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**ESP8266 Module Test** ESP8266-01s Packaging Diagram: ESP8266 and Single Chip Connection: ESP: Single-chip computer UTXD RXD GND GND CH_PD(EN) (works for high level modules). GPIO2 must be connected to a high level (internal has been r ...

brief introduction Use SpringBoot to automatically assemble and simplify the docking of Alibaba cloud SMS. A small tool, welcome to use and Star support, if you encounter problems during use, you can raise Issue, I will try my best to improve the Starter. Version basis aliyun-java-sdk-core:4.1.0 How to use Maven <dependency> <grou ...

1. rem Foundation rem unit rem (root em) is a relative unit, similar to em. EM is the font size of the parent element, and the benchmark of rem is the font size of the html element. For example, if the root element (html) is set to font size = 12px and the non root element is set to width:2rem, then ...

ROS speech recognition control robot (2) Article directory ROS speech recognition control robot (2) Create Ros package control logic Control the little turtle by writing instructions Voice to text Create Ros package In the previous section, the voice to text is implemented. The content of ...

Part of original text from: https://blog.csdn.net/larva_s/article/details/87532195 1. Lottery demand The prize is extracted according to the probability of prize configuration, in which the total probability is not necessarily 1. At this time, the prize is extracted according to the weight. 2. implementation 2.1 idea: interval Section ...

1. Configuration related 1.1 AbstractChannelSecurityConfig Abstract class encapsulating authentication logic for Http pages ApplyPasswordAuthentication Config sets the default form login authorization authentication route for HttpSecurity, and imoocAuthentication SuccessHandler, imoocAuthentication ...

At the end of last semester, the subject is led lattice billboard, and the requirements at that time are as follows: (1) LED dot matrix billboard with different characters; (2) Press the key to switch between different display effects (such as flashing, static, pan, etc.); (3) Press the key to switch be ...

Origin of note learning: Top 100 projects of Duyi education Web front end Interaction: do an operation on the page, etc., and then it returns a feedback Binding events Note: an event can only be bound to one processing function, which is basically equivalent to being written in html between lines Namely ...

Blue bridge: the price of perfection subject Problem description Palindrome string is a special string, which is read from left to right and right to left. Bruce Lee thinks the palindrome string is perfect. Now I will give you a string, which is not necessarily palindrome. Please calculate the minim ...

TouchAction is an auxiliary class of AppiumDriver that focuses on gesture operations such as sliding, long press, dragging, and so on. The principle is to put a series of actions in a chain and send them to the server. After the server accepts the chain, it parses the actions and executes t ...