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PRG0801-Dual Door Bell with LEDs
Major Features:
The Au Group Electronics PRG0801 is an 8-pin 8-bit flash microcontroller with integrated program. It is a fun circuit for driving Buzzers creating cricket-chirping-like noises and LED blinks at the same time. It has dual input and output interfaces which are independent to each other. This feature makes it capable of handling dual door bell application with LED indications. Also the single door bell circuit is doable if only one is needed. Its low current consumption feature makes it also a good candidate for battery-powered toys. All of the control logic required for circuit operation is contained within the PRG0801 8-pin integrated circuit. For Do it yourself dual door bell project, normally only batteries, 2 buzzers, 2 LEDs, 2 switches, and 4 resistors are needed. The PRG0801 use a random algorithm generates chirps/beeps at random frequency and random intervals of up to 8 ~ 9 seconds. Between these series of chirps/beeps, the integrated circuit is kept at low power mode in order to conserve batteries energy. Also the push-pull buzzer driver eliminates the need for an external capacitor to drive non-self-drive type buzzers. Two package are provided: 8-lead PDIP and 8-lead SOIC.
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