A new NEMA standard covers the measurement of field-of-view and coverage qualities for vacancy and occupancy sensors using passive infrared, ultrasonic, or microwave technology. The National ...

Ever wonder how to calculate revolutions per minute using a microcontroller? This project shows you how by purposing an IR emitter and detector and a computer fan. As the fan blades spin they disru… ...

Check out more Sensors Converge coverage. STMicroelectronics' TMOS sensors handle presence sensing using a 5- to 20- µ m passive IR sensor.