F407 Extended Learning Board

This expansion board includes commonly used modules, communication protocols, and input/output interfaces,
primarily including:

a common LCD display, a Taojingchi serial port screen
, ADC acquisition, buttons,
WS2812B three-color LEDs,
an SG90 servo motor
, a DHT11 temperature and humidity sensor, a potentiometer
, a buzzer, a rotary encoder,
I2C, UART, and PWM output interfaces
, DC socket power supply, and 5V, 3.3V, and 1.65V outputs.

Detailed specifications:

All pins are led out via pin headers and are silkscreened;
the I2C interface OLED includes both new (starting with GND) and old (starting with VCC) versions; be careful not to plug them in incorrectly;
the AD acquisition interface uses an RF coaxial connector for easy connection and fixation, and can be replaced with wires to reduce costs;
the WS2812B three-color LEDs can meet common lighting needs;
temperature sensor, potentiometer, and rotary encoder provide multiple analog signal acquisition methods;
5V development board TYPE-C power supply;

additional notes:

the attachment includes the initialization HAL library project for the interface modules (to be open-sourced after completion);