Hello everyone, I am a beginner. I am now learning to do a PCB board experiment. For the purpose of learning, I plan to use STM32 to connect multiple SPI devices at the same time.
I have no problem co...
Design principle and goal:The constant current source chip outputs constant current to the LED, and the single-chip microcomputer controls NMOS+PMOS to achieve LED high brightness for 200us, cycleProb...
When developing a vending machine, you need to connect the MDB banknote and coin reader and non-cash payment device to a computer, or an Android motherboard, or a PLC. Why do you have to use an MDB-RS...
Compared with traditional wired microphones, the biggest advantage of wireless microphones is that they are "wireless"! They are connected to the sound source through wireless carrier waves, which mak...
Why is the capacitance of DC12V (C1) so large?
Is it larger than the 24V and 32V capacitors below?
Is it necessary to choose such a large size? What is its function?...
I was sorting out old stuff and found two U shields that were given by the bank when I opened online banking. I remember using them a few times, but they were very troublesome to use. They didn't supp...