Longmen Grottoes are located in the Yique Gorge, 6 kilometers south of Luoyang City. Because it is located in the south of the capital, the ancient emperors called themselves "the true dragon emperor"
PrefaceAfterthe release of Bluetooth 5 protocol, Nordic took the lead in launching the chip nrf52840 that supports ble5.0 protocol. The powerful configuration is simply outrageous for me who has used
I browsed around on Taobao but couldn't find it. The input is a 5V USB plug, and the output is 2 wires (or terminals) of 1.5V. It's not hard to make it yourself, but I don't want to work hard.
Many engineers have started to replace domestic chips in the past two years or even earlier.
More and more domestic chip brands are known by engineers
Engineers are also constantly exploring reliable
1. Absolute value function(1) _abs()C code: int _abs(int src)Assembly: ABSfunction: Calculate the absolute value of 32-bit data(2) _labs()C code: int _labs(long src)Assembly: ABSfunction: Calculate th