The ATMega328 board is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a RS232 connection, a power jack, an ICSP header, and a reset button.
Read more: ATMega328 board
LED VU Meter
A VU meter indicates the Volume Unit, mostly of audio equipment. A VU meter is used to get a sense of the loudness of the signal. A VU meter can also be used in any other equipment to measure intensity levels.
Read more: LED VU Meter
Photocell or LDR
A photocell or photo resistor is a Light Dependent Resistors (LDR). LDR's are sensors that detect light. They are small, inexpensive, low-power, easy to use and don't wear out.
Read more: Photocell or LDR
Digital LED Thermometer
This project shows the temperature on a three digit 7-segment display, it measures the temperature from -9.5 to 99 degrees Celcius in 0.5 C steps, or from 0 to 210 degrees Fahrenheit in 1.0 degrees steps.
Read more: Digital LED Thermometer
RGB LED Color Mixer
An RGB LED is a LED which has three LED's integrated in one packaging. These LED's have the colors red, green, and blue. Such a LED costs about 1 Euro. With these three colours you can mix to any colour.
Read more: RGB LED Color Mixer
LM335 Temperature Sensor (LCD)
The LM335AZ is a small low cost (0,75 €) analog temperature sensor that reads the ambient temperature and is calibrated in degrees Kelvin. The LM335 has an output from −40°C to 100°C.
Read more: LM335 Temperature Sensor (LCD)