Due to the skyrocketing price of microcontrollers, the only 6 pieces of F103 I have have been destroyed by constant desoldering, desoldering, and repeated use in my various projects. Long-term desoldering has also caused a certain degree of damage to the chips. Therefore, a mini controller was designed, which leads to some common IO peripherals through a 2.0mm female header, which can be plugged and unplugged for repeated use in various projects. At the same time, it is mini in size and equipped with independent IPS screen and system status indicator light (this group of IO is not reused)
CORE_F103DEV controller, 2.0mm female header for IO distribution
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