Though Singleton pattern in Java exists from long time Enum Singletons are relatively new concept and in practice from Java 5 onwards after introduction of Enum as keyword and feature. This article is somewhat related to my earlier post on Singleton, 10 interview questions on Singleton pattern in Java where we have discussed common questions asked on interviews about Singleton pattern and 10 Java enum exampleswhere we have seen how versatile enum can be. This post is about why should we use Enum as Singleton in Java, What benefit it offers compared to conventional singleton methods etc.
But Geany will not work on terminal. If you use Putty or any other terminal to connect to your PI board remotely, then Geany will not be your choice. Instead, you can use "nano" editor from your terminal or if you want to do remote connection with UI, try tightvncserver. We are going to use nano from terminal.
Once you finish your program, the following line will change your program module as executable still you can edit your program thou and this is an one time command for your file.
We are going to use the same method as we did for C program. So, the client object can be used to access Google sheets now on. What is WID in the code? It works normally as 0 based index 0, 12, It is a bit tricky part to understand, you may need to refer to some of the links in references section of this article which I referred for a solution.
WID is an unique ID given for your sheet similar to the gid value. You can find the wid of the sheets if you run this code below and search for "id" tags, you will find something similar to 'od6', 'od7', 'od5', etc. Normally, 'od6' will be the 1st sheet of your spreadsheet.
But, if your delete the first one and the next will not take 'od6'. As I mentioned earlier, it works with index as well. The links which I mentioned gives a formula to calculate wid from gid and vice versa. Here is a bit of information about Relay module, Relay module is our interface switch between our low voltage programmed circuit board and the high voltage outside world.
Three screw points on the other side of each Relay module are our high voltage point. The symbol on your relay showing connected tells you which pin is Normally Closed.
When you supply 5v to the other end of Relay, the Common pin will switch its connection to Normal Open. Ok, thats a bit of electronic stuff, let us come back to our programming stuffs.
Note that, to use GPIO pins, the logged in user needs hardware access permission. I am going to use root permission to the "pi" user. Use either, based on how you understand your board pins. OUT to control heater and cooler. Always make sure you cleanly exit the program by calling GPIO. If not, you may not get access to those pins on your next run.
Create a Google sheet named "URL" and use the sheet id in the script. Update your Python module with Google Appscript Authorization with your sheet id. Run your Python module. So, run your Google Appscript from your browser to authorize and get verification code.
Watch this video for "How it works":Sep 12, · We'll learn how to create a web browser even quicker than you can install one! All using the people's favorite chromium engine!
Well, we had a popular post on LazPlanet about creating a web browser using the GeckoPort feelthefish.com was a great way to create a browser and I love Gecko because it is the darling of open source! There seems to be a problem in the function code, as anything after the functions won't run.
Converter - Fahrenheit to Cel. SD Card.
The Raspberry Pi needs to store the Operating System and working files on a micro SD card (actually a micro SD card for the B+ model, but a full size SD card if you’re using a B model).
Jan 07, · Mr. Bipin S. Rupadiya [M.C.A.] Graphics Designer, Freelancer Assistant Professor, JVIMS-MCA College. How can I write a C program to convert Celsius to Fahrenheit using while loop? float fahrenheit = feelthefish.comt(celsius); This approach is not object oriented, so you can reduce time, memory to initialize, allocate memory for .