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Showing posts with label digital. Show all posts
Showing posts with label digital. Show all posts

Thursday, December 16, 2010

Read a digital caliper with a microcontroller (Hackaday.com)

[Husband] wanted a way to read a digital caliper electronically measures. He finished by using dashboard to do it, but not all the necessary equipment is seen above. The compass cost him about $7 on eBay, and they have four pins interface makes this hack quite a bit more easy. After a few test establishes their purpose. voltage, ground, clock and data. A bit of scope is proven to be data that were sent in 24-bit burst in the packages that are fairly easy to decode.

Hence, it is just a matter of interfacing with a microcontroller. The chip it uses is a MSP430G2231 runs at 3. 3V, but the logic of the caliper high is only 1. 5v. By constructing a map with a pair of transistors, the data and clock of the compass successful firing pins on the MSP430 low. This is gathered and analyzed by firmware [Mari] and can be read on a PC using a terminal program.

[Thanks Chris]

Tuesday, December 14, 2010

Apache leaves Java group, captures the waves (digital trends) (Yahoo!)

(In a controversial move, the Apache Software Foundation (ASF has Harmony) compliant Java language standards because Oracle releases suites of tests required under a suitable free license.

"" Apache Software Foundation finds that this plan is not a process of open - specification that Java specifications are a proprietary technology that must be licensed directly from the spec pursuant to head regardless of the spec lead chooses. ""the ASF has written on his blog. "The recent vote for Java SE 7 was the last chance for the community JCP demonstrate that the it has any intention to defend the JCP as a process of open specification.

The dispute on the follow-up of test dates all return for 2006, when Java creator Sun Microsystems - Oracle acquisition was completed at the beginning of the year – refused to grant a licence for the Technology Compatibility Kit (TCK) compatible with the Apache license conditions. The TCK is one of the three prerequisites for certifying a java implementation. Sun license allows the TCK for use in any GPL Java implementations that derive substantially Sun OpenJDK, but not any independent source.

Resignation of the ASF casts doubt on the future of harmony as well as Java open source projects funded by the Apache Software Foundation. The ASF has been a member of the Executive Committee for ten years and has recently tried to persuade the other members of the EC to block the ratification of the Java Standard Edition 7 protest on TCK licenses. In the past, EC members have chosen to cancel licensing dispute TCK to focus on the advancement of the platform; While the ASF gather support, it is not enough black ratification of Java SE 7.

Furthermore, the Apache Software Foundation will serve as an incubator for product now-abandoned Google wave. Google Wave was supposed to revolutionize email, instant messaging and collaboration of paper, but failed to find traction with users of the computer every day, which were most often confused that Wave seems to just do things they could already do…just not so. Nevertheless, some people who live and breath through online collaboration processes are much to like in the waves, and Google announced that waves will continue as the open source Apache Wave in the Apache incubator program. Code important contributors to Google have already signed the project with an eye toward the advancement of the wave in a product box and the wave Federation Protocol.

Sunday, December 12, 2010

Apache leaves Java group, captures the waves (digital trends) (Yahoo!)

(In a controversial move, the Apache Software Foundation (ASF has Harmony) compliant Java language standards because Oracle releases suites of tests required under a suitable free license.

"" Apache Software Foundation finds that this plan is not a process of open - specification that Java specifications are a proprietary technology that must be licensed directly from the spec pursuant to head regardless of the spec lead chooses. ""the ASF has written on his blog. "The recent vote for Java SE 7 was the last chance for the community JCP demonstrate that the it has any intention to defend the JCP as a process of open specification.

The dispute on the follow-up of test dates all return for 2006, when Java creator Sun Microsystems - Oracle acquisition was completed at the beginning of the year – refused to grant a licence for the Technology Compatibility Kit (TCK) compatible with the Apache license conditions. The TCK is one of the three prerequisites for certifying a java implementation. Sun license allows the TCK for use in any GPL Java implementations that derive substantially Sun OpenJDK, but not any independent source.

Resignation of the ASF casts doubt on the future of harmony as well as Java open source projects funded by the Apache Software Foundation. The ASF has been a member of the Executive Committee for ten years and has recently tried to persuade the other members of the EC to block the ratification of the Java Standard Edition 7 protest on TCK licenses. In the past, EC members have chosen to cancel licensing dispute TCK to focus on the advancement of the platform; While the ASF gather support, it is not enough black ratification of Java SE 7.

Furthermore, the Apache Software Foundation will serve as an incubator for product now-abandoned Google wave. Google Wave was supposed to revolutionize email, instant messaging and collaboration of paper, but failed to find traction with users of the computer every day, which were most often confused that Wave seems to just do things they could already do…just not so. Nevertheless, some people who live and breath through online collaboration processes are much to like in the waves, and Google announced that waves will continue as the open source Apache Wave in the Apache incubator program. Code important contributors to Google have already signed the project with an eye toward the advancement of the wave in a product box and the wave Federation Protocol.

Saturday, December 11, 2010

Apache leaves Java group, captures the waves (digital trends) (Yahoo!)

(In a controversial move, the Apache Software Foundation (ASF has Harmony) compliant Java language standards because Oracle releases suites of tests required under a suitable free license.

"" Apache Software Foundation finds that this plan is not a process of open - specification that Java specifications are a proprietary technology that must be licensed directly from the spec pursuant to head regardless of the spec lead chooses. ""the ASF has written on his blog. "The recent vote for Java SE 7 was the last chance for the community JCP demonstrate that the it has any intention to defend the JCP as a process of open specification.

The dispute on the follow-up of test dates all return for 2006, when Java creator Sun Microsystems - Oracle acquisition was completed at the beginning of the year – refused to grant a licence for the Technology Compatibility Kit (TCK) compatible with the Apache license conditions. The TCK is one of the three prerequisites for certifying a java implementation. Sun license allows the TCK for use in any GPL Java implementations that derive substantially Sun OpenJDK, but not any independent source.

Resignation of the ASF casts doubt on the future of harmony as well as Java open source projects funded by the Apache Software Foundation. The ASF has been a member of the Executive Committee for ten years and has recently tried to persuade the other members of the EC to block the ratification of the Java Standard Edition 7 protest on TCK licenses. In the past, EC members have chosen to cancel licensing dispute TCK to focus on the advancement of the platform; While the ASF gather support, it is not enough black ratification of Java SE 7.

Furthermore, the Apache Software Foundation will serve as an incubator for product now-abandoned Google wave. Google Wave was supposed to revolutionize email, instant messaging and collaboration of paper, but failed to find traction with users of the computer every day, which were most often confused that Wave seems to just do things they could already do…just not so. Nevertheless, some people who live and breath through online collaboration processes are much to like in the waves, and Google announced that waves will continue as the open source Apache Wave in the Apache incubator program. Code important contributors to Google have already signed the project with an eye toward the advancement of the wave in a product box and the wave Federation Protocol.