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STM32-based four-rotor aircraft design
5.0
Selection stm32f103zet6 MCU, sensor mpu6050,DMP attitude clearing, wireless communications nrf24l01, Cascade PID algorithm
625391159
2016-11-09
0
1
LED advertisement board, 123
no vote
123456789101121314151617181920 equivalent circuit looks simple, in Figure 1 foot heightening level, then abcdefgh and low level, the first line of the light emitting diode will be bright, but the actual device pins and not a row pin according to the order of 12345678 arrangement and another row of pins in the abcdefgh order arrangement. The actual pin is usually chaotic, I heard that the pin distribution technology is not open, I do not know is true or false, but we can test the distribution of pin. By 2012-10-25 late determination, above a row of HG2A4FDI below a row of 57BC8E63 (in the device front by the left to the right of the order)
625391159
2016-08-23
0
1
Music box of single chip microcomputer
no vote
Based on 51 single-chip music box design, using C language programming, to achieve the pronunciation of the 16 notes,
625391159
2016-08-23
0
1
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