Question update: 1. It is best to add 4.7K pull-up resistors to the SDA and SCL pins of 24C02. I didn't see any resistors on the schematic diagram of the 51 experimental board. I'm looking for informa...
[align=left][font=宋体]With the development of [/font]4G[font=宋体]industrial modules, more and more devices use [/font][font=宋体]4G[/font][font=宋体]industrial modules to achieve remote control. [/font][/al...
I recently tuned TI's ads1247 and used the analog SPI method. I checked the SPI signal level on an oscilloscope, but I couldn't read the register value. That's strange....
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Last week I tried the STTS7551 temperature sensor (portal: GD32E231 simulates IIC to drive STTS751 ), and then I started trying the LPS22HH sensor.
From the schematic diagram, they are all connected t...
1 Introduction
In recent years, there have been many major advances in the production technology and processes of automotive headlights, which have greatly improved the performance of automoti...[Details]
Different initialization between C8051F and 80C51 series microcontrollers
In the past 30 years, major electronic component manufacturers in the world have launched their own unique single-chip...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
Almost everyone in a student dormitory has a bedside lamp. But if you want to read for a while after turning off the lights and don't want to disturb your roommates' sleep, you may need a reading l...[Details]
The fluorescent lamps and energy-saving lamps we commonly use now have greatly improved luminous efficiency compared with the earlier ordinary incandescent lamps and have been widely used. With the...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems (GP...[Details]
For a long time, hackers have not had the opportunity to enter the control network of the car. But since the advent of Bluetooth technology and the use of wireless LAN bus systems, this situation w...[Details]
The circuit shown in Figure 1 provides programming voltage for an EEPROM under the control of an external DAC (not shown). You can replace the DAC with a potentiometer to create a universal power supp...[Details]
At present, products in the field of monitoring generally focus on the field level, that is, the client/server (C/S) model is adopted, the purpose of which is to ensure the stability and reliability o...[Details]
Introduction
The LED market has seen tremendous growth over the past few years. Advances in thermal dissipation, packaging, and processing have resulted in higher brightness, higher efficien...[Details]
When using discrete JFETs, the designer may need to adapt a large number of variable device parameters to a given transistor model. The square law equation is generally used as an approximate mod...[Details]
1. Explanation of some common English abbreviations in ARM
MSB: most significant bit;
LSB: least significant bit;
AHB: Advanced High-Performance Bus;
VPB: VLSI peripheral bus th...[Details]
1 Introduction
A typical application of flyback converter is to provide auxiliary power to IGBT driver in inverter. At this time, the switch tube of flyback converter needs to have relativ...[Details]
With the development of the national economy and the improvement of people's living standards, central air conditioners are increasingly widely used in civil and public buildings. While central air co...[Details]
The three-dimensional rotating LED, also known as POV LED, is an electronic product that uses the persistence of vision effect of the human eye to display graphics, animations and other information. I...[Details]
DIY/Open Source Hardware
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