Where I list all of the examples found in the examples folder for easy reference.

Introduction#

When using a specific function or while attempting to understand a C programming concept, it is helpful to see a working example. The examples below, (except …

Where I discuss how to use PROGMEM (storing values in Flash memory) for storage.

Introduction#

Storing message strings in AVR RAM can become prohibitively expensive, very quickly. With only 2KB of RAM, the Uno needs as much RAM available for dynamic …

Where I discuss marking time and measuring program execution time.

Introduction#

The Arduino has two time routines, millis() and micros(). The former provides the ability to measure time in milliseconds for a long period of time (50 days) and the latter …

Where I describe the function - tone() as well as noTone() and how to play music on the Uno.

Introduction#

Using the function tone() allows us to play musical notes via the Uno and a speaker. Using tone() is more difficult than understanding the command. …

Where I develop the C version of multi-tasking, similar to the example provided by Adafruit.

Introduction#

An informative and valuable lesson on the Adafruit site is Multi-tasking the Arduino - Part 1. In this explanation, the author lays out how to …

Where I describe how to develop user functions in AVR_C.

Introduction#

While much of the content in “Developing in C for the ATmega328P” is focused on the Library functions, developing your own functions is an important aspect of programming in …

Where I describe the impact of data types on math on an AVR microcontroller (ATmega328P) and pitfalls to avoid.

Introduction#

While working on the mapping entry I ran into a problem with the mapping function. The function wasn’t returning correct …

Where I describe how to map values in one domain to another domain.

Introduction#

Mapping is the concept of translating a range of numbers to a second range of numbers, where the second range might be smaller (typically) or larger than the first range. …

Where I comment on the differences between developing code using Standard C vs using the Arduino Framework.

Introduction#

The goal of the AVR C content is to demonstrate how you are able to develop code in C without the Arduino Software Framework. This …

This page provides a broad level of short hints and comments as to C programming and AVR programming.

C Best Practices#

From Embedded C Coding Standard Barr Group

While the entire book is outstanding, I want to call out some specific practices which I …