Roel Arits (20)

| LED's and gravity ?? Sure ! In this project you will see how you can make LEDs react to gravity !

| How to chase away the cat of your neighbours that uses your garden as a toilet ? Or you can use this project as a practical joke to fool a f...

| Play the "Jingle Bells" or the "Mission Impossible" tune using one digital output of the Arduino, connected to a little speaker.

| There are dozens of LED flasher designs on the web. But this design is based on a special complementary transistor combination (which is n...

| I wanted to end my diarrhea of LED fader designs with a humoristic design. Though it looks like a bad joke, it still has a nice LED fade e...

| YALALF Yet Another Linear Analogue LED Fader Inspired by the idea of Arnoldus and plots of Clemens Valens.

| What do you get when you combine a capacitive sensor, wireless power transfer and a slow RGB colour changer ? Right, a magic lamp !

| Using a Twin-T sine oscillator to generate a non-linear, but still pretty good LED fading effect.

| Use the FET square law to linearize the brightness of a LED, so a linear brightness curve is achieved.

| LEDs and closed loop brightness control ? Or using 'ancient' techniques such as current squaring current mirrors ? Let's go analogue for a c...