MSP430 - reading a TSL2561

The TSL2561 is a chipset capable to read IR and visible light intensity and is the chipset used in the iRis project.
This article give some suggestions about how to use this sensor.

Using PiBackery - my FAQ

April 2019 - Update !
PiBackery is a nice tool to prepare SD cards for the Raspberry Pi.
One of the annoying problems to work with Raspberry in embedded world, is the need to have it connected to a wired network, monitor HDMI and keyboard for the first initialization.

Developer tips - Android studio

Bluetooth RFCOMM connection problem

If you like me are trying to set up a simple Bluetooth RFCOMM connection and you end up having connection errors, especially : read failed, socket might closed or timeout, read ret: -1
is possible the problem lies in a changed default assignment for the socket.

NiRis - the New iRis - the plan

Waiting could be sometime a good thing when designing something.
Like the iRis project I started years ago.

Even if I never posted recent articles about iRis, I did reach a nice stage of development, involving 3D printing design, electronic development and firmware development on different platforms.

iRis project - mechanical support

The support for the mechanical iris and the servomotor that control it, is important as the electronics.
After many experiments, it was 3D printed a support using Tinkercad.

Raspbian - prepare SD card

April 2019 - Update !
I already did in the past an article about a SD card preparation for Raspberry Pi.
The idea behind this article is to find a way to simplify and speeding up to prepare an image for a Raspberry Pi with Raspbian and beside, things change constantly.
Here what we need to do now to prepare a Raspbian image (no NOOBS !!!)

Developer tips - Visual Studio - plist files

Disclaimer !
This article is based on tests/research/finding at April 2018. Things can change.

A project in Visual Studio that involve Apple iOS has some configurations saved in files ending with the .plist suffix.
These files are Property List files.

These files, combined with the project setting, contribute to set up the application configuration that need to match the content of the Provisioning profile.

However the files "per se" contains only few XML lines.

Developer tips - Visual Studio - Apple iOS development types of build

Disclaimer !
This article is based on tests/research/finding at April 2018. Things can change.
 
Apple iOS can be a very complicated environment, especially if Xamarin is involved (Visual Studio on Mac).
This article is part of a small collection of notes about some things that usually annoy the developers :) (me)

Ok ok, these are just some notes for me to remember some annoying things

Developer tips - Visual Studio - Apple iOS certificates

Disclaimer !
This article is based on tests/research/finding at April 2018. Things can change.
 
In order to develop code for iOS (or also Mac) you need to have certificates and provisioning profiles from Apple.
In other words the application will be able to be installed and run on the device ONLY if Apple recognize the certificate.
The certificates are so a very intimate and integral part of the development and preparation of an app for iOS.

Enable passwordless access to a machine

DEBRH or ... Don't Expect Big Revelations Here :)
Just a quick note that maybe can be useful to somebody.

Here the scenario.

We have two Linux machines in the network. A user from the machine A (call it Auser) need to  access some data on the machine B, under a specific user (call it Buser).
So, we can simply use ssh for that.