use of Styrofoam in advertising, usually can be seen on greeting board made ​​of flowers and letters made ​​of styrofoam. Many shape of letters and symbols can be …

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