Most visited posts this week
-
How is it possible to power an LED with high brightness, the conduction voltage of 3 V with 1.5 V battery? That is what this article will te...
-
Figure 1: Diagram of the detector of magnetic material. If you approach an object's magnetic core of Ferroxcube choke L1, the LED li...
-
This LED board displays a maximum of 46 characters scrolling speed is easily adjustable using buttons. It operates independently and all ope...
-
Inserted into a set of closed circuit television (CCTV), or simply connected to a mini-CCD camera, this device allows to inexpensively det... -
Figure 1: Diagram of the circuit flash LED and components list. I had a high brightness LEDs, such as the one you use in assembling EN...
-
This device is a generator based on the voice audio chip from Holtek HT8950, when talking into the microphone, the voice from the loudspeake...
-
If you're a special lighting for your party or simply close your meal? A candle illuminates the interior decor without risking to b...
-
Figure 1: Photograph of the transmitter. Figure 2: Photograph of the receiver. A number of readers, after completing the 4-cha...
-
In our last issue we promised you a description of a micro-UHF, companion of the micro-transmitter controlled by voice. It is this micro-r...