Electronics Guru Hands On Knowledge Website
I love to rip things apart and learn how things work. Hacking
electronics hardware, Ethernet/RS232/RS485 or any other proprietary
communication. I have managed to hack quite a number of system. These
learning experiences have had helped me integrate many systems with
ease. I love being a hacker. But this website does not teach you to
become a hacker. The information here contains useful information and
concept to let you aware that electronics is not as difficult to
understand than most people think it is. Electronics is easy and fun.
Have great fun.
NFC (Near Field
technology has been around for quite some time, improving the logistic
efficiency replacing the barcode scanning system. The industry has been
slow in adopting RFID because of the tagging cost over a barcode system.
The new NFC is
physically similar to a RFID system, and is leading in applications
that RFID has not been able to achieve.
further understanding about RFID and NFC, we will be able to see why
RFID will be the future trend. This article introduce the RFID
technology and focus mainly in the NFC application.
examples on building a PIC microcontroller project. There will be
examples of digital/power electronics sensing and control examples that
are useful for most microcontroller projects.
how to run Raspberry Pi like a microcontroller .
| Spotronic 1
to be a remote control robot with the ability to be autonomous. Still
under development. Have been spending years to search for the exact
robot parts within reasonable budgets. Started since year 2000, it is
still a long way to go. The various project module found in this
website is closely related for this robotic purposes. More and more
modules will be developed gradually to complete this long dream robot.
Maybe some day, once again the opportunity to participate in the
Singapore Robotic Games, just like the old days in Singapore
get closer to Spotronic
Prototype robot, Spotronic 1
| Serial Communication
to communication between electronics, computer devices. Beginner's
guide to the popular RS232, RS485 and USB-Serial. Circuit schematic are
presented for communication between computer and microcontroller. RS232
communication testing and troubleshooting will be discussed. There are
also various free RS232 software for downloading, to help debugging the
Knowing how to work
with a switch, helps the understanding of interfacing to electronic
switching devices. This article presents the idea of electronic circuit
interfacing, which leads to better understanding of controlling high
powered devices. Simple circuit interfacing using switch and transistor
are posted for your references.
devices like Switches, Relay, Reed Relay, Solid State Relay,
Transistor, Opto-coupler and MEMs Relay are presented, providing a
clearer choice in designing your electronics interface.
dc-dc on a home fabricated PCB
LM2576 from national semiconductor.
as Buck or Switching Regulator, it functions as a voltage regulator,
similar to the well known LM7805 regulator IC.
switching regulator has a highly efficient regulated supply that can
support most of your electronics project. The LM2576-5.0 3A rated dc-dc
converter IC is able to accept a wide input voltage (9Vdc, 12Vdc, 24Vdc
or range 7Vdc to 40Vdc) to a regulated 5Vdc output. Try it now to
provide efficient regulated voltage for your circuits.
are a variety of regulator model providing 12V, 5V, 3.3V or adjustable
voltage output. Switching regulator LM2575 will also be introduced.
Poster: Tracking and Surveillance
image processing research that focus on the characteristic of color. A
unique algorithm is discussed to detect and track human subject, solely
base on color. The tracking of color includes skin, clothing and any
other color that is related to the human subject.
and tracking human using color has a lot of robust advantage, compare
to commonly known methods like background removal or background
algorithm is presented using Visual C++, to demonstrate the concept of
this unique and original idea.
8870 DTMF Circuit
using DTMF IC
circuit detects the dial tone from a telephone line and decodes
the keypad pressed on the remote telephone. The dial tone we heard when we pick up
the phone set is call Dual Tone Multi-Frequency, DTMF in short. The
name was given because the tone that we heard over the phone is
actually make up of two distinct frequency tone, hence the name dual
tone. The DTMF tone is a form of one way communication between the
dialer and the telephone exchange.
complete communication consist of the tone generator and the tone
decoder. In this article, we will be trying on this IC MT8870DE, the
main component to decode the input dial tone to 5 digital output. These
digital bits can be interface to a computer or microcontroller for
further application (eg. remote control, phone line transfer operation,
First workable FM
transceiver circuit using nRF401 IC. The circuit model KRF-DTR401
implement purchased from a taiwan company Kingtronic RF Corp.
Transmission distance has been conducted at least 200m apart inside an
RF tranceiver can be implemented for your wireless remote control
system using PIC16F877a microntroller and other digital electronic
Thinking of doing a
DIY touch sensor? This IC solution is simple and easy to integrate into
your existing circuit. You will have your very own touch sensor in no
time, using this touch IC. Circuit schematic is available for you to
try it out.
Here are more circuits
available for reference. Most of the circuits are designed to interface
with the microcontroller.
DC Motor Control using
DC Powered UPS System
Signal Switching Circuit
2 Channel Delay Timer
A variety of electronics
circuits are once built. The site contains mostly photos and contain
minimum documentation. They are quite out dated design. Have fun.
Electronic dice circuit
Signal / function generator
Parallel port I/O interface
Introduction to the basic
electronics tools and equipment. Power Supply, Oscilloscope and Signal
Kikusui variable DC power supply PAD 35-10L
Tektronix 2445A 150Mhz Oscilloscope
Tektronix 466 100Mhz Oscilloscope
Leader LAG-120B Audio Generator
DIY Home PCB
fabricate PCB (printed circuit board) at home. After numerous attempt,
the PCB is finally fabricated. The website provide basic guidance, a
step by step instruction process of making PCB at home for your
electronics project. Lots of photos and video illustration, to
provide you with a clearer picture of PCB fabrication process.
Hydroxide and Ferric Chloride are the main chemical used in this
process is not ready difficult and is quite fun. Equipment used is
easily available and have minimum mess to clean up.
on and enjoy making PCB for your electronic projects now.
DIY Easy Surface
having difficulty soldering small smd IC and components? Click in here
for tips on soldering fine pitch smd components. All you need to know
& Wiring Guide
This is a simple reference guide for my PCB
component, footprint, trace routing, cable and wire selection.
The reference also
includes a drilling guide for the tapping metric screws.
Working with dangerous
voltage, it can be scary. The objective of this section is to introduce
the various electronics components used in working with 230Vac voltage
I have also explore
the safety and danger aspect when working 230Vac. It is a must read
section before any attempt to mess around with high voltage project. Do
pay attention to 230Vac!!!
Lighting up your home. This article provides some information on the
typical wiring for flourescent lamp. I have setup the connection to do
my benchmark; and demonstrate the advantage of using a electronic ballast as
compare to a normal one.
A list of lighting
bulbs shape/base with picture illustration.
saving energy here, by understanding more about your carbon footprint
at home. Be conscious about our energy consumption and start conserving
electricity at home. Do our part for our only planet earth.
Let us begin our
journey with this power meter and start measuring my household
appliances consumption in the house.
How Power Saver
Works? or perhaps Don't work.
be misleaded by my title. I know of many customers being believers of
how the power saver product can help them save on their electricity
bill. This article is NOT about how power saver works, but more about
why power saver "Don't Work". To understand how it don't work, we have
to understand how it works.
| Pico ADC-100
ADC-100 can be use as a oscilloscope, spectrum analyser, data
acquisition. For this particular model, the bandwidth is rather low at
100K sampes/sec. For general audio signal analysis with bandwidth of
20kHz, it should be just nice.
conversion code is written in C language, using Turbo C++ 3.0 compiler.
For a start, you may like to download the source code for *.plw to *.txt
convertion as reference. It will provide basic understanding and
eventually helps you in writing your own codes to convert your pico-log
are received from user that they are facing conversion problems with
the pico-log file. Just to let you aware that the conversion code is
written for a fix number of samples. You can easily do a bit
modification for it to work for your own application.
on the discussion from the pico forum,
old codes may not be able to convert properly for the first few samples
in the *.plw file. It could be due to the file format generated by
different version of PicoLog data acquisition software. The format of
the file version may have slightly different file header size.
resolve this issue, you have to modify the file header size in the
source code. This will helps in data alignment, resulting in correct
conversion of the first sampled data in the *.plw file.
matlab analysis script is included, that is use to analysis the pico
data. This script
be useful for reference.
20 Nov 2005, by Siong
| Ascii Code
reference, and windows ALT key code to insert your frequent use symbols.
▼ !"#$%&'() ©®™•§
Øø÷°±µ¼½¾ Math Symbols
| 3D Printer Singapore
to own a 3D printer in Singapore? Buy and own a 3D printer in your own
home. Design and build locally in Singapore. Strong local technical
team with local warrenty support.
3D printer is build using 3D printed materials. A printer that is
designed to print parts durable enough to reproduce itself. Using
quality and reliable parts and filament. Click here to start designing
and build your custom parts with a personal desktop 3D printer.
Here are some of the
good books for recommendation. Most book listed are easy to read, and
is very suitable as an introduction to the subject.
Various Books on
electronics, programming, mathematics, web design, etc.
The following are some
article that I find very interesting. Many people might find
electronics difficult to learn. Have the misconception that you need to
deal with a lot of formula and equations. In fact, electronics are not
difficult at all. It takes times to pick up the knowledge. The ultimate
aims is to understand the nature of electronics. How do electronics
behave? Also learning from the mistake people made. How do we apply the
behavior to work out an application.
The following articles
introduce again, in simple language, the practical and fundamental
know-how in working with electronics. Those who thinks that electronics
are difficult, give yourself another chance by reading these.
Recommand website (Alternative
component datasheet for reference.
- Image Clips