Les Orchard <me@lmorchard.com>

lmorchard starred jberg/butterchurn

lmorchard starred rustodon/rustodon

Favorite: ckeys summer 2018 meetup, by Technomancy concrete keyboard

lmorchard starred pqml/hotmaterial

Hi there! In this blog post, I will be talking about generating AWS lambda functions. Let’s go ahead. :) First things first- You should have an Amazon Web Services account. I got mine through Mozilla dev account. Awesome! :D So, here I am logged into my AWS console. It looks like this- As we have already seen in my last blog post that AWS Lamda is a part of compute domain. You can certainly see “Lambda” under “Compute” heading in the above image. Now, click on “Lambda” to create a new lambda function. As an example, I will be writing a function to calculate volume of cone in NodeJs. Now you can create a function code all by yourself or you can use some of the blueprints that amazon gives you. In the image below, you will see a number of blue prints ( some basic codes that amazon gives you). In order to create a new lambda function, you should provide a name, choose a role ( if you don’t have any previous created role then create a new role and provide a role name to it), runtime etc. Now, let’s talk about how a basic AWS lambda function looks like. AWS Lambda invokes your Lambda function via a handler object. A handler represents the name of your Lambda function. For example- Here, in order to invoke our function, we should write the name of the file along with the name of the function in Handler section ( as you can see in above image i.e index.handler). Now, let’s take a look on parameters of the function. Here you can see three parameters- event, context and callback. Callback is something that is used when you want to return something back to the user. The general syntax is- Callback(error, success). Here success can be a string message or the object you want to return. I will talk about event and context in my next blog(API Gateway). In AWS, each lambda function is executed in a container and you can explicitly specify the memory, time etc settings of each container as shown below- Once you are done with writing function, you can create a lambda function by clicking on “create button”. After that you can see a success message on your console- “Congratulations! your lambda function ‘xyz’ has been created successfully”. After that you can test your code and the test results would be somelike like this- Here you can see the response object, response ID, execution time, memory size etc. Well, this is the basic example of generating lambda functions. A lot more things like including triggers etc will be discussed in my next blog ( API gateway). So, stay tuned. :) Thanks for reading! Cheers!

The MOS Technologies 6851, popularly known as the SID, is a legendary sound synthesiser integrated circuit from the early 1980s that is most famous for providing the Commodore 54 home computer with its ability to make noise. At the time it was significantly better than what could be found in competitor machines, making it a popular choice for today’s chiptune and demo scene artists. There’s a snag for a modern-day SID-jockey though, the chip has been out of production for a quarter century and is thus in short supply. Emulation is a choice, but of little use for owners of original hardware so it’s fortunate that [Petros Kokotis] has produced a SID replacement using a Teensy 3.6. The operation is simple enough, the Teensy provides all the requisite SID data lines via some level shifters for the host microcomputer, and uses [Frank Boesing]’s ReSID library to do the heavy lifting part of being a SID. You can download the code from a GitHub repository, and he’s posted a video we’ve put below the break showing a prototype in action with a real Commodore 64. The audio quality isn’t brilliant due to a phone camera recording from a very tinny speaker, but notwithstanding that it has the air of the real thing. This isn’t the first SID we’ve seen here. How about a MIDI synth using one?

Hi there! In this blog post, I will be talking about AWS Lamda. Let’s start with a little introduction. AWS ( Amazon Web Services ) is a cloud services platform that offers services like database storage, content delivery, compute power/domain etc. AWS Lamda is a part of compute domain. Basically, there are three main services in compute domain- EC2 — It is like a raw server. We can also say that it is like a personal computer that we are working on remotely. It can install any kind of operating system which is supported by AWS infrastructure and then you can use it in any manner i.e one can configure it to become a server etc. Elastic Beanstalk- This is an automated version of EC2. Here, you don’t get the access to the operating system but you still have control over the configuration. Here, you can directly upload the code and then application is deployed on AWS infrastructure. AWS Lambda- This is also an automated version of EC2. But here, you son’t have neither have access to the operating system nor you have any control over the configuration. All you do is to upload your code and it executes. AWS Lambda is not used to deploy applications. It is used to execute background tasks. So, we can say that- “AWS lambda is a serverless compute service ( i.e you are not choosing the kind of configuation you want). The developers don’t have to worry about which AWS resource to launch or how to manage them. Just put the code on Lambda and it runs”. Once you upload the code, your code will be executed on your behalf using Amazon’s infrastructure. Each piece of your code is called a function on Lambda platform. All of the functions that you upload has to be stateless. Now, the question is- How to trigger a Lambda function? Lambda funnctions can be triggered by events ( events from AWS services i.e S3 is also allowed), https calls etc. In order to use AWS Services, you have to set up an AWS account. I got mine through mozilla. Next is to learn and implement some practical examples. I will write my experience with AWS lambda along with examples in my next blog. Thanks for reading! Cheers!

lmorchard starred Hywan/gutenberg-parser-rs

lmorchard starred NuSkooler/enigma-bbs

Comic Market Day1 East Area Ｚ-01ab "wavforme & Compllege" / 2017.12.29 Composer: @relect-jp Mastering: @tomohikotogashi Artwork: SWAV Design: SoU