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Author's posts
Mar 07 2017
Hacking your Car with an Arduino and a CAN BUS Module
Your car is full of electronic devices. In fact, General Motors is one of the largest computer manufacturers due to its need of microcomputers in cars that it makes. If you have an interest in what goes on with your cars’ electronics, you might want to invest some time hacking your car with an Arduino …
Feb 12 2017
PIC Assembler Coding
I became re-interested in Microchip PIC assembler coding recently. I hadn’t really used it for a number of years (since before 2009). The ‘C’ language is usually efficient enough and easier to code for most projects I do. I used one of my DIY PIC18F4550 Pinguinos for experimentation. As you might guess, I decided to …
Jan 25 2017
DIY Arduino Shield
An Arduino shield is basically another circuit board that plugs into the Arduino and extends its capabilities in some way. So, of course, if you create your own DIY Arduino, you have to create a DIY Arduino shield. I needed a way to attach an HD44780 LCD to my DIY Arduino so I created a …
Dec 24 2016
Updated DIY Arduino Uno
![DIY Arduino [Side View]](https://microcontrollerelectronics.com/wp-content/uploads/2016/12/DIY_Arduino_Side-300x200.png)
I have a new version of my DIY Arduino UNO. It is somewhat different than the old one that I have written about before (HERE). I moved some components around on the board, added the user LED and moved all the wiring to the bottom of the board. Here is a picture of what it …
Nov 24 2016
Experimenting with Arduino-Builder
Lately, I have been experimenting with Arduino-Builder. It was been available as a command line interface to compile sketches since version 1.6.6 of the Arduino IDE. It is actually what the Arduino IDE invokes behind the scenes to compile the sketch. It is written in the Go language. The source code is available HERE on …
Nov 10 2016
An ATmega328 with two Identities
Some would say that an ATmega328 with two identities is not possible. However, it depends on who you ask. 🙄 First though, before we ask, here is some necessary background information. Microcontrollers from Atmel (AVR) and Microchip (PIC) have a built in ‘signature’ or identity. This signature is a unique code that identifies its …
Nov 07 2016
If you have the time
The arduino does not have an RTC (Real Time Clock). However, it is trivial to add one. And if you have the time, you can do a number of interesting things with your arduino, limited only by your imagination. I am using the DS1307 RTC module which looks like this: …
Sep 26 2016
Connecting an Android Phone to an Arduino
Connecting an Android Phone to an Arduino could not be easier. All you need is an OTG cable. I wrote a previous post here about connecting and controlling an Arduino from your Android device. Previously, I had always connected real Arduinos. This time I tried connecting my DIY Arduino. Pictured above …
Sep 07 2016
Flashrom and an Arduino at 3.3V
Flashrom is an amazing piece of software and a life-saver when you need it! If you’ve tried to update your BIOS before using manufacturer supplied software and something went wrong, then you know how valuable Flashrom can be. I’ve written about Flashrom and the BusPirate in a previous post HERE. However, I just found out …
Jun 27 2016
TV Video Output from the Arduino
I made another circuit to display TV Video output from the Arduino. It uses the TVOut library (documented at the TVOut Arduino Playground) which can be used to output an NTSC or PAL video signal. The circuit is actually just a means of adding three resistors to an RCA video cable. Instead of cutting a …
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