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AVR245: Code Lock with 4x4 Keypad and I2C™ LCD
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日期：2025-12-13
AVR245: Code Lock with 4x4 Keypad and I2C LCD Features • Application example for code lock - Ideal for low pin count AVRs • Uses I/O pins to read 4x4 keypad • Uses Timer/Counter to control piezoelectric buzzer • Uses USI in TWI mode to communicate ......看更多
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