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51 Single-chip computer-lcd1602 driver This paper describes and summarizes the driver of 51 single-chip computer external lcd1602. The clock circuit of 51 single-chip computer uses 12MHz crystal oscillation, P0 port external pull-up resistance is connected with LCD1602 data port D0-D7, P2.7 and LCD160 ...

1. Hill sorting 1.1 problems in simple insertion sorting Let's look at the possible problems with simple insertion sorting Array arr = {2,3,4,5,6,1} at this time, the number 1 to be inserted (minimum) is as follows: {2,3,4,5,6,6} {2,3,4,5,5,6} {2,3,4,4,5,6} {2,3,3,4,5,6} {2,2,3,4,5,6} {1,2,3,4,5,6} ...

                          . The linux kernel provides a complete 24 series EEPROM driver, which is located in the "kernel/drivers/misc" directory (at24.c), and can ...

Let's learn about the use of reduce in Java8 (7) - Stream. The bottom layer of parallel flow is the branch / merge framework. The core idea of the branch / merge framework is to split a large task into multiple subtasks, and then integrate the execution results of each subtask to return a final result. ForkJoinPool The core class of the branch ...

This note is excerpted from: https://www.cnblogs.com/PatrickLiu/p/7792973.html Record the learning process for future reference. I. Introduction Today, we are going to talk about the sixth pattern of structural design pattern - the sharing element pattern. First, from the name, the sharing element can be understood in this way - sharing "u ...

KNN overview k-nearest neighbor (KNN) algorithm is a basic classification and regression method. As a supervised classification algorithm, it is one of the simplest machine learning algorithms. As the name implies, the main idea of its algorithm is to determine its own category according to the ne ...

ThreadPoolExecutor Thread Pool Source Analysis White teeth want to say I haven't updated it for a long time, not because I didn't learn, but because I didn't know how to write it. At the same time, there was a voice telling me that public numbers are flying all over the world. There are more people writing public numbers than reading public nu ...

1, Stacks and queues Topic 1: using fixed size array to realize stack and queue Fixed size array implementation stack public class StackWithArray { private int[] array; private int index; //Point to the location to be placed public StackWithArray(int initialSize){ if(initialS ...

[intermediate project of niuke.com] lesson 4 registration, login and browsing security Catalog Article directory [intermediate project of niuke.com] lesson 4 registration, login and browsing security 1. registration 1.1 registration function: 1. User name validity detection 2. Password length ...

Executor thread pool for java Concurrent Programming 1 Thread-Multithread-Process a. Threads: Threads are an entity of a process and the basic unit for CPU scheduling and allocation. Threads are smaller than processes and can run independently.Threads themselves have little system resources and only ...