The delay() function in Arduino is not just overused, but almost always used the wrong way. Let’s see an example and how to schedule simple tasks the correct way! Update A follow-up video is added with a ton of details, at the end of the post! How delay() works? The delay() waits for some given …
For God’s sake, SMD parts are the norm since the fall of the Berlin wall, yet many people still boast about their excellent resistor-reading skills, like it’s 1920. Yes, it was invented over 100 years ago! Yes, they are used for breadboard tinkering for obvious reasons, but let me show You to this magical new …
Everyone has their own needs and every lab is different. Home chemists must have a frigde and a ton of glassware. No metalworking shop is complete without a hammer. And no one can think about an electronics lab without a soldering iron. However, the available tools vary based on the user’s experience and interests. Not …
Electronics home lab essential tools – ESD protection Read More »
The technological singularity—or simply the singularity[1]—is a hypothetical future point in time at which technological growth becomes uncontrollable and irreversible, resulting in unforeseeable changes to human civilization. This is one of the many definitions of singularity, but they have something in common: something surpassed all current human control or understanding. And it already happened, multiple times, so don’t be so …
Save the date! 2023. March 25. 8:00 PM CET – the new Embedded course will launch on YouTube, click here to go to the event, or here to the Facebook event page. This was originally planned as a regular course, but because Arduino day is so near, the course will be held on YouTube first. …
Free online course: Embedded development with Arduino Read More »
My kids code PEP 8 compliant, therefore they do Clean Code! Someone really dumb This is an actual quote from a teacher. Even hobbyists should know how to write proper code, but it’s rarely taught. When I asked a professor about “how to write good programs”, his answer was “Just look at other people’s code.”, …
Basic programmer mistakes: Clean Code != PEP 8 – learn the difference Read More »
If we need to print the current time and date, we can choose from pretty easy and fast solutions, while it’s still possible to fine-tune every aspect. Just print the current time! Let’s start with getting the current time. When you run your Python program, you can ask the operating system about the date and …
You don’t want to use the usual microUSB as the power connector in your design and want to use the new standard USB-C, but USB power delivery is complicated, the C connector has extra pins and you don’t know what to do with them. The quick answer: 5.1kΩ ±20% pull-down resistors to the ground on …
“Just buy a tool with a cord!” Like it was THAT easy! Battery-powered devices can be a convenience or necessity too. It’s easier to operate a screwdriver or drill that runs on battery, but if you are in the middle of nowhere and no power outlet in sight, a blackout happened, the electrician will only …
Battery sizing – how big is enough? Get the best! Read More »
Symptoms You just bought a new aftermarket, cheap Arduino. “What a good deal! Less than $10 for an Uno, and a Nano is cheaper than $5, while an original Uno costs €24!” But as soon as you try to upload a new project, something goes wrong: the upload fails! The power LED is on and …
