Introduction: The MPU9250 from Longqiu was preliminarily tested using esp32 micropathon. Key words: MPU9250, I2C, ESP32, software I2C
there are several on hand from last semester MPU9250 sensor of Longqiu , in order to use it to do experiments in the future, the esp32 micro Python experimental board is us ...
Posted by tonypr100 on Tue, 21 Sep 2021 03:26:44 +0200
C # solve the problem of serial port data loss
C # serial class (SerialPort) is a new class in. NET Framework version 2.0. This class encapsulates the serial port operation, thus providing a simple method for serial port communication.
However, in the actual application of serial communication, the problem of data loss will occur in the data ...
Posted by .-INSANE-. on Mon, 20 Sep 2021 15:54:24 +0200
Use esp32 one + GPS module + OLED small screen to make a portable low-power velocimeter
1, What is Esp32 One?
Esp32 One is a development board compatible with raspberry pie pin developed by Weixue electronics based on the custom pin of Xtensa LX6 dual core processor.
2, Using hardware
Esp32 One x1 L76X GPS Module x1 0.96 ...
Posted by vMan on Fri, 17 Sep 2021 00:22:39 +0200
Basic knowledge framework
Many peripheral manufacturers provide peripherals for Cortex kernel. The differences brought by different peripherals lead to great difficulties in software writing or transplantation. Therefore, Arm company and chip manufacturers jointly launched CMSIS standard. Its full name is Cortex Micro ...
Posted by eskick on Wed, 15 Sep 2021 22:17:34 +0200
1. STM32 systick ticking timer
Systick timer is a simple timer. For ST cm3, CM4 and CM7 core chips, systick timer is available. Systick timer is often used as delay or heartbeat clock of real-time system. This can save MCU resources without wasting a timer. For example, in UCOS, time-sharing multiplexing requires a minimum timestamp. General ...
Posted by tasistro on Tue, 14 Sep 2021 05:54:02 +0200
Explain the function of PWM initialization of 32 in depth
I'll post the code directly first
void TIM1_PWM_Init(u16 arr, u16 psc)
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE); //E ...
Posted by newbreed65 on Mon, 13 Sep 2021 00:46:05 +0200
The flow of CAS operations described above is not difficult. But the above instructions are not enough. Next, I will introduce a little more background knowledge. With this background knowledge, we can better understand the following content.
2. Background introduction
As we all know, the CPU transmits data through bus and memory. In a mult ...
Posted by lynn897 on Sun, 12 Sep 2021 08:28:59 +0200