Please help me find out what is wrong with the circuit. The speaker can play sound when it is directly connected to the voice IC, but there is no sound after it is connected to the power amplifier. Th...
Hardware platform: STM32F746G-DISC
Development platform: KEIL_5.29
I will not introduce the detailed structure of MP3 files here , but only introduce how to use the MP3 decoding library. If you need t...
1. There are signals in and out, and there may be a clk. When in changes from low level to high level, out should output high level immediately. No matter how in pin changes, out should not change. Ho...
Every time the program of the board is changed, the board must be powered off, then powered on again, and the program must be burned again before it can run. This is inconvenient. Are there any improv...
Well, I participated in an event and was given a board for free, but the prerequisite was to debug and port it to an MCU, so I wrote the Arduino UNO. Then after I got it, I found that ST actually wrot...
jianshanST Sensors & Low Power Wireless Technology Forum
Recently, the 2019 Infrared Temperature Measurement New Product Launch Conference of AutoNavi Intelligent Sensor with the theme of "Making Infrared Temperature Measurement Easier" was held in Beij...[Details]
Yesterday, Huawei officially announced the release date and location of the Mate 30 series of mobile phones. The arrival of this new Huawei flagship is getting closer and closer. There are more...[Details]
CATL’s third-quarter performance exceeded its overall performance in the first half of the year, setting a record high in single-quarter net profit. On October 21, CATL released its third quarte...[Details]
0 Preface
The atmospheric boundary layer is the bottom part of the atmosphere. Atmospheric changes in the boundary layer have a great impact on human social activities. The importance of the atm...[Details]
1. For a transistor, it has three working states. When it is placed in a circuit, the first thing we need to do is to determine its working state under the given parameters. (In analog electronics ex...[Details]
With the development of the times, science and technology are constantly improving, and new science and technology are widely used in various fields. Higher education is an important way to cultivat...[Details]
Introduction: There is a project using STM8S103F3. Because it is battery-powered, it needs to enter the halt state and use GPIO external wake-up. Because it is the first time to use STM8S, I took a l...[Details]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]
In Africa, electricity demand is far outstripping supply, with Nigeria facing a 173,000-megawatt shortfall (the country currently needs about 180,000 megawatts), forcing the country to import large...[Details]
New PC805 is the industry’s first system-on-chip (SoC) to support 25Gbps eCPRI and CPRI fronthaul interfaces, removing barriers to low-cost open radio units
Beijing, China, November ...[Details]
Ericsson, a Swedish fifth-generation mobile communications (5G) base station equipment manufacturer, announced on its official website that it has won 95 commercial 5G contracts at this stage, surpas...[Details]
More than half of the models currently on sale have car-mounted systems: high-definition large screens, 8155 chips, 5G baseband, and an extended ecosystem... In terms of size, speed, scalability, v...[Details]
The application fields of LED (light emitting diode) are steadily expanding , such as signal lights, electronic signs, display backlights, lighting products, etc. It is estimated that in the near fu...[Details]
The echo signal received by any radar receiver contains target echo and background clutter. To detect targets in environments containing background clutter, radar systems must have long-range and wid...[Details]
On November 4, the HuanDa 97.5MW/390MWh shared energy storage power station project started construction in the Beidaqiao new energy planning area of Guazhou County. Image It is understood that this...[Details]