Rangkaian Lampu Lalu Lintas-Traffic Light This activity operates red, amber and blooming LEDs in the actual arrangement for a distinct UK cartage light. The time taken for the complete red – red & amber – blooming – amber arrangement can be assorted from about 7s to about 2½ account by adjusting the 1M preset. Some [...]
Rangkaian Led 7-Segment Interface Circuit The circuit uses a serial-in-parallel out shift register, 74HC595 for receiving serial data from uController board. See example of U5 in the schematic, SER is for data input, SRCLK is shift clock and RCLK is Latch clock. Each data bit is shifted into the register on rising edge of the [...]
Led Matrix With AT90S2313 Microcontroller Circuit LED ball physically assembled in a matrix of dimension 20 Rays and 7 LEDs. LEDs are governed microcontroller and two decoder K155ID10. Operating current 80mA decoders, this is enough to connect the LED matrix in the dynamics of directly between the microcontroller and decoders, excluding transistors, the brightness of [...]
Led Flasher with IC 555 Circuit A dual tandem flashing light circuit powered by a 9 volt battery, This circuit is powered by a 9 volt battery, suitable for warning lights on a tall structure. (Personally, I can’t recommend you buy anything but the Rollins Railroad Designs kit; for $4.00 you can’t go wrong. The [...]
This project flashes 18 LEDs at three different rates and you can use these to create a Christmas decoration of your choice. The circuit is kept simple (and cheap!) by using the 4060B IC which is a counter and oscillator (clock) in one package. The circuit requires a 9V supply, such as a PP3 battery. [...]
Dancing Leds Schematic Diagram Device purpose: The basic circuit illuminates up to ten LEDs in sequence, following the rhythm of music or speech picked-up by a small microphone. The expanded version can drive up to ten strips, formed by up to five LEDs each, at 9V supply. Circuit operation: IC1A amplifies about 100 times the [...]
