This article will introduce a shooting and stealing game circuit, this game is designed according to the need to be "not to steal the fire, but also to preemptive". The oscillation frequency of the oscillation circuit OSC1 is about 1 Hz, and its output is applied to the 14th pin of the 4022 to perform a counting pulse. The pulse data output of 4022 outputs a high level in sequence. Since Q4 (11-pin) is connected to the reset terminal, when Q4 outputs a high level, the counter stops counting. If a party has pressed the button when it has not yet counted "4" (that is, if the calcium is fired when the calcium is shot), it means that the LED 8 of the fire will be lit, and the party that escapes the fire will lose. When counting to "4", Q4 outputs a high level. At which point, when the shooting button is pressed first, which side of the "victory" red light is on (LED6, LED7). When the 4 pin of 4022 is high, the 12 pin of OSC2 is also high, the oscillator starts to oscillate, and the buzzer connected to it emits a "beep" when it counts to 4, indicating that the shooting can begin. The specific circuit is shown below. Leather USB drive,Premium Black Leather USB Flash Memory,Leather Memory Sticks,Custom Leather USB drives and Leather Flash Drive Bracelets,USB Stick in Bulk Shenzhen Konchang Electronic Technology Co.,Ltd , https://www.konchangs.com