PCB Design Software for Small Businesses and Personal Projects: KiCad, Autodesk Fusion, and More
Designing a PCB is no longer limited to large engineering companies with expensive EDA software. Today, individual engineers, students, makers, startups, and small engineering companies can design professional PCBs using a variety of tools. The important question is: Which PCB design software is appropriate for a small company or an individual engineering project? There is […]
CR2032 Battery Design: Battery Life, Voltage Stability, and Flash Programming Errors
A CR2032 coin-cell battery is widely used in compact and handheld electronic devices because of its small size, low cost, and relatively long operating life. However, designing a device around a CR2032 battery requires more than simply calculating how long the battery will last. Two important design considerations are: A device may continue to operate […]
RS-485 Termination and Bias Resistor: Practical Calculation and Troubleshooting
RS-485 is widely used in industrial automation systems to connect PLCs, robots, PCs, remote I/O, sensors, and controllers. Although RS-485 is designed for reliable differential communication, incorrect termination, biasing, wiring, or grounding can cause intermittent communication problems. This article explains how to calculate the termination and bias resistors in a practical RS-485 network. 1. Basic […]
Industrial Communication Problems: Cable Connection, Impedance Matching, and Termination Resistors
In modern manufacturing environments, many machines and control devices must communicate with each other. A typical manufacturing system may include: PLCs Industrial robots PCs HMIs Servo drives Sensors Vision systems Motion controllers Remote I/O Industrial network switches These devices exchange data continuously through communication networks. When communication problems occur, engineers often focus first on software, […]
Why Digital Signals Become Unstable When Power Is Not Stable
Introduction A digital signal is normally expected to remain in a stable state between HIGH and LOW. Digital circuits use these two defined voltage levels to process and transmit information reliably. However, a digital signal can sometimes enter an undefined or unstable state, especially when the power supply is not stable. This problem can occur […]
How to Protect Your Electronics from Power Surges and Outages During Severe Weather
Severe weather can create serious problems for electronic equipment. Thunderstorms, lightning, strong winds, utility failures, and unstable power conditions can cause power surges, voltage drops, brownouts, and complete power outages. These power problems can affect computers, network equipment, industrial controllers, manufacturing systems, measurement instruments, and other sensitive electronic devices. One practical way to improve equipment […]