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October 19, 2026
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Author: TVG Editorial Team

Passive oscilloscope probe with cable and ground lead
STEM Lab

Oscilloscope Probe Loading: Fix the Measurement Before the Circuit

September 11, 2026September 13, 2026 - by TVG Editorial Team - Leave a Comment

A 10× probe can add capacitance and loop inductance that distort fast edges. Qualify compensation, grounding and bandwidth before diagnosing the board.

Oscilloscope Probe Loading: Fix the Measurement Before the Circuit Read More
Terminal showing real journalctl list-boots and disk-usage output across two Linux boots
Robotics & AI

Use journalctl to Catch Intermittent Linux Service Failures

September 11, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

A boot- and invocation-scoped journalctl workflow preserves the evidence that automatic service restarts often hide on Linux robots and lab systems.

Use journalctl to Catch Intermittent Linux Service Failures Read More
GitHub Docs cache-mode table showing read, write, write-only and none restore and save permissions
Tech News

GitHub Actions Adds Cache-Mode to Limit CI Cache Poisoning

September 11, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

GitHub Actions now supports read, write, write-only and none cache modes, giving maintainers an explicit trust boundary for CI caches.

GitHub Actions Adds Cache-Mode to Limit CI Cache Poisoning Read More
PCI Express add-in card containing two NVMe solid-state drives.
STEM Lab

NVMe SMART Logs: Separate Power-Loss Counts from Media Errors

September 10, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

Read NVMe critical warnings, media errors, unsafe shutdowns, endurance and error-log entries as separate signals instead of one health score.

NVMe SMART Logs: Separate Power-Loss Counts from Media Errors Read More
Ethernet switch with active network cables in a lab setting.
Maker Culture

Ethernet Duplex Mismatch: Read Both Ends and the Error Counters

September 10, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

Use ethtool and switch-port counters to separate a duplex mismatch from bad cabling, congestion and an ordinary speed negotiation.

Ethernet Duplex Mismatch: Read Both Ends and the Error Counters Read More
IBM Research announcement page for the Granite Time Series PatchTST-FM-r2 model
Tech News

IBM Granite PatchTST-FM-r2 Changes the Zero-Shot Forecasting Tradeoff

September 10, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

IBM’s 385-million-parameter Granite PatchTST-FM-r2 combines Conformer blocks, 8,192-step context and 99-quantile output under permissive licenses.

IBM Granite PatchTST-FM-r2 Changes the Zero-Shot Forecasting Tradeoff Read More
External USB webcam photographed against a neutral background.
Maker Culture

Find USB Webcam Bandwidth Limits on Linux Before Frames Drop

September 9, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

Use v4l2-ctl, lsusb and pixel-format math to determine whether a Linux webcam problem is a mode limit, shared USB link or application setting.

Find USB Webcam Bandwidth Limits on Linux Before Frames Drop Read More
EIBOS Polyphemus Spec Analysis: Rotation, Heat and Spool Capacity
Maker Culture

EIBOS Polyphemus Spec Analysis: Rotation, Heat and Spool Capacity

September 9, 2026September 9, 2026 - by TVG Editorial Team - Leave a Comment

The EIBOS Polyphemus combines dual-spool capacity, powered rotation and distributed hot-air outlets. We separate its documented features from the performance claims that still need independent measurements.

EIBOS Polyphemus Spec Analysis: Rotation, Heat and Spool Capacity Read More
Industrial USB-to-isolated RS-232, RS-422 and RS-485 converter.
STEM Lab

RS-485 Termination and Biasing: Isolate Reflections from Idle-Bus Errors

September 9, 2026September 14, 2026 - by TVG Editorial Team - Leave a Comment

Separate RS-485 reflection faults from idle-bus bias problems with resistance checks, waveform timing and one-change-at-a-time isolation.

RS-485 Termination and Biasing: Isolate Reflections from Idle-Bus Errors Read More
GitHub Copilot sandbox settings in a JetBrains IDE, including filesystem and network controls.
Tech News

GitHub Adds Enterprise Sandbox Controls to Copilot in JetBrains IDEs

September 9, 2026September 13, 2026 - by TVG Editorial Team - Leave a Comment

GitHub enterprise administrators can now lock Copilot sandbox access to files, networks, proxies, developer tools and the macOS Keychain in JetBrains IDEs.

GitHub Adds Enterprise Sandbox Controls to Copilot in JetBrains IDEs Read More

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TVG Report review-policy graphic explaining supplied products, independent conclusions, and verified results

Wonder whether a supplied review unit changes the verdict? You're right to ask. TVG Report discloses supplied products, keeps conclusions independent, and separates manufacturer claims from verified results. Our review policy: #ProductReviews

Sep 18, 2026 · 10:03 AM PT

View on XRead the review policy
TVG Report infographic over a 3D-printing workbench highlighting first-layer, profile, and fit checks before adjusting and reprinting

You can lose an evening to a drifting first layer, a bad profile, or a part that prints cleanly and still does not fit. TVG Report looks past headline speeds to the checks, tradeoffs, and repair paths makers actually need. #3DPrinting

Sep 17, 2026 · 10:18 AM PT

View on XExplore Maker Culture
DS18B20 debugging infographic showing the 85.0°C power-on value, a three-wire probe, and checks for conversion, CRC, and power

A DS18B20 at exactly 85°C may be power-on data—not heat. Trust it after conversion completes and CRC passes. Our guide maps power mode and w1_therm checks.

Sep 16, 2026 · 3:54 PM PT

View on XRead the DS18B20 guide
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Latest Posts

Raspberry Pi 5: choose power for devices, cooling for sustained work

Raspberry Pi 5: choose power for devices, cooling for sustained work

October 18, 2026October 19, 2026

Set DRV8871 Current Limit Without Confusing Peak and Continuous Current

Set DRV8871 Current Limit Without Confusing Peak and Continuous Current

October 17, 2026October 17, 2026

Calibrate PCF8523 RTC Drift and Check Backup Failures First

Calibrate PCF8523 RTC Drift and Check Backup Failures First

October 17, 2026October 17, 2026

GitHub License Compliance Goes GA as a Merge-Time Ruleset

GitHub License Compliance Goes GA as a Merge-Time Ruleset

October 17, 2026October 17, 2026

Adafruit LSM6DSOX six-degree-of-freedom inertial sensor breakout

LSM6DSOX FIFO Overruns: Set the Watermark From Your Drain Time

October 16, 2026October 16, 2026

Adafruit MAX31865 RTD PT100 or PT1000 amplifier breakout

MAX31865 RTD Readings Wrong? Check Reference Resistance and Lead Wiring

October 16, 2026October 16, 2026

GitHub code scanning alert with the Assign to Copilot control

GitHub Agentic Autofix Goes GA, but Validation Still Has Boundaries

October 16, 2026October 16, 2026

INA260 Alert Arrives Late? Calculate the Averaging Delay

INA260 Alert Arrives Late? Calculate the Averaging Delay

October 15, 2026October 15, 2026

MCP9808 Alert Pin Chatter? Match Hysteresis to Conversion Time

MCP9808 Alert Pin Chatter? Match Hysteresis to Conversion Time

October 15, 2026October 15, 2026

GitHub Actions Workflow Lockfiles Pin Direct and Transitive Dependencies

GitHub Actions Workflow Lockfiles Pin Direct and Transitive Dependencies

October 15, 2026October 15, 2026

TCS34725 Color Readings Drift? Control Gain, Exposure and Illumination

TCS34725 Color Readings Drift? Control Gain, Exposure and Illumination

October 14, 2026October 14, 2026

Seeed Studio reCamera Pro Review Preview: The Integration Is the Test

Seeed Studio reCamera Pro Review Preview: The Integration Is the Test

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