Having a hard time understanding an analogue circuit? One smart way to understand how a circuit works is by simulating it and changing its components parameters to see how they affect the output signal. For more info on how to do this, check Developpa’s guest post at Build Electronic Circuits
One of the main challenges that HW startups face is the issue of financing the project. Fortunately, in the last years, a range of different alternatives has risen allowing many companies to take that initial jump and pay for development and manufacturing costs. One of the most popular ways to finance a project nowadays without involving banks and investors is through crowdfunding. What the backers get in return can either be a percentage of ownership of the company or a special edition product (sometimes even both).
A tree can be long, tall with vibrant green leaves and mandarins because it has strong roots and a system that can deliver its nutrients effectively without overloading or bottlenecks.
The simple structure is that a stronger entity supports a smaller one and then repeats itself. The energy to make a leaf grow will be less than the one used for growing a branch (or so I think so as I am not a biologist). And as we can assume, a branch is capable of supporting a certain amount of leaves and fruits and of delivering the nutrients and water from the roots. I think I have never seen a healthy tree with a branch with too many leaves and fruits to the point of damaging the rest of the tree because of overweight or the energy demand of the leaves and fruits is too much.
Just as a stable voltage source is necessary for any analogue circuit to work properly, a clock is required for any digital circuit to appropriate shift from one state to the next. In this short article, we will look into the design of an oscillator circuit to give your circuit’s MCU or any other digital IC the necessary clock to perform its functions.
This article, or actually, this personal essay so to speak, about the moral issue of working for defence contractors, is the first written composition in Developpa that falls into the “Create for good” category which is one of the cornerstones from this site. In contrast with other articles and resources published, posts from this category will have second to none technical content as we deal with more abstract ideas that fall more in the realm of ethics and philosophy rather than engineering. However, don’t be surprised if eventually an “Engineering Ethics” guide is released 😃. And as a last note, some people might get offended by what I have to say while others will actually feel identified and supported. That’s OK, is just the nature of these types of articles and I am not concerned about speaking my mind off.
A device’s power source and power management are one of the most important parts of any electronic product. After all, without a stable voltage source that can supply enough current for the circuit to work properly, there is no life. In the last decade, there has been an exponential increase of electronic products that have a battery embedded into them. So the need of knowing the different battery types so you can select the correct one for your application is required more than ever.
What is the worst it can happen? It’s a good question to ask when you are taking a decision. So you imagine yourself going through the worst situation caused by the worst decision you can make and decide if you can go through it or not. Or maybe you need more factual data than just a thought experiment, so you go, do it and find out that everything is fine and you were over exaggerating the consequences. But were you?
Do you know what a sustainable electronic product is? You probably already have an idea but not a well defined concept. But that’s OK, it turns out that it is not either a simple or well established definition in the electronics world. After all, as developers and designers our main focus, as we’ve been taught both at work and at university is to focus on the product specifications and characteristics itself, not how its components, performance, and end of life affects the environment and other people (unless you are actually designing a product with sustainability in mind from the beginning).
No, I am not talking about jumping into the wilderness, visiting an old European city or using Google Maps to get to your destination. Actually, the correct analogy would be more like going to a giant mall and having a map showing where the different shops, staircases and lifts interconnect the different floors. What I am referring to is a very powerful and simple tool which is normally overlooked by more analytical and less visual people, I am talking about our device map or more commonly known as a circuit block diagram.