led interfacing with lpc2148 arm7 primer

This circuit can switch two or more devices on and off in response to a series of rapid handclaps. The claps are picked up by an electret microphone. The circuit operates by utilizing an electret microphone, which serves as the...

Any LED can be used for D1 - D10; however, blue LEDs require a higher voltage, which may result in them appearing dimmer compared to red, yellow, or green LEDs. If pin 9 of U2 is left disconnected, the...

The RF engineer sometimes needs an instrument that can reliably and quickly test a low-frequency quartz crystal unit. Finding such equipment can be challenging, and engineers often refer to electronic circuit handbooks for schematics that can perform this task....

A need exists for a 220V AC line light display or main voltage monitor due to frequent electrical issues in a home. To create a 220V AC line light display or voltage monitor, a circuit can be designed using a...

The LM35 series consists of precision integrated-circuit temperature sensors, with an output voltage that is linearly proportional to the temperature in degrees Celsius. The sensor's output can be converted to a digital signal, facilitating easy connection to a microcontroller....

Every DIY enthusiast creates their own electronic dice using LEDs as indicators. This eliminates the need to physically throw the dice; instead, a button press activates the roll. The circuit design ensures fairness by preventing manipulation of the outcome,...