Use of Sketchup for Registration of Electronic Card Analysis

A very easy and economic toll to systematize the analysis of electronic card is the Sketchup software. It allows to import a jpeg file of the card and after can draw and annotate on the image. Is our suggestion to implement a local database for electronic repair.

Industry 4.0 in Textile Factories

The textile industry of north of Portugal is well know for the products quality. Especially in Europe and USA market the textiles made In Portugal it's a brand. This appreciation it is enhanced because the Portuguese mills have old know how, but also have, in last decades high standards of service and a great responsiveness and flexibility to costumer requests. However these references are rarely followed up by a functional organization and top technology.

In 2012, a study of University of Minho indicated that 77% of Portuguese textiles engineers did not have any knowledge or implementation about Lean organization. I think there wasn't great evolution since then. Now with the introduction of new technological concepts in top industries, namely industry 4.0, the Portuguese textiles face a new step which can increase more the gap between themselves and the edge industries. On the other hand I believe that this is an opportunity to make the definitive jump to an industry extremely well organized, technologically advanced and totally rethought. But will companies be prepared? I think it's all about have the right people. 

 

Terry Towel Sewability - Contribution to Productivity

Sewability is a term little used in a universe of textile industry. In fact the sewability can to determine the quality and productivity, and this fact it's so much truth how much more heavy the tissue and how fast and automated the production. It's the case of terry towel production.

In modern plants of terry towel are used automated sewing machines with high speed heads. For that reason the set needle, tissue and thread has a dynamic which can not be neglected. The forces that needles can to be submitted reach easily 5.000cN and in these circumstances there is a big probability to broken the thread and to become the needle blunt. If that happen going to lose quality, maybe a rejection, but also or more important going to lose production because it will be necessary amend the thread, replace the needle and tune the head. The University of Minho have studied these theme in particular Hélder Carvalho, researcher of textile department which developed a equipment to measure the forces built-in.

ESP8266 What is?

ESP8266 is a SOC, System on Chip, with Wifi built-in. This chip have CPU at 80Mhz and have the option to operate to 160Mhz. To have a compare, Arduino Uno operates at 16Mhz, it is a stark diference.

ESP8266 have RAM with 32kBytes for instructions and 96kBytes for data. It also have ROM with 64kBytes and Flash memory with 512kBytes. The small ESP8266 have GPIO pins, I2C, SPI, UART, analogic input, PWM output and internal temperature sensor.

Programar Display I2C no Arduino

Como já dissemos, para utilizar um display I2C em Arduino é necessário incluir a respectiva biblioteca no cabeçalho do código:


#include <LiquidCrystal_I2C.h> 

Ainda não dissemos mas é igualmente necessário definir um endereço para o estabelecimento da comunicação, por exemplo:


#define I2C_ADDR 0x3F

Módulo I2C para Display Arduino

Uma das dificuldades para conectar um display vulgar tipo 16x2 ou 20x4 a um Arduino é o elevado número de portas que este requere limitando o uso do Arduino. Uma solução para este problema é recorrer ao uso de um módulo de interface I2C. Este módulo está concebido para acoplar directamente no display e conecta-se ao arduino usando apenas 2 portas mais a alimentação que pode ser externa. O I2C estabelece comunicação série com o arduino através das portas SCL e SDA que correspondem aos pinos 28 e 29 do ATMEGA.

Ciclovias que Brilham

Em Lidzbark Warminski, no norte da Polônia, está em fase de testes uma ciclovia que brilha no escuro. Trata-se de um pavimento sintético que absorve energia solar e reflecte durante a noite até 10 horas depois de um dia ensolarado.

Tabela de Fórmulas para Vigas de Secção Constante

A partir do livro Manual de Fórmulas Técnicas de Kurt Gieck da Dinalivro, fica esta tabela de fórmulas para cálculo da resistência de vigas de secção constante.

Radar com Arduino

Publicamos aqui um exemplo de um projecto um radar baseado em Arduino.

Arduino na Industria porque não?