Wireless Networking: Planning, Devices and Embedded Systems - Yenra

Plan and diagnose Wi-Fi, connect devices and build embedded systems with twenty practical guides and technology explainers.

Start with the task your network must support. These twenty guides and explainers connect coverage, access, device integration and embedded-system questions with practical evidence and useful next steps.

Plan an installation, diagnose a failed connection, bring a library to a screen, or build a sensor data path. The technology explanations also help interpret ranging, RF components and pre-standard Wi-Fi claims.

Plan and troubleshoot Wi-Fi

An ivory office floor plan with teal coverage areas, amber markers and a navy survey tablet.

Wi-Fi Site Survey: Map Coverage and Validate Real Tasks

Map coverage, compare survey methods and validate real tasks with representative Wi-Fi clients.

A navy access point and laptop stand beside glass panels carrying teal and amber waves.

Wi-Fi Interference: Identify the Cause and Verify a Fix

Distinguish coverage, competing airtime and non-Wi-Fi energy, then verify a controlled change.

Four access points sit over a navy floor plan beside separated teal and amber channel strips.

Wi-Fi Channel Planning: Balance Width, Reuse and Airtime

Balance channel width, reuse and shared airtime using a measured multi-access-point trial.

Secure and manage access

Three device work areas connect through a glass gate to a server, with an amber key in front.

Secure Workplace Wi-Fi: Access Policies and Verification

Define employee, guest and device access, test network boundaries and maintain a workable security policy.

A managed switch and two access points sit beside a cable, magnifying glass and inventory clipboard.

Rogue Access Points: Investigate and Remove Unauthorized Connections

Investigate unfamiliar access points, verify wired attachment and close unauthorized paths through owned infrastructure.

A laptop, access point and server are linked beside a glass certificate and amber SIM token.

Wireless LAN Authentication: 802.1X, RADIUS and EAP Methods

Trace 802.1X, RADIUS and EAP roles, check certificate relationships and locate a failed network join.

A laptop and wireless router connect through glass gates with teal packet blocks and an amber stop symbol.

Wireless Firewalls: Trace Rules, NAT and Connection Failures

Trace a permitted connection through interfaces, firewall rules, NAT and state, then verify a narrow correction.

Build sensors and embedded systems

Wireless sensors and a gateway stand beside a glass time-series display with a gap.

Wireless Sensor Networks: Design a Monitoring Pilot

Design a monitoring pilot around measurement quality, data freshness, recovery and maintenance.

A sensor development board sends a conceptual signal to a receiver connected to a laptop.

Build a Wireless Sensor Prototype: From Firmware to a Stored Reading

Follow a versioned Zephyr example from firmware and Bluetooth indications to an interpretable stored reading.

A sensor, gateway and controller are connected beneath a glass panel of translated data blocks.

Zigbee Ethernet Gateways: Map Sensor Data into an Existing System

Define and bench-test Zigbee-to-Ethernet data mappings, including units, timestamps and failure behavior.

Three radio modules stand on ivory plinths beside a glass branching path and amber battery symbol.

Wireless Mesh Modules: Select Node Roles, Interfaces and a Supported Stack

Compare mesh radio modules by supported stack, node role, host interface, power and recovery evidence.

An embedded wireless evaluation board sits beside a laptop, glass key and amber reconnection symbol.

Embedded Wi-Fi Web Modules: Provision, Expose Data and Test Recovery

Define provisioning, a readable data contract, persistence and recovery tests for an embedded Wi-Fi web service.

Connect media, controls and mobile work

A television displaying a coastal photograph stands beside a media adapter and two speakers.

Wireless Media Adapters: Bring a Local Library to a TV or Stereo

Match a local media library, playback adapter and TV or stereo outputs, then test representative files.

A tablet and infrared bridge sit beside a stereo receiver with a small wired emitter near its front panel.

Wi-Fi-to-IR and Serial Bridges: Control Legacy Devices Reliably

Distinguish bridge acknowledgments from device feedback and test reliable IR or serial command sequences.

A clipboard and tablet sit beside a stepped path of task tokens and a glass comparison panel.

Mobility Assessment: Decide Which Workflow Is Ready to Go Mobile

Observe mobile workflows, record a baseline and choose a pilot with explicit success and exit criteria.

Understand radio technology and its history

Two navy radio tags stand across an amber screen, with teal distance arcs and a phone nearby.

Ultra-Wideband: Understand Ranging, Accuracy and Compatibility

Interpret UWB distance, direction and accuracy claims, and plan a compatibility and obstruction trial.

RF components and gold traces sit beneath glass panels illustrating amplifier, filter and switch concepts.

Wireless RF Front Ends: What Amplifiers, Filters and Switches Do

Understand amplifiers, filters and switches, and compare RF front-end specifications at matching conditions.

A three-antenna vintage router, laptop and network card stand on ivory display plinths.

Belkin Pre-N and Airgo MIMO: What Pre-Standard Wi-Fi Promised

Interpret Belkin Pre-N and Airgo-era MIMO claims using model documentation, standards chronology and test context.

Historical reporting

These three remaining articles preserve period-specific access-point and conference reporting. Their availability and technical claims reflect the original publication period.

Explore the wider Wireless library for home setup, devices, travel and mobile work.