I would like to ask about the issue of sending MMS via GPRS using the SIM300 module. Thank you!!! The situation is this: I bought a SIM300 board and connected it to the computer via the serial port. I
RF devices include a lot of content, such as connectors, amplifiers, switches, transceivers, antennas, filters, etc. Under the background of the 5G technology wave, more and higher technical requireme
The final exam is coming soon. I have been delayed in my studies due to some things. I am at a loss. I have a test paper. If anyone can help me and give me the answer, I will reward you handsomely. Th
This article introduces how to use the microphone on the RVB2601 development board to collect surrounding sounds and record the maximum value per unit time to indicate the ambient noise level. For a m