Where I use examples from “The C Programming Language”, Kernighan & Ritchie, to demonstrate string copies, using pointers and how to check for buffer overflows.

Introduction#

I find it very helpful to periodically review/read “The C …

Where I demonstrate how to reload Optiboot on an ATmega328P (Arduino Uno) and reload the Catarina bootloader on to an ItsyBitsy 32U4 board as well.

Introduction#

Sometimes a board’s bootloader can become corrupted or you have consciously overwritten …

Notes and entries on using the Arduino ecosystem across the Uno, 32U4 and RP2040.

Entries#

1. Arduino: Reloading Bootloaders on the Uno and the 32U4
2. Using Arduino on the RP2040: Notes
3. Using Arduino on the RP2040: I2C
4. PinTest

Where I expand on creating a web server application on a Pi Pico W by incorporating web sockets.

Repository#

• MicroPython Webserver on Pico W

Introduction#

In the first part of this entry, I introduced the ability to develop an HTTP-based web server using …

Where I discuss various serial monitor applications and why I believe CoolTerm is the best one.

Introduction#

The serial port is an invaluable, if not mandatory tool, for developing programs in embedded computing. Given the popularity of software …

Where I demonstrate an enhanced on-board shell for RP2040 (Pi Pico and Pi Pico W) using MicroPython, upysh2.py.

Introduction#

While Thonny can be a bit cumbersome if you already know Python, it does have advantages in being able to provide fundamental file …

Where I begin to develop applications for the RP2040 (Pi Pico and Pi Pico W) using Micropython.

Introduction#

In Getting Started, we created simple programs and used paste mode to enter the programs into the Pico storage. This works well for short programs …

Updated: Where I describe the different options for using a serial monitor and the serial software in AVR_C and change my recommended programs.

Introduction#

CoolTerm appears to be malware on some systems and PuTTY, its important to install from the proper …

Where I describe how to use the GNU Linker wrapper capability and variable arguments to enhance printf() for better debugging.

Introduction#

This recent post fascinated me. It describes a feature of the GNU linker called wrapping which allows you to …

Where I describe various methods of debugging programs using MicroPython on the RP2040 (Pi Pico and Pi Pico W).

Introduction#

Programming is a science, debugging is an art. When I chat with students learning to program, I’ve found it isn’t …