Alkenes, as one of the core products in petrochemicals, are widely used in fields such as pharmaceuticals, materials, and chemicals. Alkenes play a key bridging role in medicinal chemistry, allowing for numerous transformations as needed. Among them, the well-known hydroboration reaction can achieve the transformation of alkenes to boronate esters. This issue will present several … Read more
1 Add Reagents To a mixture (suspension / solution / slurry) of compound 12 (487 mg, 1 mmol) and o-phenylenediamine (948 mg, 6 mmol) in CH2Cl2 (15 ml) being cooled to 0℃ was added the DCC (226 mg, 1.1 mmol). Anhydrous lithium iodide (1.38 g, 10.3 mmol) was added in five portions (dropwise / in … Read more
This article summarizes the latest fundamentals of companies and industries, and does not recommend buying or selling stocks at the current time. Investing carries risks, and caution is advised. Exploring Robotics The underlying long-term logic of robotics: Any new technology must have a physical application. In the internet era, Apple benefited the most, connecting products … Read more
Click on the “Fruit Little Master” above, select “Top/Star Official Account“ Practical Benefits Delivered First-Hand! Abstract: The commonly used chip for Arduino development boards is the AVR microcontroller series produced by Atmel. The most common is the ATmega328P, widely used in the Arduino Uno development board. Developing AVR microcontrollers on the Arduino platform is very … Read more
Some images are sourced from the following link for downloading this model: https://grabcad.com/library/arduino-braccio-robotic-arm-1 Follow the WeChat public account “Mechanical Drawing Dog” to get more related resources. Note: This article is just a collection of images for appreciation. If you need to share, please comply with the “Disclaimer” in the homepage of this public account under … Read more
Some image sources and the URL to download this model are as follows: https://grabcad.com/library/arduino-cleaner-bot-room-mapping-1 Follow the WeChat public account “Mechanical Blueprint Dog” to get more related resources. Notes: This article is only a collection of images for appreciation. If you need to share, please comply with the disclaimer in the “More Blueprints” section on the … Read more
Previously, the author introduced how a maker (Samy Kamkar) from abroad used the Teensy development board disguised as a USB flash drive to tamper with MacOS X’s DNS settings, allowing users to fall into phishing websites. Now Samy has brought a new “thing”; this time, Arduino is disguised inside a USB charger. This device can … Read more
Recently, I saw a very interesting crowdfunding project on Kickstarter, ABC: Basic Connections – The Essential Book for Makers. I believe this is an essential guide for every maker who dabbles in Arduino electronic kits. The “show-off” aspect I refer to here is not about how technically advanced this guide is, enabling you to show … Read more
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MAKER：HarshadB9/ Translator: Qu Wujin The recent weather is perfect for outdoor activities! Let’s DIY a bicycle digital speedometer and take your beloved bike out for a ride! This speedometer can display the bicycle’s mileage, speed, and real-time acceleration, all controlled by an Arduino Nano! Let’s take a look at how to make it! Materials List … Read more