Category: Hardware
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How to Debug a Broken Web App: A Noob’s Guide to Token Hell
Settings page broken. JSON parse error. Redirect loop. Token issue. Here’s exactly how I traced a production bug from browser error to root cause, using nothing but curl,…
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Zero-Budget Homelab: How to Experiment Without Breaking the Bank
Most of my ideas don’t make money. That’s the problem. I needed infrastructure to build web apps, test IoT devices, and self-host services — but I couldn’t justify…
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RDP Painfully Slow? Your NIC’s Power-Saving Features Are Probably the Culprit
RDP lag is almost always blamed on internet speed. But when ping is solid and bandwidth is idle, the real bottleneck is the NIC driver. Five PowerShell commands…
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Discovery 3 CAN Bus, Part 11: EPB Module Replacement — Longitudinal Sensor & the Real Fix
The Discovery 3 air suspension CAN bus investigation reaches its conclusion. Replacing the EPB module restored the longitudinal acceleration sensor — fixing phantom pitch corrections, brake force data,…
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Discovery 3 CAN Bus, Part 9: Building Our Own UDS Diagnostic Tool
Building a Python UDS diagnostic tool for the Discovery 3 air suspension RLM module. Using a LilyGO ESP32 CAN board with full ISO-TP transport, Ford KeyGenMkI security unlock,…
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Discovery 3 CAN Bus, Part 8: The LilyGO CAN Transceiver TX Saga
We spent weeks trying to transmit CAN frames from the LilyGO ESP32 board. Frames were received perfectly but nothing would transmit. The fix? Two GPIOs we never knew…
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Why Can’t I Export Live Data From My LAUNCH Creader 123E? (And Why That’s a Problem)
If you’ve ever tried to properly diagnose a fault using a LAUNCH Creader 123E, you’ve probably hit the same wall I just did: You can record live data……
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📌 Mobile Workstation vs Gaming GPU Cheat Sheet
Workstation GPU Closest Gaming GPU Typical Performance Found in Laptops Like Typical Use Quadro M1200 GTX 950M 🟥 Old — entry level ThinkPad P51, older ZBooks 2D CAD,…
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Beginner’s Guide to EasyEDA Pro, JLCPCB Parts, LCSC Stock, and Why Your Part Shows Up Rotated
When you are new to PCB design and assembly, it is surprisingly easy to get tripped up by things that seem like they should “just work.” We recently…
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EasyEDA Pro test points and PCBA BOM exports: the unintuitive checkbox that finally fixed it
If you are sending a board off for assembly and your manufacturer keeps asking why your test points are in the BOM, here is the fix that finally…