MaytinhcongnghiepKnowledge
The things we keep having to explain during consultations — written down here so you can read them first and save time.
Why industrial factors decide the machine, not the CPU
Machines in the field rarely fail for lack of performance. The four fastest killers are heat, vibration, dust and power — and all four are decided before you pick a CPU.
6 min readWhat a fanless computer is and when you need one
Fanless is not just about running quieter. It removes the only mechanical part in the machine — the part that pulls dust inside and fails first.
5 min readRS-232, RS-422 or RS-485 — choosing the right COM port
Three standards that look identical on the same DB9 connector, but pick the wrong one and nothing works. Tell them apart by device count and distance.
5 min readReading the temperature range in a datasheet correctly
The −40~70°C figure almost always comes with a small line of conditions underneath. Skipping that line is the root of most thermal failures.
6 min read