Core MCU: STM32F103C8T6
Design of IIC control for Ai Tomb Type 584
Onboard 3V3 DCDC and LDO
Onboard an additional IIC interface
Onboard SWD/serial download port
Onboard CH340C
The pinout of A6 A7 B0 B1 B10 B11 needs to be expanded.
There doesn't seem to be any additional features.
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