Latest Posts by lokarprincipal - Page 2

Your guide to being productive at work or school:

So, in this post, I am going to tell you how to be productive when it comes to work or school. So, let me tell you how to have a productive day.

Make a plan. Schedule your day the night before and make a to-do list. You can use Google Calendar or Apple Calendar. Planning saves you so much time because we often think, "Should we do this or that?" and we get overwhelmed and end up feeling anxious and doing nothing.

Make a realistic plan. No, you can't work 12 hours a day; that's unrealistic. Instead, set a realistic to-do list and schedule.

Build a system. When I say build a system, I mean turn on your work mode. Set aside a different space for work or go to the library. Get a caffeinated drink or water. Turn off your phone or at least notifications and put it in another room. Arrange everything you need to study or work.

Take a break. Ideally, when you cross a task off your to-do list, then you should take a break, or if you are feeling overwhelmed, then take a break.

You don't want to work or study, but you have to, or else you will fail? Then just open your notes and keep them in front of you and challenge yourself to sit for 5 minutes in front of them. You'll probably start reading them.

Motivation is important, but not like you saw a TikTok of some productive guru blabbering things. No. Motivation and work have this beautiful connection. The more work you do, the more tasks you cross off, the more motivated you are, like "OMG, I completed one lecture, now I can even revise notes of it."

The toughest part is starting. If you start working and studying, then everything gets a little easier from there.

Productivity looks different for different people. You did your homework? Wow, that's amazing. She did her homework, did additional reading, and read the textbook for the future lecture, then that's productive too. But by no means should you feel bad about yourself.

Stop obsessing over productivity. When you obsess over this, then your brain thinks it's a real big challenge and gets scared, makes it a bigger problem, gets overwhelmed, and then you scroll over all productivity tips on Reddit, YouTube, TikTok, and Tumblr.

Hope you like this post and it helped you.

Introduction to several common antenna for wireless communications

Antennas are crucial for wireless modules. Suitable antennas can optimize the communication network and increase the range and reliability of communication. The selection of antennas has a great impact on the data communication of final module . An inappropriate antenna will lead to a decrease in communication quality. For different market applications, the material, placement method, and performance of the antenna are also very different. The following is a brief example of several antennas from NiceRF Company。

Rod Antenna: The rod antenna is a common form of antenna. Its principle is based on placing a conductor rod in a magnetic field to achieve signal reception and transmission. It is widely used in wireless communication systems.

Sucker Antenna

The sucker antenna, also known as a suction antenna or suction antenna scanner, is a special type of antenna. It typically consists of a suction cup and an antenna, where the suction cup can secure the antenna to an object or surface, thereby achieving better signal reception and transmission.

PCB Antenna

PCB antenna is an antenna form directly printed on a PCB (Printed Circuit Board). This type of antenna plays an increasingly important role in modern wireless communication devices, especially in mobile devices, IoT devices, and wireless sensor networks. Due to its compact size, lightweight, and low cost, it has been widely used.

FPC Antenna

FPC (Flexible Printed Circuit) antenna is a flexible antenna made of flexible materials, suitable for scenarios where the antenna needs to bend or conform to specific shapes. Its advantages include high flexibility, the ability to conform to different surface shapes, and it is often used in devices with special shape requirements, such as wearable devices or uniquely shaped sensors.

Spring Antenna

The spring antenna is a type of helical antenna. Its primary function is to radiate and receive radio waves. Due to its low cost, small size, ease of installation, good VSWR (Voltage Standing Wave Ratio) performance, resistance to vibration and aging, the spring antenna is increasingly used in the field of radio communication.

Yagi Antenna

The Yagi antenna consists of an active element (usually a folded dipole), a passive reflector, and several passive directors arranged in parallel. Invented in the 1920s by Hidetsugu Yagi and Shintaro Uda of Tohoku University in Japan, it is known as the "Yagi-Uda antenna" or simply "Yagi antenna."

IPEX Antenna

IPEX antenna is a new high-performance antenna with high gain and frequency response. It can achieve optimal performance in different frequency bands and environments, including both indoor and outdoor settings. The IPEX antenna is widely used in mobile communications, smart homes, the Internet of Things (IoT), and vehicle networking.

GPS Antenna

GPS antenna is used to receive satellite signals for positioning or navigation. Receiving these signals requires antenna. GPS satellite signals are divided into L1 and L2, with frequencies of 1575.42 MHz and 1228 MHz, respectively. L1 is an open civilian signal with circular polarization and a signal strength of around -166 dBW, which is relatively weak. These characteristics necessitate a specialized antenna for receiving GPS signals.

Antenna Usage Considerations: The following principles should be followed when using the antenna to ensure the best communication distance of the module: 1.Avoid placing the antenna close to the ground , and keep it away from obstacles as far as possible. 2.If using sucker antenna, try to keep the lead wire straight and ensure the suction cup base is attached to a metal surface.

For details, please click：https://www.nicerf.com/products/ Or click：https://nicerf.en.alibaba.com/productlist.html?spm=a2700.shop_index.88.4.1fec2b006JKUsd For consultation, please contact NiceRF (Email: sales@nicerf.com).

my trick for getting through grad school is learning to navigate the quadrants with all their nuances

Tá liberado!!!

Characteristics and Applications of LoRa Spread Spectrum Modulation SoC Module

LoRa spread spectrum modulation technology, known for its low power consumption and long-distance transmission capabilities, excels in long-range wireless communication. So, what kind of sparks will this modulation technology create when applied to SOC modules? Let's briefly illustrate this with the LoRa-STM32WLE5 LoRa spread spectrum modulation SOC module developed by NiceRF.

The LoRa-STM32WLE5 wireless module  is SOC wireless module the latest  developed by NiceRF Wireless. The LoRa-STM32WLE5 adopts ST's STM32WLE5 chip as the main chip, equipped with a high-performance Arm Cortex-M4 32-bit RISC core, operating at a frequency of up to 48 MHz. supporting 256KB flash memory and 64KB operational memory. This module ensures ample storage and processing capabilities. Additionally, the module is equipped with an industrial-grade crystal oscillator, ensuring stable operation in various working environments. 

In terms of communication technology, the LoRa-STM32WLE5  adopts  LoRa spread spectrum modulation, which features low power consumption and long-distance transmission. This makes the module perform exceptionally well in ultra-long-range wireless communication. It has a high receiving sensitivity of up to -141dBm@BW=125KHz and adjustable transmission power, with a maximum of 22dBm, allowing for transmission distances of over 5000 meters. This characteristic offers extensive application possibilities in fields such as security systems, smart agriculture, and industrial manufacturing. 

In addition to its technical features, the LoRa-STM32WLE5  also has  advantages such as low power consumption, secure encryption, and multiple interface types. Its sleep current is less than 1uA, and its receive current is less than 8mA, making it suitable for scenarios requiring long battery life and high energy efficiency. Additionally, it supports 256-bit hardware encryption and PCROP read/write protection, ensuring data security and integrity. The support for various interface types, including UART, SPI, I2C, GPIO, and ADC, enables it to meet the interface needs of different application scenarios, offering excellent scalability and flexibility.

In terms of applications, the LoRa-STM32WLE5 wireless module can be widely used in security systems, smart agriculture, industrial manufacturing, and smart home scenarios.

For example: in security systems, it can be used for remote monitoring and alarm systems; in smart agriculture, it can be utilized for agricultural environment monitoring and automated irrigation systems;in industrial manufacturing, it can be applied to equipment monitoring and remote control systems; and in smart homes, it can be used for smart door locks and environmental monitoring.

In the future, with the development of IoT technology and the proliferation of intelligent applications, the LoRa-STM32WLE5 wireless module is expected to demonstrate its value in more fields. For instance, in urban smart construction, it can be applied to smart city traffic systems and intelligent energy management. In the industrial IoT sector, it can be used for remote monitoring of industrial equipment and intelligent production lines. Additionally, as technology continues to advance and costs continue to decrease, the LoRa-STM32WLE5 wireless module will become more widespread and mature, bringing more convenience and possibilities to people's lives. 

For details, please click：https://www.nicerf.com/products/ Or click：https://nicerf.en.alibaba.com/productlist.html?spm=a2700.shop_index.88.4.1fec2b006JKUsd For consultation, please contact NiceRF (Email: sales@nicerf.com).

how to stay motivated long-term

trust, me i know that long-term motivation and consistency is hard. long-term motivation might be difficult to maintain, but there are effective techniques to help you stay focused and determined. whether you're seeking personal ambitions, academic achievements, or professional success, here are some strategies to help encourage motivation:

understand the reason behind your goal ☆ does your goal contribute to personal growth or meaningful relationships? ☆ how does your goal impact others? ☆ is your goal meaningful to you? if your goal lacks meaning, it may be hard to maintain motivation.

positive and negative motivation motivation can come from different places ☆ positive motivation: the desire to experience pleasure ☆ negative motivation: the desire to avoid something (an outcome) both types of motivation have their place, so learn to recognise what type fits in where. (post on this coming soon)

set up systems use your initial motivation to set up structures: ☆ create routines, systems and habits that help you towards your goal even when your motivation fluctuates ☆ when your emotions wane, rely on these systems and disciplines to maintain momentum

break down goals ☆ tackle one goal at a time to avoid feeling overwhelmed ☆ set achievable milestones and celebrate each step forward ☆ keep the momentum going by focusing on manageable tasks

validate good work ☆ give yourself a little reward, or thank yourself, for completing hard tasks ☆ this reinforces motivation and encourages effort

remember--motivation isn't in a constant state, it ebbs and flows. these small tips will help to stay motivated. i'm going to provide more information in upcoming posts, and i will link them here once they are published.

luck on your journey ❤️

By LabradoriteKing on Pinterest

How to learn a language the fun (and easy) way:

1 - Watch native films/dramas

This is not only fun, but will also help your ears adjust to the speed and tones of native speakers. You will start to differentiate individual words and sounds. This is not a voice over or language teacher speaking - these are natives who speak rapid-fire, and with lots of slang thrown in. You'll also learn about the country's culture, etiquette rules and general way of life.

Matt vs Japan (YouTube) learnt Japanese through watching anime. You can also learn through native resources like manga. And this is how babies learn naturally - through an endless stream of language input. Eventually they recognise word, intonation and grammar patterns.

For free Korean/Japanese/Chinese dramas check out Viki, or you can find a variety of languages on Netflix, or even YouTube (good for Russian ones!)

2 - Find a translated version of books/films

If you know a book series by heart, find the translated version and go through them slowly. Since you already know the plot, you'll associate new words with their meanings much faster. You can also do this with films you've watched repeatedly, like the Disney classics.

3 - Chat with natives

Use apps like HelloTalk, Tandem or Hilokal to chat (for free!) with native speakers around the world. Honestly, this is the fastest way to learn, especially because they use everyday expressions/slang. It's also the most fun way because you're essentially just making foreign friends.

4 - Browse the internet in your TL

YouTube, twitter, Tumblr, forums, whatever. Google a recipe in Spanish. Check the news in German. Create a YouTube account specifically for Arabic. You can also make Spotify playlists in your TL, and listen to them instead of your usual native ones.

5 - Create content

Compose a song

Keep a diary

Start a blog

Create a YouTube channel

Write a passionate essay

Write a short story

...in your target language.

6 - Latch onto something cultural you love

Fall in love with Russian literature and start wading your way through Crime and Punishment. Get obsessed with Hindi Bollywood movies, or Italian opera, or Japanese anime/manga. Research into your TL country's history in that foreign language. Binge Korean dramas or kpop idol interviews. Anything, as long as you're passionate about it.

Hope that helps, and let me know if you have any other ideas :)

I’m not lying when I say I had a very vivid nightmare when I was 5 that came very close to this video that instagram shoved in my face

15 Productivity Hacks 💻💭📝💡

Use the Pomodoro Method. Work in focused intervals (typically 25 minutes) followed by a short break. This helps you maintain high levels of focus and gives regular breaks to rest.

If a something takes less than two minutes, do it immediately.

Schedule specific blocks of time for specific activities. This helps in dedicating focus to one task at a time.

Group similar tasks together and tackle them in one go. For example, respond to all emails at once rather than sporadically throughout the day.

Contrary to popular belief, multitasking can reduce productivity. Focus on one task at a time for better efficiency.

Use apps and tools like Trello, Asana, or Notion to manage tasks and projects.

Use the Eisenhower Box or the ABCD method to categorize tasks based on their urgency and importance.

Keep your workspace tidy. A clean workspace can enhance focus and reduce distractions.

Even if one doesn’t exist, setting a deadline can create a sense of urgency.

Large tasks can be overwhelming. Break them into smaller steps to make them more manageable.

Aim for excellence, not perfection. Sometimes waiting for something to be perfect can lead to procrastination.

If someone else can do a task, delegate it. This allows you to focus on tasks that only you can do.

Working for long hours without a break can lead to burnout. Short, regular breaks can help maintain high levels of focus.

Use apps to play background music/noise that enhances concentration or block all notifications to prevent you from checking your phone.

At the end of the week, review what you’ve accomplished and what needs to be adjusted for the coming days.

Todos bons conselhos.

10 Ways to Simplify Life

1. Don’t try to read other peoples’ minds and don’t expect others to be able to read yours. Communicate if it is important to you.

2. Don’t expect to be friends with everyone. We all are different – and we all like different things. Instead, invest your time in a few good friends. That’s all you really need to feel happy and fulfilled.

3. Create a budget and live within your means. Accruing debt will only cause you to feel stressed.

4. Get rid of the monster of jealousy, and only compare yourself with yourself.

5. Organize your clutter and get rid of some stuff. It will leave you feeling calmer, and will save a lot of time.

6. Stay on the sidelines and don’t get drawn into pointless dramas in other peoples’ lives (unless it’s a crisis – and you know you ought to help).

7. Finish what you’ve started, and then do something else.

8. Treat every person you meet with respect, and err on the side of being patient and kind.

9. Accept there are things that you can’t change or control, and focus on those things that you can change or control.

10. Don’t be too proud to apologise. Admit that you were wrong, say you’re sorry, and move on.

É uma velharia mesmo.

Ever seen a neofetch on REAL HARDWARE?

Good more knowledge.

Sewing Machines & Planned Obsolescence

I've got these two sewing machines, made about 100 years apart. An old treadle machine from around 1920-1930, that I pulled out of the trash on a rainy day, and a new Brother sewing machine from around 2020.

I've always known planned obsolescence was a thing, but I never knew just how insidious it was till I started looking at these two side by side.

I wasn't feeling hopeful at first that I'd actually be able to fix the old one, I found it in the trash at 2 am in a thunderstorm. It was rusty, dusty, soggy, squeaky, missing parts, and 100 years old.

How do you even find specialized parts 100 years later? Well, easily, it turns out. The manufacturers at the time didn't just make parts backwards compatible to be consistent across the years, but also interchangeable across brands! Imagine that today, being able to grab a part from an old iPhone to fix your Android.

Anyway, 6 months into having them both, I can confidently say that my busted up trash machine is far better than my new one, or any consumer-grade sewing machine on the market.

Old Machine Guts

The old machine? Can sew through a pile of leather thicker than my fingers like it's nothing. (it's actually terrifying and I treat it like a power tool - I'll never sew drunk on that thing because I'm genuinely afraid it'd sew through a finger!) At high speeds, it's well balanced and doesn't shake. The parts are all metal, attached by standard flathead screws, designed to be simple and strong, and easily reachable behind large access doors. The tools I need to work on it? A screwdriver and oil. Lost my screwdriver? That's OK, a knife works too.

New Machine Guts

The new machine's skipping stitches now that the plastic parts are starting to wear out. It's always throwing software errors, and it damn near shakes itself apart at top speed. Look at it's innards - I could barely fit a boriscope camera that's about as thick as spaghetti in there let alone my fingers. Very little is attached with standard screws.

And it's infuriating. I'm an engineer - there's no damn reason to make high-wear parts out of plastic. Or put them in places they can't be reached to replace. There's no reason to make your mechanism so unbalanced it's reaching the point of failure before reaching it's own design speed. (Oh yeah there is, it's corporate greed)

100 years, and your standard home sewing machine has gone from a beast of a machine that can be pulled out of the literal waterlogged trash and repaired - to a machine that eats itself if you sew anything but delicate fast-fashion fabrics that are also designed to fall apart in a few years.

Looking for something modern built to the standard that was set 100 years ago? I'd be looking at industrial machines that are going for thousands of dollars... Used on craigslist. I don't even want to know what they'd cost new.

We have the technology and knowledge to manufacture "old" sewing machines still. Hell, even better, sewing machines with the mechanical design quality of the old ones, but with more modern features. It would be so easy - at a technical level to start building things well again. Hell, it's easier to fabricate something sturdy than engineer something to fail at just the right time. (I have half a mind to see if any of my meche friends with machine shops want to help me fabricate an actually good modern machine lol)

We need to push for right-to-repair laws, and legislation against planned obsolescence. Because it's honestly shocking how corporate greed has downright sabotaged good design. They're selling us utter shit, and expecting us to come back for more every financial quarter? I'm over it.

Lighting striking atop Acatenango volcano in Guatemala

Source