[i=s]This post was last edited by Hot Ximixiu on 2021-10-28 07:42[/i]1. OverviewIn the subsequent GPRS control, 3G module and other aspects, AT commands are used for control, and AT commands gradually
#define MQTTString_initializer {NULL, {0, NULL}}
What does this mean? I know that MQTTString_initializer is equivalent to {NULL, {0, NULL}}, but what does {NULL, {0, NULL}} mean?
From: https://forum.micropython.org/viewtopic.php?t=8316p=47337#p47337STM32H7/F7 supports custom polynomials, so it can calculate multiple CRCs, while STM32F4 can only calculate the fixed CRC32.@micro
1. Mission
Design a shortwave band all-digital transceiver communication demonstration system, requiring the communication modulation mode to adopt BPSK modulation, the modulation symbol rate to be fi
A common requirement in multimedia audio and video processing applications is to add watermark text, image logo, etc. to videos or images. The following is an introduction to ffmpeg:
FFmpeg is an open