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.

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.

Written by Enrico Espinosa

From the end of 80’s important international companies operating in electronics looked for partnership to outsource the manufacturing activities. The intent of multinational companies operating in the telecom, automotive, IT business, was to leave the manufacturing activities to focus on their own core business. This strategic approach to business allowed international OEM firms to enter in the European market through commercial agreements and the acquisition of production sites. Their business model was to supply entire business unit products acquiring the manufacturing divisions. The target for the OEM was represented by multinational companies with leading technological products, and what it was happening met this expectation. The single technology design of family products allows the international OEMs to dedicate entire lines to a single customer emphasizing the specialization of their assets (human capital, and equipment). In addition, their competitive advantage were the high capital reserves to buy production sites and to cover costs of ramp-up manufacturing activities.

How to use the MCP79410 Real Time Clock

In this article I'm going to show you how to use the MCP 79410 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 MCP79410 is a Real Time Clock (RTC) chip that uses a digital compensation of the time to realize an accurate clock/calendar. It has a programmable output line (it is possible to program up to two alarms), it can be backupped by an external battery (there is an ad hoc circuit), it has a small non volatile memory to store data and a small backupped SRAM.

We have developed this library to use the i2c bus on our 12f1840 development board.

http://www.xappsoftware.com/wordpress/?p=3523

http://www.xappsoftware.com/wordpress/?p=3428

Naturally it can be used also with our PICcoletta board and with other boards which use Microchip PICs. Leave a message to this post if you find useful this library or if you use this library with other PICs.