xAppSoftware Blog

In April 2011 I wrote about the PIC18F27J53 describing it like a monster for its capabilities, and I promise to build a development board with it.

And now this board is here!!!

The Pic18f27J53 has the following features:

Our RM2012 microcontroller with integrated sensors for measuring temperature and humidity has shown a bug, we apology for this problem. we are going to solve it a soon as possible. We think we'll have a workaround on the 6 of february. Then we are going to apply a new patch for the end of the next week.

Building a custom kernel is one of the most important rites of passage for advanced Unices users. This process, while time consuming, will provide many benefits to your system. Unlike the GENERIC kernel, which must support a wide range of hardware, a custom kernel only contains support for your PC's hardware. This has a number of benefits, such as:

• Faster boot time. Since the kernel will only probe the hardware you have on your system, the time it takes your system to boot can decrease dramatically.

All electronic devices, computers and  micro controllers need to exchange data with other devices. One of the most used  way, since 1969, is the serial transmission using the RS232 standard when the EIA defined it. Serial transmission is commonly used with modems and for non-networked communication between computers, terminals, printers and other devices It is  useful for debugging purpose in embedded system. In the following paragraphs we describe the serial transmission in the two forms: Synchronous and Asynchronous. 

Yesterday I had to select some raws (1, 5, 9, ….) from a text file.

This has been a hard job because I was trying to solve the wrong problem……

Really, before coding you should analyze deeply your problem and then you should think which tool you need to use.

However, come on and see my experiments:

First of all we need a test file, I'll use the following:

During my experiments with LTIB I've encoutered the following error

Processing: gettext

=====================

Build path taken because: no prebuilt rpm, 

Testing network connectivity for gpp

OK GPP: is available

Try gettext-0.15.tar.gz.md5 from the GPP

Hi All,

we are beginning a new serie of articles about hovercrafts. In six months we are going to produce a really working RC hovercraft.

This new serie of articles will be "Discovering hovercrafts". You can subscribe the feeds to follow the serie.

Minicom is a text-based modem control and terminal emulation program for Unix-like operating systems, originally written by Miquel van Smoorenburg, and modeled after the popular MS-DOS program Telix. Minicom includes a dialing directory, ANSI and VT100 emulation, an (external) scripting language, and other features. Minicom is a menu-driven communications program. It also has an auto zmodem download.

In this short tutorial I'm going to show to you how to implement , in the Arduino UNO environment, the basic functionalities to work with the TCN75.

Materials needed for this tutorial.

• 1 Arduino UNO board (naturally)
• Arduino IDE (naturally)
• 1 TCN75 (naturally I'll use my own board, see related posts)
• 4 jumper cables

Our tcn75 board is described here:

• Working with the RTCC MCP 79410 RTCC (Real Time Clock with Calendar)
  
• How to use the i2c bus with PIC12f1840 (a simple library)
• Temperature sensor and real time clock for Arduino
• A PIC 12f1840 developer board with mcp79410 RTC and tcn75 temperature sensor.

Ok let's start

How to use the TCN75 temperature sensor

In this article I'm going to show to you how to use the TCN75 we have mounted on our boards.

• Temperature sensor and real time clock for Arduino
• A PIC 12f1840 developer board with mcp79410 RTC and tcn75 temperature sensor. 
  

The TCN75 is a very simple temperature sensor but at the same time it is very accurate, with a precision of ±0,5 ° C, fra 25°C≤ TA ≤ 100°C e ±3 °C -55°C≤ TA ≤ +125°C.