This is applicable only when a light sensor is soldered in its pads (CDS) on the front of the circuit board. A 47–100K resistor works fine with standard 5-mm LDRs. A word of caution: I could not find ...

Feels like a bummer for Kickstarter backers, but for anyone looking for a fun coding project, the $29.99 Motion Sensor Kit is available right now and looks like it will enable a lot of fun projects.

Using a Web-based system The circuits that interface with the motor driver are located on the station’s printed-circuit board (Figure 4 ), which also contains the limit sensors, the drivers for the ...

Printed circuit boards are used in all disciplines, including motion-control applications. New CAD software helps designers create better schematics and layouts. The days of “electro” and ...

Therefore, the 9V signal is then lowered once more using a voltage divider circuit. When the PIR sensor is triggered, it activates the timer circuit. The timer circuit is driven by a 555 timer.

The new Eve Motion costs $39.95, which is $10 less than the previous version and its closest competitor, the Philips Hue Motion Sensor (which uses Zigbee and also monitors temperature).

There’s no shortage of ESP32 development boards out there, with many of them offering some “killer app” feature which may or may not align with whatever it is you’re trying … ...

The trigger circuit comprises five major components: the sensor, the conditioner, the pulse generator, the opto-isolator, and the power conditioner (Fig. 1). The power conditioner, which is not ...

Researchers developed a single-use sensor strip that can be used with a circuit board to detect cerebrospinal fluid leaks. They collected nine clinical samples and introduced the test fluid into a ...