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STM32F407VET6 Expansion Board

Overview

This expansion board design, based on the LCSC SkyStar STM32F407VET6, is rather rudimentary, lacking many functionalities. Another issue is that the 7-pin OLED will obstruct ST-Link downloads, so it should not be soldered. This design brings out 80 GPIOs from the STM32F407VET6 core board using headers and includes some onboard peripherals: 1. Three LEDs and one RGB LED. 2. Five user-defined buttons and a rotary encoder. 3. A DS1302 real-time clock module (with battery). 4. A DHT11 temperature and humidity module. 5. A potentiometer and photoresistor for ADC sampling. 6. A buzzer module. 7. Bluetooth and Wi-Fi interfaces. 8.

Basic testing of the 0.96-inch OLED screen and 1.8-inch TFT screen is complete. The code, written using the standard library, is attached.

Design Files

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Update:2026-03-25 13:31:46

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