Engineering-first robotics, AI, maker hardware, STEM, and creator technology reporting
STEM Lab covers STEM education, youth robotics, classroom technology, competitions, learning tools, and engineering literacy, with attention to safety, cost, reliability, and real-world teaching constraints.
A practical accessibility-first checklist for momentary switches, 3.5 mm jacks, debounce, scan timing, fail-safe states, mounting, and user testing.
Building an Accessible Switch Interface for STEM Projects Starts With the Input Contract Read More
A sports-technology STEM guide to choosing phone video, inertial sensors, or timing gates for sprint starts, cadence, segment time, and repeatable measurement.
IMU or Phone Video for Sprint Measurement? Start With the Question, Not the Sensor Read More
Separate AprilTag detection faults from pose errors by checking frames, tag family, detection-corner size, camera intrinsics, mounting and controlled settings.
AprilTag Detection vs Pose Errors: A Physical Setup Checklist Read More
Bluetooth Channel Sounding adds phase-based ranging and secure distance bounding. Sports and accessibility tags are plausible uses, but not documented deployed products or guaranteed accuracy.
Bluetooth Channel Sounding: What Tags Could—and Cannot—Do Read More
A safer maker-garage charging zone separates normal charging from damaged-battery intake and keeps people, combustibles and egress out of the hazard path.
Design an E-Bike Charging Zone That Keeps the Exit Clear Read More
For an accessible STEM build, choose mechanical or capacitive input by feedback, mounting, moisture and calibration—not by novelty.
Mechanical Switches or Capacitive Touch? Choose Inputs by Feedback and Conditions Read More
Photogates and UWB tags answer different sports-timing questions. Choose between a fixed crossing event and continuous radio ranging before buying hardware.
Photogates vs UWB Tags for STEM Timing: Choose the Measurement First Read More
A broadened transportation-tech guide for maker garages: where e-bike charging belongs, what to keep away from it, and how to reduce avoidable electrical and thermal risk.
E-Bike Charger Placement Is a Maker-Garage Engineering Checklist, Not a Floor-Space Problem Read More
A signal-level STEM lesson comparing cadence and torque inputs, including latency, filtering, plausibility checks and firm classroom safety limits.
Motion vs Rider Effort: An E-Bike Sensor STEM Lesson Read More
A broadened-lane STEM/sports-tech guide comparing UWB and Bluetooth Channel Sounding for timing gates, proximity experiments and student measurement projects.
UWB or Bluetooth Channel Sounding? Sports-Tech STEM Projects Need Accuracy Claims They Can Prove Read More