| There are many interfaces to send data to a standard alphanumeric LCD via one wire using a shift register IC. This one uses a microcontrolle...
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| Most induction meters are suitable for small coils, but do not measure with high currents. With the circuit presented here, a high-current b...
| The Elektor Audio DAC for the Raspberry Pi was still missing a vital part: a good power supply that provides both 5 VDC and 9 VDC outputs. E...
| Current measurement requires the use of an ammeter placed in series with the load. An ideal ammeter has no voltage drop; it is a short circu...
| Elsewhere in this magazine you can learn about a method to connect two ‘digital’ rotary encoders to a microcontroller using only one analog...
| Want to simulate a candle? You can with this simple project, which uses only one active component and three LEDs. Its effect is extremely re...
| Even though your car’s interior lighting is not the biggest power consumer, it can still drain the battery if it is accidentally left on for...
| When cooking food, timing is one of the most important ingredients. This digital timer can be a great help!
| This circuit interferes with the low-voltage connection between the boiler control unit and the hot water flow switch — the sensor that clos...
| With this circuit featuring a single ATtiny85 microcontroller, you can simultaneously obtain three square waves of different, user-defined f...