Tag:High-level

  • Balance trolley built with msp432 (I)

    Time:2022-4-30

    1. Foreword   The author is a sophomore who once neglected one year of study and now keeps learning,Therefore, I hope to discuss and raise any questions, and your support is my driving force. As for the steps of hardware construction, the author doesn’t mention too many online schemes. The author uses encoder motor and tb6612 […]

  • Lianshengde hlk-w806 (V): report on w801 development board

    Time:2022-4-19

    catalogue Lianshengde hlk-w806 (I): ubuntu20 04 development environment configuration, compilation and burning instructions Lianshengde hlk-w806 (II): description of development environment configuration, compilation and burning under win10 Lianshengde hlk-w806 (III): key free automatic download and reset Lianshengde hlk-w806 (IV): software SPI and hardware SPI drive st7735 LCD Lianshengde hlk-w806 (V): report on w801 development board Lianshengde […]

  • Lianshengde hlk-w806 (VII): compatible development board luatos air103

    Time:2022-4-11

    catalogue Lianshengde hlk-w806 (I): ubuntu20 Description of compiling and burning environment, 04 Lianshengde hlk-w806 (II): description of development environment configuration, compilation and burning under win10 Lianshengde hlk-w806 (III): key free automatic download and reset Lianshengde hlk-w806 (IV): software SPI and hardware SPI drive st7735 LCD Lianshengde hlk-w806 (V): report on w801 development board Lianshengde hlk-w806 […]

  • Pit filling – about IIC communication

    Time:2022-1-25

    ​01. Overview In previous articles《Stm32iic details》The IIC protocol is explained in detail, and the use is the official Manual of NXP. The demo example uses IIC to read the RTC chip, which runs normally without any problems. And updated《IIC stepped pit》, describes the problems encountered when using IIC to read RTC chip, and solves them […]

  • STM32 SPI details

    Time:2021-12-10

    1. SPI introduction SPI specifies that the communication between two SPI devices must be controlled by the master device (slave) A master device can control multiple slave devices by providing a clock and selecting a slave device. The SPI protocol also stipulates that the clock of the slave device is provided to the slave device […]

  • STM32 IIC details

    Time:2021-12-5

    1. IIC definition IIC is inter integrated circuit bus. This bus type is a simple, bidirectional, two-wire and synchronous serial bus designed by Philips semiconductor company (later acquired by NXP) in the early 1980s. It is mainly used to connect the overall circuit (ICS) , IIC is a multi-directional control bus, that is, multiple chips […]

  • IIC stepped pit

    Time:2021-12-4

    When reading it8563we, the reading is correct for the first time, wrong for the second time, correct for the third time, and wrong for the fourth time…… After reading successfully, the SDA signal is not pulled up correctly, and the level is only about half. Read again. When the host sets the read mode, it […]

  • STM32 PWM output

    Time:2021-11-26

    This paper will introduce the output PWM through the timer of STM32. If you are not familiar with the timer, you can see the previous article《Detailed explanation of STM32 basic timer》, the basic functions of the timer will not be explained in detail. 01. Introduction to PWM Definition of PWM: pulse width modulation (PWM) is […]

  • Manual decomposition experiment of MCU pin extension chip 74HC595

    Time:2021-9-10

    Let’s look at the effect first 74HC595 is a commonly used serial to parallel chip, which supports chip cascade to realize the function of a small number of IO ports controlling the output of multiple IO ports Pin 14: DS, serial data input pin Pin 13: OE, output enable control pin, it is low power […]

  • Neon lamp based on stc51 single chip microcomputer

    Time:2021-8-27

    Neon lamp based on stc51 single chip microcomputer Design requirements: Use PWM to drive 8 LED lights The human eye can’t see all the lights go out The light should have animation effect Design Overview:    according to the design requirements, in order to more intuitively explain the pulse width modulation technology (PWM), the animation […]

  • Build Haas Mini donkey smart car in 1 hour

    Time:2021-7-2

    Brief introduction: at the 2020 yunqi conference, Alibaba cloud released a robot “Little Donkey”, which instantly stirred up a thousand waves. Some concepts such as unmanned vehicle, intelligent logistics, robot and so on became hot again. Taking advantage of the “Little Donkey” and the hot Haas, we have launched a more people-friendly “Little Donkey”, which […]

  • STM32

    Time:2021-4-10

    GPIOx_CRL(x=A~E)Address offset: the initial address of the port configuration plus the offset address is the address of the special registerGPIO general I / O 8 working modes 1. Floating input mode:(1) When gpiox_ CRL or gpiox_ When the CNF [1:0] bit of CRH register is set to 01 and the mode [1:0] bit is set […]