PAK-EL LAB Technical Blog

How to Design Hardware That Passes EMC and EMI Testing

Grounding, decoupling, high-speed routing and cable filtering practices that get boards through EMC/EMI compliance testing without a costly re-spin.

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ESP32 vs STM32 vs RP2040: Which Microcontroller Should You Choose?

A practical comparison of wireless connectivity, real-time performance, power draw and cost to help you pick the right core for your next product.

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Top 10 PCB Design Mistakes That Increase Manufacturing Costs

The layout and documentation mistakes that quietly turn into fabrication delays, assembly defects, and expensive re-spins — and how to avoid them.

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The Complete PCB Design Process: From Concept to Manufacturing

A step-by-step walkthrough of schematic capture, layout, DFM/DFA, prototyping, and the handoff to mass manufacturing.

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ESP32 LoRa Communication System

Complete ESP32 LoRa communication solution including gateway, node, mobile application and custom PCB design.

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ESP32 IoT Development Guide

Learn how ESP32 is used for IoT devices, BLE products, WiFi communication and embedded systems.

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LoRa vs WiFi For IoT Projects

Compare LoRa and WiFi technologies to determine which communication method is best for your project.

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PCB Design Tips For Reliable Electronics

PCB layout techniques that improve EMC performance, reliability and manufacturability.

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Marine Monitoring Systems

Power monitoring, bearing monitoring, wave height and ship automation systems for marine applications.

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Industrial 4-20mA Systems

Design approaches for industrial 4-20mA signal generators, readers and monitoring systems.

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UWB Indoor Positioning Systems

Ultra Wideband positioning technology with ESP32 and advanced indoor tracking applications.

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