| Microcontrollers, including the ATmega328 on the Arduino board, have many different types of input. They include analog inputs, which can be...
Burkhard Kainka (212)
| You might ask why you should use a microcontroller when it’s possible to do so much with ordinary analog electronics. At first glance, this...
| It all started with high frequencies: radio technology was the driving force of electronics. At first there were electron tubes and AM radio...
| If we only used electronics to process existing signals, we would be missing an important aspect of electronics: generating oscillating sign...
| The radiation meter published in the November 2011 edition of Elektor is currently being used by many readers, mainly in making long-term me...
| The principle of a (preferably) linear amplifier is straightforward: an audio signal modulates (varies in volume and frequency) the small ba...
| It is often necessary to deal with tiny currents in the picoamp to microamp range when making measurements in ionisation chambers and other...
| In the previous instalment we worked with static flip-flops and Schmitt triggers. Now things get a bit more dynamic, with capacitors providi...
| Energy saving is all the rage, and here is our small contribution: how much (or rather how little) current do we need to light an LED? Exper...
| An LC oscillator is usually adjusted using a variable capacitor. However, for frequencies below around 100 kHz this calls for a variable cap...