1. Dual-channel 232 Communication Circuit Three-wire connection method, corresponding to the female connector, operating voltage 5V, can use MAX202 or MAX232. 2. Transistor Serial Communication This circuit is built with transistors, simple circuit, low cost, but the issue is that it works very well at low baud rates. 3. Single-channel 232 Communication Circuit Three-wire method, … Read more
Joyoung Soy Milk Machine, the fighter among soy milk machines~A product’s success has its inevitable reasons. When it comes to soy milk machines, the first name that comes to mind is probably Joyoung, which has almost become synonymous with soy milk machines.Today, we will disassemble a soy milk machine and look at it from the … Read more
WeChat Official Account:Electromagnetic Compatibility Home Issue 2778 1.Problem Description An industrial display screen experienced blue screen issues and system crashes during ESD (Electrostatic Discharge) testing, with ±6kV contact discharge applied to the network port, USB, and serial port. The system could recover after a power cycle, but the tests failed. This issue has persisted for … Read more
Recommended Video When devices face unexpected power outages from external power supplies, it can easily lead to data loss in memory or even system damage. The eUPS0505 embedded micro power backup module is compact and easy to use, providing stable backup power and quick power outage notifications, thus safeguarding embedded systems. Application Scenarios and FunctionsIn … Read more
To join the hardware electronics learning group, reply with “Join Group“. Sometimes, when a circuit needs to implement a master-slave communication setup, the commonly used communication protocols are SPI, I2C, or RS485 bus forms. Among these, I2C is the simplest and most convenient for on-board communication, requiring only two wires to establish a bus. However, … Read more
Proteus software is a comprehensive tool widely used for electronic circuit design and simulation, developed by Labcenter Electronics Ltd. This software enables a variety of functions including schematic and PCB design, SPICE simulation, microcontroller simulation and programming, and embedded system design, making it a highly practical electronic design software. When designing circuits, Proteus software provides … Read more
IntroductionRecently, some friends have reported that they did not understand the power supply circuit of our open-source Bluetooth speaker solution.Open-source address: https://oshwhub.com/sunsilicon/s-be5607eThe power supply design of the Bluetooth System-on-Chip (SoC) is crucial, directly affecting the performance, stability, battery life, and cost of Bluetooth devices. When designing, multiple aspects must be considered comprehensively to ensure that … Read more
Principles of Pull-Up Resistor Application1. When a TTL circuit drives a CMOS circuit, if the high level output from the TTL circuit is lower than the minimum high level of the CMOS circuit (generally 3.5V), a pull-up resistor is needed at the TTL output to increase the high level output value. ……………………….2. An OC gate … Read more
Recommended Videos When devices face unexpected power outages from external power supplies, it can easily lead to data loss in memory or even system damage. The eUPS0505 embedded micro power backup module is compact and easy to use, providing stable backup power and quick power outage notifications, thus safeguarding embedded systems. Application Scenarios and FunctionsIn … Read more
“Grounding is considered a solution to many EMI issues. However, when grounding is done improperly, the chosen grounding scheme can become part of the problem. This article illustrates the issue of grounding coupling interference through simple examples.” 01 — Common Impedance Coupling According to Ampere’s law (the theoretical cornerstone of EMC grounding concepts – Maxwell’s … Read more