Happy Pi Day

Well, just a Happy Pi Day to everybody who care :)

Stay tuned for articles with the glorious Pi in the near future.

Huzzah32 - start to play with

Huzzah32

Adafruit has many nice platforms to start to create embedded devices.
This article would help to start to play with this platform.


One of them is called Huzzah32, member of the Feather family.
The Huzzah32 is based on a dual-core ESP32 chip, 4 MB of SPI Flash, and tuned antenna since it has both WiFi and Bluetooth Classic/LE support plus some GPIO ports, I2C and SPI capabilities.

How to save family info

Many years ago, in the 1999, I started with my brother in law, an ambitious project :

The Project APKH

The goal was (is) to document, store and preserve information about our families.

EasyEDA tips - edit components

EasyEDA like many other CAD allows to create your own components.
There are lot of documents and tutorials on the net, but still some information are often hidden or not easy to find.
Hopefully these tips can help.

Privacy anyone ?

I did find a project related to Amazon Echo or Google voice and is somehow interesting, under some points of view.
This project is basically a "piggy back" contraption  to be put over an Echo or Google device.
The gadget constantly send out noise to the "home assistant" until a specific word is said.
This supposedly should solve the allegedly privacy problem.

Storing projects - the idea

How to store a project to preserve it for the future ?
My project have up to three components.
A description/documentation. some code, schematics.

I like the idea to have my work not only stored in different servers like Bitbucket or EasyEDA or Blogger but also stored on my server, locally.

Radioactivity measurement - First hike of the year

Measurement done during the first hike of the year in the Flatside Wilderness area (AR).

Radioactivity measurements - Rattlesnake Ridge hike

Measurement done during a hike on the Rattlesnake Ridge area.

Radioactivity measurements - stationary test

The first measurement is a stationary test I did in the office (North Little Rock).
I left the geiger turned on for few hours in the same position.

Radioactivity measurements - introduction

Just for fun I started to collect some radioactivity measurements.
I did something similar 35 years ago in Italy with a DIY kit from Nuova Elettronica.
Why ? Well, as I said, just for fun and curiosity and don't forget we have a nuclear plant in Arkansas. Never hurt to monitor if something fishing is going on (and no, so far everything is fine for what I can say :) )