06 Serial communication test (including Bluetooth test)
PrefaceIn the previous few articles, we have had a preliminary understanding and implementation of some resources of the development board. Next...
The following figure is a window comparator. Vref is variable from 0 to 5V. The voltage on R2 is guaranteed by an external adder to be always 100mV higher than Vref. Theoretically, when Vref is a cert...
Computers are composed of hardware and software. Hardware is what we can see, such as CPU, memory, motherboard, chipset, graphics card, network card, and sound card. Software is composed of applicatio...
For example, if the sampling rate of the MCU ADC is 200KSPS, is it equal to 200KHZ? Does it mean 200K samples per second? If the crystal oscillator is 11.0592MZ, how to determine whether the clock fre...
Both voltmeter and oscilloscope are commonly used display instruments. They have the advantages of stable performance, easy maintenance, flexible use, and high reliability. What is the difference betw...[Details]
What is a constant current source?
A constant current source is a power source that can output a constant current. In Figure 5, r is the internal resistance of the power source E, and ...[Details]
AVR is the first true RISC structure 8-bit microcontroller launched by Atmel. It has an advanced instruction set and single-clock cycle instruction execution time, and a data throughput rate of u...[Details]
1 Introduction
The shape parameters and spatial distribution information of actual cracks in materials are becoming increasingly important in nondestructive defect assessment. They indicate th...[Details]
With
the improvement of
LED
in almost every aspect, such as luminous performance and cost, the application scope of LED is getting wider and wider, but the penetration ratio in various appli...[Details]
Today, after I changed one of my programs into multiple files, the following alarm appeared: not in formal parameter list. I searched for a long time but couldn't solve the problem. Later, I found so...[Details]
CT scan shows that there is thickening and hardening of the cortex in the upper part of the lesion. Peripherally, there is an amorphous mineralized soft tissue component with a lobed shape, which is ...[Details]
2-1-22-2. Measurement of volt-second capacity of switching transformer
As an important component of the switching power supply, the switching transformer should be measured for various tec...[Details]
After configuring the system clock of the s3c2440, we control the serial port. The reason why the serial port is placed so high is because the serial port will bring us more information. When there i...[Details]
Samsung Electronics only launched the Galaxy Note10 5G version in South Korea, so the South Korean government asked Samsung Electronics to launch the LTE version, but Samsung Electronics has been slo...[Details]
I searched the entire Internet for the RTC crystal oscillator of STM32 and summarized it as follows Software: In many programs in the past, there was no RTC_WaitForLastTask(); statement in the RTC in...[Details]
As an important entry point for the layout of smart homes , the smart speaker industry has attracted many leading manufacturers and Internet upstarts to enter the market: in addition to leading comp...[Details]
This month, Xiaomi released a new trendy series of mobile phones, Civi. After Civi, Xiaomi will have another new mid-to-high-end product to be launched within the year. On September 29, a new...[Details]
On October 14, Neijiang Vice Mayor Bi Sheng led a team to the Chuanwei Lianjie Base to care about the development of the enterprise. Neijiang Municipal Government Deputy Secretary-General Peng Yun,...[Details]
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