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Изходен канал @clockstackwheels · Post #362 · 29.05

На днях мне пришёл крутой девайс — Flipper Zero. Flipper Zero — это электронный гаджет, который запустил на Kickstarter два года назад русский специалист по компьютерной безопасности Павел Жовнер. Кампания была супер успешна и собрала почти $5 млн! Об этом даже писали в Forbes, а автора приглашали на разные интервью и айти подкасты. Скорее всего, если вы айтишник, то слышали о проекте, а может даже купили себе Flipper. В ходе кампании проект столкнулся с чудовищными сложностями. Пандемия и остановки производств. Кризис микрочипов. Дефекты сборки. Ребятам приходилось несколько раз менять сборочные линии, перепроектировать плату, искать для компонентов аналоги. Это при том, что вообще сам Кикстартер официально не работает с россиянами, а с китайцами по многочисленным рассказам не так просто договориться до подходящего уровня качества, если заказ не типовой. Отсюда много задержек, первая крупная партия была выпущена, кажется, на год позже, чем заявлено. Но даже в более мягких условиях очень многие проекты не выживают, не справляются с финансовым менеджментом, не просчитывают риски. А тут авторы очень круто везде среагировали и даже в некотором смысле вышли за границы возможного, чтобы выполнить свои обязательства. Моё уважение. Базово Flipper это небольшой микропроцессор с оснасткой в виде радиомодулей и других средств беспроводной коммуникации. Глобально в этом нет ничего принципиально нового, что-то подобное и раньше мог собрать любой фанат электроники. Но есть несколько нюансов, которые делают устройство крайне любопытным. Во-первых, кампания велась образцово. Привлекательная затравка и маркетинг «Flipper это тамагочи для хакеров!», регулярные обновления с подробными интересными статьями на радиолюбительские и программистские темы. По этой кампании можно учиться как в принципе презентовать и продвигать электронику на крауд-площадках, особенно в условиях задержек и кризисов. Во-вторых, качество сборки и компоненты. Здесь лучшее железо по соотношению цена/функциональность, его подбирали люди, которые очень глубоко шарят в теме. Отличный UI/UX и эргономика. Оптимизированное энергопотребление. В-третьих, что, наверное, самое важное: открытый исходный код прошивки и акцент на комьюнити, где энтузиасты могут писать всякие разные приложения. На борту две RFID антенны на разные частоты, ИК-приёмопередатчик, субгигагерцовый радиопередатчик, контакты для iButton (у нас это называют "магнитный ключ" или "таблетка", типа как от домофонов), а также многофункциональные порты ввода-вывода GPIO. Из коробки устройство может, например, скопировать и повторить незашифрованный сигнал управления. Конечно, автомобиль вы так не откроете (странно было бы, если бы могли), но, например, на своих умных шторах я уже проверил: Flipper может записать сигнал от пульта штор на частоте 433МГц, а потом воспроизвести его, и шторы открываются! Ещё можно сохранять 125 кГц RFID электронные карты доступа и брелоки. У меня такой, например, от гаража. Что касается высокочастотного RFID (домофоны в новых домах, в паркингах), то есть нюансы, об этом я расскажу попозже. Прямо сейчас каких-то фантастических функций всё же нет. Думаю, маркетинг частично сыграл злую шутку: некоторые купившие жалуются, типа, где тут кнопка "взломать всё", как в игре Watch Dogs? Даже при росте софтварной оснастки нужна определённая техническая грамотность, чтобы понять, что и как можно делать. Первые устройства только недавно поступили людям на руки, комьюнити разгоняется, документация пишется. Ещё нет ни SDK, ни толком хороших примеров. Персонально я считаю серьёзным недостатком, что в качестве места для сообщества выбран Discord: он совершенно не подходит на роль базы знаний, на закреплённых сообщениях далеко не уедешь. Но потенциал у вещицы достаточно большой, как мне кажется. Буду писать иногда о своих экспериментах. #gadgets#dev

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Намерени 23 подобни публикации

Търсене: #questions

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English With Natives*

@sirJimmy · Post #28624 · 11.03.2022 г., 07:53

Q1. How did societies before the 20th century deal with the problem of poverty among their citizens? A. The poor were put in jail. B. The state took care of the basic needs of the poor. C. Religious groups and private charities took care of the basic needs of the poor. D. The poor were left with the help they got from their family. Q2. What is a means-tested welfare program? A. A welfare program aimed at the rich. B. A welfare program aimed at all citizens in a society. C. A welfare program aimed at gifted school children. D. A welfare program provided by government aimed at people below a certain income leve Q3. What is the meaning of the concept welfare trap? A. A trap caused by means-tested welfare programs. B. A trap set up to catch burglars. C. A trap caused by climate change. D. A trap full of welfare Q4. Numerous economists and thinkers have championed the idea of a universal basic income. What is a universal basic income? A. A basic income aimed at the poor. B. A basic income aimed at all members of a society. C. A minimum wage for all workers. D. A minimum wage for all mothers with small children. Q5. Does a universal basic income exist? A. A universal basic income exists in the United States. B. A universal basic income exists in the Scandinavian countries. C. A universal basic income has been tried out some places on a limited scale. D. A universal basic income has never existed anywhere. Q6. Why do some people end up in poverty? Q7. Why can means tested welfare programs lead the recipients into a welfare trap? Q8. A universal basic income is a fixed benefit to all members of a society. What is the advantage of basic income as a means to combat poverty, and what do you see as potential disadvantages? #Questions #Listening

English With Natives*

@sirjimmy · Post #30962 · 07.02.2024 г., 05:45

Listening questions 1. What are neurons ? Answer based on the first 30 seconds of the podcast. 2. Brain is the main place of neurons. True False 3. What are the rules of neurons in our body? 4. Complete the below statement. In 1873, Italian physician Camillo Golgi found a way to ... 5. What are synapses and what makes them stronger? 6. Most neurons in our body regenerate at intervals and then die. True False 7. Fill the blankets with correct words. if you never left your home again, you’d likely lose neurons in the brain ... involved in spatial .... 8. What is neurogenesis? 9. In the podcast we heard the term "electrical signals". What is the connection between it and neurons? 10. Transcribe from the below words to the end of podcast. Private companies are .... #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirjimmy · Post #30632 · 24.08.2023 г., 13:25

Q1. A person's confidence level is impacted by: A. Their genes B. The social pressures in their environment C. The risks they choose to take D. Their responses to challenges and setbacks E. All of the above Q2. This statement is an example of a "fixed mindset": A. "It doesn't matter how hard I try; there are some things that I will never be able to learn" B. "With hard work and a lot of practice, I can learn anything" Q3. This statement is an example of a "growth mindset": A. "I wasn't born with natural talent for sports, so I'll never be good at them, and this is why I don't play them" B. "Learning and playing sports that are challenging to me, even when they are difficult, helps to develop my talent" Q4 . The best way to increase your confidence after you have failed at something is to: A. Immediately quit. Obviously you'll never be good at it, so you should just give up B. Find someone else to blame... it's best if the failure wasn't your fault C. Acknowledge your failure, figure out what went wrong, think of different strategies or get some advice on how to be more successful, then try again D. Switch to doing something you know you are good at, and then stick to doing only the things that you are certain you will find success Q5. Some quick ways to feel more confident before a challenge are: A. Give yourself a pep talk B. Strike a power pose C. Imagine yourself succeeding at first D. None of the above E. All of the above Q6. In what ways does feeling confident help a person succeed in their every day life? Q7. It seems counterintuitive that persistence in response to failure could actually increase a person's confidence level. Explain why the opposite is true. Q8. Give some examples of things people might say which indicate they have a fixed mindset? How would you correct these statements to help them develop a growth mindset? environment #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #30286 · 04.05.2023 г., 14:30

#Listening #Teamjimmy @Sirjimmy #Questions Time management is something that we all ... with. Here are six tips that I found really useful ... ... 60 seconds. Let's go. 1. I don't have time is a myth. If we don't have time for something, it means it's just not enough of a ... . 2. Set a daily highlight. This is the one and only thing that we absolutely to ... today. 3. Time block the daily highlight. Once we figure out what thing that we're gonna do today, we should put a block ... ... ..., we're actually gonna do the thing. 4. Protect your time. It's ... ... easy to say yes ... absolutely everything. So block your time in your calendar for important things like self care and taking breaks and all that stuff and protect it with your life. 5. Understand Parkinson’s law. That work always ... to fill the time that we ... to it. So if we just give ourselves less time to thing that we want to do, we'll probably get it done in that time. It'll probably be the same quality as .. spent twice as long as it. 6. Automate your scheduling. It's an absolutely ... trying to get people's calendars to ... when arranging a call or meeting. So use an app like calendly or woren to make that a lot easier. For more tips on exactly how to manage your time and how I personally do it, check out this video link in the video description. Thanks for watching and see you later.

English With Natives*

@sirJimmy · Post #30217 · 15.04.2023 г., 13:54

1. What are the benefits of exercise for our bodies and minds? 2. During the exercise, our brains release a number of chemicals. Which one mentioned in the video and what are its rules? 3. What are the specific pros of joining a team? 4. Explain about the benefits of participating in a school team? 5. What do you think about this statement "Even if I can't do something today, I can improve myself through practice and achieve it eventually." 6. The lessons we can learn from failure are? 7. Transcribe the last 24 seconds of the video. Regards 🌹🌹 #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #30090 · 09.03.2023 г., 11:16

Q1. Who is in charge of making dictionaries? A. Teachers B. Lexicographers C. Politicians D. Writers Q2. When is a dictionary finished being written? A. Never B. Only when a rival dictionary is published C. On December 31 D. Until their next edition Q3. How many words does the English language have? A. More than 20,000 B. More than 50,000 C. More than 200,000 D. Almost 1,000,000 Q4. Where was Samuel Johnson from? A. France B. England C. Spain D. United States Q5. Who invented language? A. God B. The Phoenicians C. Humans D. Google Q6. Which language doesn’t change? A. dead language B. Portuguese C. Baby talk D. Mandarin Q7. Are dictionaries objective compilations of words? Q8. Do all languages change in the same way? Q9. Do dictionaries control the way language changes or do they accelerate it? Q10. Transcribe from 4.20 to 4.44. #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #30069 · 02.03.2023 г., 14:40

Q1. What is the average amount of time per day that people spend looking at their phones? A. 3.6 hours B. 4.7 hours C. 1.4 hours D. 5.5 hours Q2. Time spent in front of screens had led to an increase in cases of: A. Back tension B. Arthritis C. Depression D. Myopia Q3. What is a compulsion loop? Q4. What is nomophobia? Q5. How do phones interfere with sleep? #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #30023 · 16.02.2023 г., 07:15

1. According to science, what are the basic emotions? A. joy B. sadness C. anger D. all of the above 2. Within the human brain, gratitude positively correlated with activity in brain areas associated with A. anger B. fairness C. value judgement D. both b and c 3. Keeping a gratitude journal can A. improve your sleep B. cause your hair to grow better C. increase your heart health D. both a and c 4. More oxytocin helps with A. creating social bonds B. circulation C. muscle control D. both b and c 5. Is it "the thought that counts?" Or should you express your gratitude differently? What do you think? 6. Stop for a moment and think! List three things you are grateful for right now! Explain why. 7. Who are you grateful for or to? Take a few minutes and write them a personal note. Consider delivering it. #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #29814 · 26.12.2022 г., 06:35

1. According to science, what are the basic emotions? A. joy B. sadness C. anger D. all of the above 2. Within the human brain, gratitude positively correlated with activity in brain areas associated with A. anger B. fairness C. value judgement D. both b and c 3. Keeping a gratitude journal can A. improve your sleep B. cause your hair to grow better C. increase your heart health D. both a and c 4. More oxytocin helps with A. creating social bonds B. circulation C. muscle control D. both b and c 5. Is it "the thought that counts?" Or should you express your gratitude differently? What do you think? 6. Stop for a moment and think! List three things you are grateful for right now! Explain why. 7. Who are you grateful for or to? Take a few minutes and write them a personal note. Consider delivering it. #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #29204 · 05.07.2022 г., 09:42

Q1. What does it mean when a word becomes "plural?" A. More than one B. A tail C. It is all alone Q2. How would you write more than one duck? A. duckes B. duckys C. ducks D. duckis Q3. Which combination of letters does NOT use the "-es" word tail?" A. -x B. -ch C. -th D. -sh Q4. How would you successfully write more than one glass? A. glasss B. glassis C. glasses D. glassus #Listening #Teamjimmy @Sirjimmy #Questions

English With Natives*

@sirJimmy · Post #29097 · 09.06.2022 г., 07:10

#Listening #Teamjimmy @Sirjimmy #Questions 1. They ... thinner slats, so more ... could ... through. 2. Most people think the sound of the bridge is meditative and angelic. T F 3. The golden gate gets its name from? 4. The bridge connects two areas. What are those areas? 5. Why it's unknown how many people worked at the time of bridge construction? 6. We're right now getting ... .... on the outer part of the bridge which is up .... . 7. What is the nickname for the ironworkers? 8. Subscribe from time interval 4 min 50 sec to 5 min of the podcast. 🍀🍀🍀🍀🌹🌹🌹🌹 Hope you see the golden gate bridge 🌉🌹But I prefer Karun Bridge❤️

English With Natives*

@sirJimmy · Post #29063 · 03.06.2022 г., 05:23

#Listening #Teamjimmy @Sirjimmy #Questions Time management is something that we all ... with. Here are six tips that I found really useful ... ... 60 seconds. Let's go. 1. I don't have time is a myth. If we don't have time for something, it means it's just not enough of a ... . 2. Set a daily highlight. This is the one and only thing that we absolutely to ... today. 3. Time block the daily highlight. Once we figure out what thing that we're gonna do today, we should put a block ... ... ..., we're actually gonna do the thing. 4. Protect your time. It's ... ... easy to say yes ... absolutely everything. So block your time in your calendar for important things like self care and taking breaks and all that stuff and protect it with your life. 5. Understand Parkinson’s law. That work always ... to fill the time that we ... to it. So if we just give ourselves less time to thing that we want to do, we'll probably get it done in that time. It'll probably be the same quality as .. spent twice as long as it. 6. Automate your scheduling. It's an absolutely ... trying to get people's calendars to ... when arranging a call or meeting. So use an app like calendly or woren to make that a lot easier. For more tips on exactly how to manage your time and how I personally do it, check out this video link in the video description. Thanks for watching and see you later.

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