The cut-off frequency is 50Hz. Does it mean to use the formula of 1/2pi*RC? I feel that the calculation is wrong. Do I need to consider the gain, amplitude-frequency and phase-frequency?...
1. During this process, I have been transplanting the LCD1602 library, but the software has used many solutions but none of them worked. Finally, I found the reason. The PTC4 pin is reused. On the FRD...
I found a clean vivi, transplanted it, put jtag on the development board, and then connected it with dnw.exe. After entering the vivishell, I used bon part 0 192k 1216k partition. After completion, I ...
The oximeter is a common portable medical electronic product. It is not big in size and has few functions, so it is not difficult to develop. However, although it is small, it has all the necessary fu...
Upper left: A development board for my own development, STM32F103RBT6, with 4 LEDs, 4 buttons, 1 serial port, a 24c02, I/O leads, and flying leads on the front. It can perform basic STM32 experiments....