Teach your Arduino to listen with µSpeech
When most people say “Arduino” they mean an ATmega328 based board like the Uno. This means a simple 8-bit microcontroller with only 2K of RAM. That’s 2,048 bytes of memory to work …
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Arduino: Assignments != Comparisons
There is one mistake that all C programmers make, regardless of experience. You’ll do it often when you get started, but never completely stop. The mistake? Confusing the …
Read MoreWhen do you use the Arduino's Serial.flush()?
In the Arduino library, the Serial object has a method called “flush().” Often users go throwing it into programs without fully understanding what it does. It doesn’t help that …
Read More5 Myths Everyone Believes about Arduino (that aren't true)
Having spent the past 6 years writing code for the Arduino platform, I’ve noticed a trend in myths from both newcomers and veteran users. Here are the Top 5 Myths I see come up on …
Read MoreAddOhms #7 - Comparing Arduino and Raspberry Pi
The seventh AddOhms TutorialCast has gone “live”. (Gone “uploaded” sounds wrong.) Being able to understand difference between an Arduino and a Pi is a critical point for many new …
Read MoreArduino: De-Bounce a Button with micros() or millis()
The Arduino is fast, humans are slow. When you push down a button, what seems like a single change to slow humans is really multiple presses to an Arduino. This is known as …
Read MoreArduino: Chasing LEDs with millis()
A popular LED project is the “Larson Scanner.” This scanner emulates the effect seen on KIT from Knight Rider and the Cylons in Battlestar Galactica. The code is usually written …
Read MoreArduino: Timing Code with Millis() as a Stopwatch
Since most Arduino boards do not have debug capability, this limits the programmer to using Serial.prints. A useful piece of information might be knowing how long certain parts of …
Read MoreArduino: Independent On-Off Times with Millis()
When using delay() to flash a LED there is a time for the LED to be on and then off. This makes it easy to have independent control of the “on” and “off” times. The standard blink …
Read MoreArduino Millis() Examples
You’ve recently learned about millis() and can’t way to delete all of your references to delay(). The problem is that you don’t know quite how to convert your code into …
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