How does DSP2812's SPI read optical encoder information? The problem now is that SPI sends control instructions to the optical encoder, the optical encoder can feedback information, and the oscillosco...
The access control system is actively swiping cards. When swiping a card, data is transmitted to know whether the card can be modified. That is, the card is always placed in the card reader, and the c...
During this period, mpy has made many improvements to the STM32L4, STM32H7 and other series, so I wanted to try whether the DFU mode is normal. After recompiling the new firmware, I found that the DFU...