Where I begin to work with the Adafruit Feather RP2040 (Feather) and MicroPython (uP) and use the Labrador to test the board.

Using Blink Test to Confirm Board Works#

Using an Interactive Pin Test to Confirm Header Works# …

A short entry to explain how to code using MicroPython on the ESP32.

Background#

In my introduction to Micropython, I mentioned how I wrote MicroPython for the ESP32 on a Mac. As I stated, Phillip van Allen has a nice process, however I like my process …

Where I continue to use the Labrador to test the PWM functionality of the ESP32.

Sources#

• Makeability Lab Lesson 3: Fading an LED with PWM
• ESP32-GetStarted: PWM
• MicroPython PWM
• Espressif: LED Control

Background#

We continue to use the Labrador to …

Where I use the Labrador to test specific functions of the ESP32 running MicroPython.

Sources#

• Quick reference for the ESP32
• ESP32-GetStarted
• Adafruit HUZZAH32
• ESP32-DevKitC I think this is the same as the HiLetGo version I have
• ESP32 Makeability Lab …

Where I investigate using MicroPython on the HUZZAH32.

Background#

I have spent quite a few years using Python to develop applications. I like the language, however I believed it wasn’t a good candidate for microcontrollers. Given the strong …

Where I find a much, more evolved version of ESPForth. While investigating a bug I found in ESPForth (now called ESPForth6), I ran across a new version of ESPForth 7.0, which I’ll refer to as ESPForth7.

Sources#

• GitHub eForth Source
• Documentation …

Where I write an Arduino program to test pins on a specific board in order to confirm a Forth HAL for the same board.

Pin Testing#

When writing software which will control a circuit, it is best to confirm the behavior of circuit using known or familar test …

Where I realize something important about using test equipment!

Big Learning!#

The Labrador has a great price given its performance as a piece of test equipment. However, like all test equipment, it is important to understand and use it properly for …

Using an ESP32 board as a web-based oscilloscope.#

It works! (Kinda)#

It is an interesting approach, however, it doesn’t lend itself well to measurements. I wouldn’t recommend it as a piece of test equipment, it might prove interesting as an …

Where I discuss several versions of Forth and the attributes of each.

Forth Versions#

There are many versions of Forth. This is due to a variety of reasons:

1. Forth as a language is over 60 years old, hence there has been a significant amount of time for it …