Engineering-first robotics, AI, maker hardware, STEM, and creator technology reporting
ADXL345 tap detection uses scaled threshold, duration, latency and window registers plus axis enables and interrupt mapping; raw register values are not g or milliseconds.
ADXL345 Tap Detection: Convert Threshold and Timing Registers First Read More
GitHub stacked pull requests are generally available with preserved approvals on unchanged rebases, signed replacement commits and stack-aware merge automation.
GitHub Makes Stacked Pull Requests Generally Available Read More
The TSL2591 can span very dim to bright scenes, but gain and 100–600 ms integration time determine whether its full-spectrum or infrared channel saturates.
TSL2591 Saturation: Lower Gain Before Trusting the Lux Reading Read More
The MAX17048 estimates single-cell Li-ion state of charge from cell voltage with ModelGauge, exposing voltage, percentage and a programmable active-low alert over I²C.
MAX17048 Fuel Gauge: Read State of Charge Without a Sense Resistor Read More
GitHub secret scanning now recognizes five Lovable, Pydantic and Supabase credential types, with public Lovable API keys also routed to the issuer for response.
GitHub Secret Scanning Adds Lovable, Logfire and Supabase Tokens Read More
The US5881’s output is open-drain, so it can pull a GPIO low but cannot drive it high. A pull-up and correct magnet orientation are required before software can see a clean switch.
US5881 Hall Sensor Stuck High? Add the Pull-Up Before Moving the Magnet Read More
The DS3502 gives firmware 128 steps across a 10 kΩ potentiometer, but the wiper remains an analog node with voltage, loading and startup-state limits.
DS3502 Digital Potentiometer: Treat the Wiper as an Analog Node Read More
Raspberry Pi’s new $30 Smart Display Module adapts Compute Module 5 to Intel SDM-L displays, adding host-powered installation, a second HDMI output and M.2 expansion.
Raspberry Pi’s $30 Smart Display Module Puts CM5 Inside SDM-L Screens Read More
A diode across a DC relay coil suppresses the turn-off spike, but its low clamp voltage lets current decay slowly. Faster release needs a deliberately higher, rated clamp.
Relay Flyback Diodes Protect the Driver but Slow Release Read More
An H-bridge can leave a motor electrically open or short its terminals during a stop. That choice changes current decay, braking torque and how repeatable a robot’s stop feels.
DC Motor Brake and Coast Modes Change How a Robot Stops Read More