Looking to beef up the security of your humble abode? Check out these useful smart sensors that can be used for the inside of ...

A team of scientists has introduced a cost-effective optical detection for microfluidic devices, leveraging light-dependent ...

The two diagrams above are of the same circuit for a simple night light. How it works: when darkness falls on the light dependant resistor (LDR), its resistance increases causing a higher voltage ...

Next is the LDR circuit, which consists of a 56K resistor ... projects ranging from controlling media players to robots. Each project demonstrates simple ways to use hand gestures for contactless ...

As you can see, we only have an ESP32 connected to an LDR sensor and the MPU6050 (placed under the ESP32 ... the device and a hook up strap to mount this to our hand. The complete circuit diagram for ...

Figure 1 gives a simple circuit for the PUSH ON, PUSH OFF function with only a few inexpensive components. In this design, the output is connected to the input of the gadget when you press the push ...

Many diseases are caused by a missing or defective copy of a single gene. For decades, scientists have been working on gene ...

A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

A study from MLU found that brain stimulation using tDCS can slightly influence decision speed and flexibility, though its ...

IMSAI Guy] grabbed an obsolete XOR gate and tried a classic circuit to turn it into a frequency doubler. Of course, being an ...