1. LTE Technology OverviewLTE is a new generation of communication system based on multiple antennas (MIMO) and orthogonal frequency division multiplexing (OFDM) launched by 3GPP, a mobile communicati...
PCB drilling is a process of PCB plate making, and it is also a very important step. It is mainly to punch holes in the board. For routing needs, a via is needed. For structural needs, a hole is drill...
In embedded system design, SD/TF cards are occasionally used to store some historical data. It is very convenient to use, but the following confusions are encountered in the design:The system stores d...
Arteli Technology's AT32F415 series of value-for-money USB OTG microcontrollers are equipped with a 32- bit ARM Cortex-M4 core, a CPU operating speed of up to 150MHz and a built-in digital signal proc...
This wave of trouble in Chengdu has been going on for more than 10 days. The situation in my district is particularly serious. We have been strictly investigating people wandering around Chenghua Dist...