I recently used the Bluetooth module HC-05. I first set the serial port baud rate to 38400, entered the AT command, and
Set the Bluetooth module to master mode, then power it on again, set the baud ra...
[size=4]The function parameter can be not only integer, real, character, etc., but also pointer type. Its function is to transfer the address of a variable to another function. [/size] [size=4] [/size...
First, let's present a low-power one-button power on/off circuit. The characteristic of this circuit is that when the power is turned off, all transistors are cut off and almost no power is consumed.
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1. The transmission distance of traditional Bluetooth ranges from tens of meters to hundreds of meters, while BLE is set at 100 meters (actually not that far, it is relatively stable within 50 meters,...
The AD5933 specification sheet mentions temperature measurement: "The measure temperature command is used to start the temperature measurement. When measuring temperature, the device does not need to ...
[i=s]This post was last edited by qwqwqw2088 on 2019-3-12 14:27[/i] [align=left][color=rgb(51, 51, 51)][font="][size=4][b]New Concept Analog Circuits - "Signal Processing Circuits"[/b][/size][/font][/...
In the figure, RP1 is the audio adjustment potentiometer, RP2 is the volume control potentiometer, and resistor R is an external negative feedback resistor. The circuit uses a special microphone for ...[Details]
AGV mobile
robot
is a self-driving mobile robot used for material handling and transportation in factories, warehouses, logistics centers and other places. AGV is usually equipped with
...[Details]
Inductors are commonly used components in switching power supplies. Since their current and voltage phases are different, theoretically, the loss is zero. Inductors are often energy storage compone...[Details]
1. Electrical Testing
During the production process
of PCB
boards, it is inevitable that external factors will cause electrical defects such as short circuits, open circuits and leakage....[Details]
On August 19, staff from the State Grid Hunan Electric Power Co., Ltd. inspected the power supply of the China Mobile Hunan Company's Qingjiaxiang resource point base station in Kaifu District, Cha...[Details]
For large companies with tens of thousands of employees, the difficulty of internal auditing employee reimbursements can be imagined. Fortunately, the maturity and widespread application of RPA techn...[Details]
The global warming crisis and energy shortage are further promoting the popularization of LED lighting. LED lighting is environmentally friendly, has high light efficiency and long life, but in com...[Details]
Recently, Fourier Electronics Co., Ltd. (hereinafter referred to as "Fourier"), which focuses on the field of audio signal chain, announced the completion of a RMB 100 million Series B financing. The...[Details]
This paper mainly studies the design of the hardware structure and software structure of smart watches, and studies the design of Android mobile phone APP. The hardware and software functions of the ...[Details]
With the development of electric vehicles today, in addition to joint venture automakers such as Volkswagen and Toyota, which are also launching models with a range of 400km, the mainstream range of ...[Details]
Dialog Semiconductor, a leading supplier of battery management, AC/DC power conversion, Wi-Fi, Bluetooth Low Energy (BLE), and industrial ICs, has announced that it will further expand its collaborat...[Details]
Real smart home, real remote control, mobile phone can control it with internet, WiFi traffic can be used Material: 1. MCU minimum system, MCU program 2. WiFi module (ESP8266) is normal, WiFi firmwar...[Details]
On September 15, Dinglong Co., Ltd. issued an announcement stating that the company plans to invest 200 million yuan to establish Hubei Dinglong Advanced Materials Research Institute Co., Ltd. (herei...[Details]
Apple today announced several improvements to the new iPhone 11 Pro and iPhone 11 Pro Max, including a new triple-camera system, the A13 Bionic chip, and more. Apple didn’t highlight the demo o...[Details]
Since Uboot2011.06 has good support for S3C6410, we use Uboot2011.06.
1. Porting environment
Host: VMWare-ubuntu
Development board: ok6410—512M nandflash, Kernel: 2.6.30.4
u-boot: u...[Details]