Based on the EFM8LB12F64E core board, it comes with a 72M high-speed crystal oscillator, 64k program space, 12-channel 14-bit high-precision ADC, 4-channel 12-bit precision DAC, and the most powerful 51 microcontroller. The design has been redrawn and the cover is the original design. The IO voltage is 3.3V. The corresponding full register definition header file can be uploaded, and more reference designs will be updated later.
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