PWM lamp dimmer A simple and efficient PWM lamp dimmer using timer IC NE555 is discussed in this article. Yesterdays linear regulator based dimmers can only attain maximum efficiency of 50%... Read more
Description: A switched timer for intervals of 5 to 30 minutes incremented in 5-minute steps. Circuit diagram Notes: Simple to build, simple to make, nothing too complicated here. However yo... Read more
Disclaimer: As I have seen before, IT IS NOT A TOY, DON’T DO ANYTHING STUPID WITH IT. I DON’T ACCEPT ANY RESPONSIBILITY OF DAMAGES DONE TO OTHER PEOPLE OR YOURSELF WITH THIS DEVI... Read more
The automatic bike turning signal system based on a microcontroller (MCU) available in the market is expensive and difficult to program. Here is a simple and inexpensive circuit that you can... Read more
An interesting circuit transformer is used to supply 12 volt 24 volt dc dc upgrade without using the core n555 used to supply 2sj302 mosfets with opto-sticks connected to the output end of c... Read more
In the DC AC converter circuit, the 555 timer timer integrates a square wave. Continuously transmits and cuts square wave transistors from terminal 3 of terminal 555. The transmiss... Read more
Electrical engineer engineer engineer big inventor Nikola Tesla has prepared many drawings and detailed information (in English) are available. A few examples of designs: electronic arc lamp... Read more
In terms of signals with frequencies over 20 kHz ultrasonic waves are ultrasonic waves or ultrasound call. The use of a 36 kHz or 40 kHz signal is common in ultrasou... Read more
The circuit is made with the ne555 timer. The tone of the tones determines the capacitors connected to the buttons. The capacitor values are indicated in the diagram but you can chang... Read more
The circuit generates sound in different tones when the buttons connected between pins 2 and 1 made with the ne555 timer are pressed. The capacitors connected to the tonal buttons of the voi... Read more
