This project designs an RGB lighting ring based on stm32f103c8t6. The board is very small, a circle with a diameter of about 36mm. Leading out the swd debugging interface, you can program the 8 RBG small lights to flash in a specific pattern. There is also a button on the back of the board, which can be programmed to be used as a switch, to adjust the light brightness, or to change the flashing rules of the small lights. An external 3.3V stable power supply is required for use. There is also a hole with a diameter of 3mm on the board, which can be used as a key pendant and other decorations.
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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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