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Electronic password lock based on STM32

Overview

Simple course design open source: electronic password lock based on STM32

The design uses STM32F030F4P6 MCU, and uses relays to open and close the password lock. It has password power-down storage (built-in Flash) and serial communication functions (CH340 solution).

The screen uses a 4-pin I2C OLED display and is driven by SSD1306.

The program binary file is placed in the attachment and can be programmed and tested by yourself.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-24 15:12:23

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