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2025

2024

2023

2022

2020

Control Arduino via USB OTG from Android

This script allows Johnny-Five to run from a Termux terminal communicating with other Android apps or external devices by using the TCP protocol without root, without bluetooth and without the WiFi shield. The reason for the TCP protocol is that Termux still does not implement USB-OTG to Serial drivers and the vanilla Johnny-Five would hang right out the box because of this limitation.

2019

2018

2017

2016

Equations and algorithm for Reverse Osmosis systems normalization

On this page you will find a normalization algorithm that can be built in the PLC or in a SCADA system, therefore eliminating the need of the spreadsheets. This algorithm will deliver the normalized results in three variables: Pressure Drop, Permeability and Salt Passage rate. It also can consider the Concentration Polarization factor for a higher precision.

2015

2014

2012

Crossing the Andes on bike

Crossing the Andes on bike

The trip was divided in two parts, the first one consisted of the route between Malargüe (Argentina) and Curicó (Chile) by the Paso Vergara. The second part of the trip had many route alternatives, we planned three options for the paths, the plan A, B and C. During the trip we decided to follow another track later called “Plan D”.

2011

2010

2007

2006

2005