| The MAX7219 is a very useful and versatile display driver that can drive up to 64 LEDs independently. It’s well-known, but existing tutorial...
All items tagged with Circuits & Circuit Design and Sensors (5)
| The fingerprint-readout function is widely used in high-tech devices such as notebooks, advanced keyboards, and automated access control, bu...
| Need a project to solve the problem of remotely monitoring a water heater with a simple circuit? This design uses a current sensor, a transi...
| With inexpensive ultrasonic sensors, you can design both basic and sophisticated measuring devices for various ranging applications. By comb...
| PIR-controlled presence detection solutions are popular, but they don't detect stationary bodies. This DIY radar-controlled project is a han...