In the DC-DC mode of BLUENRG, the voltage output is only about 0.5V, and the output of LDO is also only about 0.5V. The MCU cannot operate normally, and the SWD interface cannot be detected using J-li...
All the components I used are from MAXIM. Although the workmanship is not very particular, you can take a look at them for reference. The pictures were supposed to be uploaded tomorrow, but because my...
Sometimes the unused pins of a chip cannot be left floating, and a pull-up resistor or a pull-down resistor is needed to make it at a high or low level. Why not connect it directly to the power supply...
The op amp is used as a comparator, powered by a single 0~5V LM324 power supply, the negative pin is connected to a +2.5V DC potential, and the positive pin is connected to a ±8V signal. For some reas...