[i=s]This post was last edited by xiaxingxing on 2021-10-7 20:24[/i]As shown in the figure below, the cutoff frequency of the second-order SK low-pass filter is 14.5kHz. According to the formula in th...
Bluetooth beginner tipsIf you have read this far, then the painful concepts and the fucked-up development process above have already been disgusting, so let me give you some advice for beginners of Bl...
This is a network temperature sensor made with AT89C2051 and DS18B20. It can send the measured temperature to the computer via RS232 bus, or use RS485 bus to achieve network communication. The compres...
TIDM-CAPTIVATE-MSP432DescriptionThis reference design demonstrates how to use the CapTIvate software library communication module to connect an MSP430 MCU with CapTIvate technology to an MSP432 MCU ho...
1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows: The output is as follows: It can...[Details]
When the domestic discussion about "ZTE being banned" was hot, Alibaba officially announced the acquisition of chip supplier
Zhongtianwei
, but the investment amount was not disclosed. At t...[Details]
introduction STM32 has many registers, which are difficult to remember, so the official packaged two sets of library functions. One is the standard library, but the official has not updated it on F7,...[Details]
What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]
At the beginning of the new year of 2018, after the release of the national photovoltaic policy, we found that the state’s support for village-level poverty alleviation power stations has not weake...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[Details]
Introduction: As a power electronic device, the photovoltaic inverter mainly converts the direct current generated by the photovoltaic module into alternating current. Because there are thousands o...[Details]
Use the STM32 timer input capture module to control 3-way ultrasonic sensors. The ultrasonic sensor used this time is the common HC-SR04, which is often used in the obstacle avoidance system of smal...[Details]
STM32 ADC multi-channel conversion Description: Use ADC to continuously collect 11 analog signals and transfer them to memory through DMA. ADC is configured to scan and continuously convert mode,...[Details]
T1 or T2 are two timers/counters of MCS-51 microcontroller. The first method can use two timers/counters to generate rectangular waves. In order to save interface resources, the second method is used...[Details]
Getting to the bottom of blockchain
Since last year, blockchain has become the hottest word in both the financial and non-financial circles. Some people use it as a gimmick to engage in va...[Details]
LiDAR is a comprehensive light detection and measurement system. Compared with ordinary radar, LiDAR can provide high-resolution radiation intensity geometric images, distance images, and speed im...[Details]
A group of young people who looked like they were in their twenties or thirties were squatting on the edge of the factory flower bed. Some were looking at their phones helplessly, while others were...[Details]
1. ATMEGA128 Data Sheet Watchdog Timer The watchdog timer is driven by an independent 1 MHz on-chip oscillator. This is a typical value at VCC = 5V. See the characteristic data for typical val...[Details]
Analog electronics
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