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Zx Lee

Personal Blog on Electronics and Programming

Review on Toner Transfer Paper

Previously I made an article on how to make your own PCB at home using toner transfer method. In that article I am using magazine paper to transfer the toner to the PCB. The results of using magazine paper is satisfying for simpler circuit, at least for my case. However, when working with more complex circuit, its getting tougher. So today I am going to show a better method to make your own PCB, which is using toner transfer paper. Toner transfer paper can be obtained very cheap from China seller, so I think its quite affordable for hobbyists who wants to make their PCB at home.

Continue reading “Review on Toner Transfer Paper”

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Infra-red Sensor (IR)

What is infra-red (IR)? Infra-red is an electromagnetic wave who wavelength is between 0.75 microns to 1000 microns (1 micron = 1µm). Since infra-red is out of visible light range, we can’t really see IR with naked eye. However, there is a method to “see” IR which will be shown later on. Some of the infra-red applications includes night vision, hyperspectral imaging, and communications. We also use IR daily in our TV remote or any device remote.

infrared
IR range in electromagnetic spectrum

Continue reading “Infra-red Sensor (IR)”

Tips on using Light Emitting Diode (LED)

We often use Light Emitting Diode (LED) in project as display, indicator or light source. I personally think that LED provides a great visual effect to your project, isn’t it? Today I am going to share some of the tips on using LED that might be useful to your LED project. Continue reading “Tips on using Light Emitting Diode (LED)”

Digital Clock Using 7 Segment Display controlled using TV Remote

Recently I have made another digital clock as a mini project for my course, Microprocessor. If you are following my previous projects, you may noticed that I have made two digital alarm clocks before, one displayed on 7 Segment Display and the other displayed on Liquid Crystal Display. However in this projects, the digital clock combines both of the display. Another special feature in this project is that no buttons are used to control it, instead TV remote is used to control the clock wirelessly.

There are varieties of digital clock available in our daily life. Basic digital clock usually will have some built in features such as alarm clock, calendar, and thermometer besides display the clock information. Some of the advance digital clock also has features such as AM and FM radio. Most of the digital clocks are using LCD display.  Continue reading “Digital Clock Using 7 Segment Display controlled using TV Remote”

RF Controlled Robot Car

My first two projects related to Arduino are clock related. If you haven’t seen them before, its the Digital Alarm Clock and Digital Clock on 7 Segment Display. Now, I am going to share a project which uses Cheap RF Modules to control robot wireless.

The wireless transmission uses cheap RF module on 433Mhz. This modules can be obtained at a very low cost. Since they are available at low cost, they are not that perfect as compared to more expensive RF modules. Continue reading “RF Controlled Robot Car”

Digital Clock on 7 Segment Display

Today I am going to share and explain about a mini project that I made during my free time, which is a Digital Clock displayed on 7 segment display. In this digital clock, there are a few functions available such as stopwatch, countdown timer, temperature display and time settings. Although I think I still can go more besides this 4 functions, which I will try to develop it in the future. Besides that, this clock also has keypad which allows user interface. Continue reading “Digital Clock on 7 Segment Display”

GPS Bee Kit (Part 2)

In my previous article, GPS Bee Kit (Part 1), I have shown a few methods how to read NMEA messages directly from your computer without an Arduino. In this post, I will explain some basics of the NMEA message and how to make a simple interface with Arduino and GPE Bee Kit.

gps8 Continue reading “GPS Bee Kit (Part 2)”

GPS Bee Kit (Part 1)

Global Positioning System (GPS) is a space based satellite navigation system that provides location and time information. Initially, GPS only available for military used in tracking, but now it is available to everyone. GPS is widely used in application such as military, robotics, astronomy and etc. But we can also see the application of GPS in our daily life such as navigation system in advance car or mobile phone with built in GPS. A basic GPS provides information such as location (latitude and longitude), altitude, speed, and time.

gpsa1 Continue reading “GPS Bee Kit (Part 1)”

74HC595 8 bit Shift Register

Have you ever wondered how people made their projects controlling tons of LEDs with just a single Arduino? Controlling all the LEDs individually requires a lot of pins. So, now I am going to introduce you to shift register. In this tutorial the shift register that we are going to use is 74HC595, 8 bit shift register. By using shift register, you expanded a lot of output pins from your Arduino, that is the best part! Continue reading “74HC595 8 bit Shift Register”

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