Echart polar coordinates, azimuth and distance diagram, icon symbol rotation and size, color gradient

Background: Participating in an interactive chart project, the customer had a need for polar coordinate comparison to display different types of indicator data in different directions and distances. Specifically, the attribute fields are: Source, distance, orientation, ID, rotation angle, size Let’s look at the renderings first: Technical points: Legend description: The distance is the radial […]

Explore Miniconda3: a simple and flexible Python environment and software package management tool

Miniconda3 installation and configuration notes Foreword Miniconda3 is a lightweight Anaconda distribution that provides a flexible and simplified way to manage Python environments and packages. This article will introduce how to install, configure and manage Miniconda3, as well as use the conda command to manage the environment and software packages. Article directory Miniconda3 installation and […]

22. W5100S/W5500+RP2040 Raspberry Pi Pico<SMTP Send Email>

Article directory 1 Introduction 2 Introduction 2.1 What is SMTP? 2.2 How does SMTP work? 2.3 SMTP, IMAP and POP3 2.4 SMTP application scenarios 3 WIZnet Ethernet chip 4 Overview and usage of SMTP email sending examples 4.1 Flowchart 4.2 Core preparation work 4.3 Connection method 4.4 Main code overview 4.5 Results demonstration 5 things […]

21. W5100S/W5500+RP2040 Raspberry Pi Pico<Host computer search and configuration device>

Article directory 1 Introduction 2. Related introduction 2.1 Brief description 2.2 Principle 2.3 Advantages 2.4 Application 3. WIZnet Ethernet chip 4. Host computer search and configuration test 4.1 Program flow chart 4.2 Test preparation 4.3 Connection method 4.4 Related code 4.5 Test phenomena 5. Precautions 6. Related links 1. Preface In the field of automation […]

24. W5100S/W5500+RP2040 Raspberry Pi Pico<PHY status mode control>

Article directory 1 Introduction 2. Related introduction 2.1 Brief description 2.2 Principle 2.3 Advantages & Applications 3. WIZnet Ethernet chip 4. PHY mode configuration test 4.1 Program flow chart 4.2 Test preparation 4.3 Connection method 4.4 Related code 4.5 Test phenomena 5. Precautions 6. Related links 1. Preface W5100S/W5500 not only supports automatic PHY auto-negotiation, […]

19. W5100S/W5500+RP2040 Raspberry Pi Pico<MQTT and MQTTX debugging example>

1. Preface With the rapid development of IoT technology, the MQTT (Message Queuing Telemetry Transport) protocol has become a widely used communication protocol. It is suitable for low-bandwidth, high-latency, and unreliable network communication between devices. W5500 is an embedded Ethernet controller that integrates a full hardware TCP/IP protocol stack and is also an industrial-grade Ethernet […]

18. W5100S/W5500+RP2040 Raspberry Pi Pico<SNMP Management Example>

Article directory 1 Introduction 2 Introduction 2.1 What is SNMP? 2.2 Advantages of SNMP 2.3 How SNMP works 2.4 SNMP application scenarios 3 WIZnet Ethernet chip 4 SNMP network setting example overview and usage 4.1 Flowchart 4.2 Core preparation work 4.3 Connection method 4.4 Main code overview 4.5 Results demonstration 5 things to note 6 […]

13. W5100S/W5500+RP2040 Raspberry Pi Pico<FTP Server>

Article directory 1 Introduction 2. Related introduction 2.1 Brief description 2.2 Principle 2.3 Advantages 2.4 Application 3. WIZnet Ethernet chip 4. FTP Server running test 4.1 Program flow chart 4.2 Test preparation 4.3 Connection method 4.4 Related code 4.5 Test phenomena 5. Precautions 6. Related links 1. Preface In today’s information age, the Internet has […]