Welly's

I write about using C, MicroPython and Forth with microcontrollers as well as practical electronics and inexpensive test equipment. Use Courses below to follow a specific learning path on using the Espotek Labrador or learning how to program the RP2040 or Atmega328P. To search the site, try “searchterm site:wellys.com”, in your favorite search engine. For example: “FlashForth site:wellys.com.”

Courses

Developing in C on the AVR ATmega328P: Learning How to Develop C Code on the AVR family of processors
Developing in C on the RP2040: Learning How to Develop C Code on the RP2040
Electronics: Testing using the Espotek Labrador: Learning to use the Espotek Labrador to analyze circuits.
Mecrisp-Stellaris Forth on RP2040 or FlashForth on the ATmega328: Learning Forth using the RP2040 (Raspberry Pi Pico) or the ATmega328P (Arduino Uno).

Writings Topics Most recent

2022-10-02
Developing in C for the ATmega328P: Pointers Where I describe how to develop use pointers in AVR_C.
2022-09-27
Developing in C for the ATmega328P: Code vs. Cost Where I demonstrate the value of coding efficiency to reduce the cost of hardware.
2022-09-26
Developing in C for the ATmega328P: structures Where I demonstrate how to use the C Language data type, the struct and how to use it to simplify a program.
2022-09-24
Developing in C for the ATmega328P: Example Code Where I list all of the examples found in the examples folder for easy reference.
2022-09-24
Developing in C for the ATmega328: Using PROGMEM Where I discuss how to use PROGMEM (storing values in Flash memory) for storage.
2022-09-24
Developing in C for the ATmega328: Marking Time and Measuring Time Where I discuss marking time and measuring program execution time.
2022-09-22
Developing in C for the ATmega328P: Function - tone() Where I describe the function - tone() as well as noTone() and how to play music on the Uno.
2022-09-22
Developing in C for the ATmega328P: Multi-tasking the Arduino - Part 1 Where I develop the C version of multi-tasking, similar to the example provided by Adafruit.
2022-09-20
Developing in C for the ATmega328P: User Functions Where I describe how to develop user functions in AVR_C.
2022-09-18
Developing in C for the ATmega328P: Using Data Types and Math Where I describe the impact of data types on math on an AVR microcontroller (ATmega328P) and pitfalls to avoid.
2022-09-15
Developing in C for the ATmega328P: Mapping Values Where I describe how to map values in one domain to another domain.
2022-09-13
Developing in C for the ATmega328P: Notes Where I comment on the differences between developing code using Standard C vs using the Arduino Framework.
2022-09-13
Developing in C for the ATmega328P: Hints This page provides a broad level of short hints and comments as to C programming and AVR programming.
2022-09-12
Developing in C for the ATmega328P: Function - analogRead() Where I describe the function - analogRead().
2022-09-08
Developing in C for the ATmega328P: Struct - buttons[] Where I describe the struct, buttons[] and how to use it to debounce and check for button presses.
2022-08-29
Developing in C for the ATmega328P: Function - digitalRead() Where I describe the function - digitalRead().
2022-08-28
Developing in C for the ATmega328P: Function - pinMode() Where I describe the function - pinMode().
2022-08-28
Developing in C for the ATmega328P: Function - digitalWrite() Where I describe the function - digitalWrite().
2022-08-25
Developing in C on the AVR ATmega328P: Frequently Found Errors (FFE) Where I attempt to gather in one place, all of the errors found while building (compile/link/locate) and uploading code to the Uno.
2022-08-24
Developing in C for the ATmega328P: Functions - Serial input/output Where I describe the functions for serial input/out - puts(), getchar() and printf().