NRF24L01 module usage
CE: module control line, when CSN is low, CE and CONFIG register jointly determine the state of NRF24L01CSN: SPI chip select lineSCK: SPI clock lineMOSI: SPI data line (host outp...
A large current of about 20A needs to be carried on the PCB. In addition to increasing the line width, I heard that you can also make changes on the solder layer or paste layer. How to do it specifica...
The project requires a pair of bulk endpoints IN/OUT and a pair of interrupt endpoints IN/OUT to be configured for USB. The device class is vendor specific. After looking at the examples in USB LIBRAR...
This is the case. I am playing with rc522 and now want to read the serial number of the card. However, I found that it is a pair of garbled characters when read on 1602. I think it is because the base...
Reporter Lei Yu and correspondent Gao Xiaohan Editor's note China is currently in the midst of a wave of industrialization, urbanization, and modernization. Large-scale engineering projects and scient...