Isolated Serial Ports and CAN-FD in Industrial Deployments
In industrial projects, the interfaces between the board and field equipment are where problems concentrate. Sensors, actuators and variable-frequency drives all inj…
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HS86 or HS89? Choosing Between Two Product Lines
HS86 and HS89 both look like network TV boxes and their model numbers sit close together, but they use different SoC platforms and serve two different positions. Cho…
Industrial Network Redundancy: Multiple Ports, Link Backup and Failover
Downtime is expensive on an industrial site, and networking is the most failure-prone part of the chain. The goal of redundancy is not “no failures” but “a failure t…
Adding a 4G/5G Module over Mini PCIe: Engineering Essentials
Attaching a 4G/5G module to an industrial router or edge gateway looks like a matter of inserting a card. In practice, half the engineering problems come from power…
OpenWrt or ImmortalWrt? Mainline, Forks and Flashing Risk
In industrial router or software router projects, the firmware platform often matters more to the outcome than the hardware specification. OpenWrt and ImmortalWrt fr…
Backup Strategy for a Private Cloud: Applying 3-2-1 in a Self-Hosted Setup
The most common mistake in a self-hosted cloud is treating “we have RAID” as “we have backups”. The two solve entirely different problems, and many people only learn…
Upgrading to a 2.5G Network: When It Pays Off and How to Do It Cheaply
Gigabit networking was standard a decade ago but increasingly looks like a bottleneck. When NAS traffic, backups and media transfers all share one gigabit link, the…
NAS Storage Choices: How to Split Work Between SATA HDDs and NVMe
The question that stalls most self-hosted NAS builds is whether to go with spinning disks or all-flash. The answer is usually not either/or but a division of labour…
Designing a SoM Carrier Board: Power, Clocks and Routing for SO-DIMM Modules
Building a product on a system-on-module means handing the hardest parts — SoC, memory, storage — to the module vendor and designing only a carrier board. That saves…
Thermal Design for Edge Boxes: Fanless, Active or Passive Cooling
When an edge device fails, the leading cause is usually not software but thermals. A box that performs beautifully in an air-conditioned server room may not survive…