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arduino, EEPROM, tutorial

Tutorial: Your Arduino’s inbuilt EEPROM

Published by

John Boxall

on

March 16, 2011

In this article we are going to examine the internal EEPROM in our Arduino boards. What is an EEPROM some of you may be saying? An EEPROM is an Electrically Erasable Programmable Read-Only Memory. It is a form of non-volatile memory that can remember things with the power being turned…
Continue reading →: Tutorial: Your Arduino’s inbuilt EEPROM
4047, tutorial

Tutorial – CD4047 Astable/Monostable Multivibrator

Published by

John Boxall

on

February 11, 2011

In this article we are going to examine an older but still highly useful integrated circuit – the 4047 Astable/Monostable multivibrator: Our reason for doing this is to demonstrate another way to create a square-wave output for digital circuits (astable mode) and also generate single pulses (monostable mode). Sometimes one can…
Continue reading →: Tutorial – CD4047 Astable/Monostable Multivibrator
24LC256, arduino, I2C, PCF8574, tutorial

Tutorial: Arduino and the I2C bus – Part Two

Published by

John Boxall

on

October 29, 2010

In this article we are going to continue learning about the I2C bus and how it can work for us. If you have not already, please read and understand the first I2C article before continuing. First of all, there are some limitations of I2C to take into account when designing…
Continue reading →: Tutorial: Arduino and the I2C bus – Part Two
arduino, CN75, ds1307, I2C, MCP4018T, tutorial

Tutorial: Arduino and the I2C bus – Part One

Published by

John Boxall

on

October 20, 2010

In this first of several tutorials we are going to investigate the I2C data bus, and how we can control devices using it with our Arduino systems. The I2C bus can be a complex interface to master, so we will do my best to simplify it for you. In this…
Continue reading →: Tutorial: Arduino and the I2C bus – Part One
74HC238, arduino, tutorial

Tutorial – NXP 74HC238 Decoder/demultiplexer

Published by

John Boxall

on

July 16, 2010

In this article we are going to examine the 74HC238 decoder/demultiplexer IC. Our reason for writing this was to examine another way to get more output pins when using an Arduino or compatible board. However you can use any combination of three logic lines to turn on or off eight mutually…
Continue reading →: Tutorial – NXP 74HC238 Decoder/demultiplexer
education, learning electronics, lesson, soldering, tutorial

Education – Soldering is Easy!

Published by

John Boxall

on

April 13, 2010

Soldering to some people can seem scary and dangerous. And if done incorrectly, or in the wrong state of mind, and/or with the wrong equipment – it can be. A fine person by the name of Andie Nordgren has come up with a comic flyer that explains soldering in a…
Continue reading →: Education – Soldering is Easy!
ICL7660, tutorial

Part Review – Intersil ICL7660

Published by

John Boxall

on

April 12, 2010

Today we are going to quickly examine a very simple yet useful part – the Intersil ICL7660 CMOS voltage converter. This is the part you have been looking for when you needed -5V and you’re not running off a multi-tap transformer. For example, some old-school TTL electronics projects need +/-5VDC…
Continue reading →: Part Review – Intersil ICL7660

Hello,

I’m John Boxall

Welcome to my website “tronixstuff”, a cosy corner of the internet dedicated to our world of electronics. Here, I invite you to join me on a journey of learning by that started in 2010. My amateur radio callsign is VK4JBX.

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