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    9 electronic engineers must have an oscilloscope design

     

    The oscilloscope is a must-have for each engineer, and it is also a baby studies. It is very wide. Any periodic physical process that can become an electromatal can be observed with an oscilloscope. It converts the electrical signals that are invisible in the naked eye into a visible image, which is convenient for people to study the changes in various circuit phenomena. Share the design works of 9 oscilloscopics on the Circuit City, see if you have all your fantasies! 1, STM32F103 oscilloscope + signal source simulation information Perfectly ported to the positive atomic development board without modifying the program. The software is made based on UCOSIII + STEMWIN 5.26. The display uses a positive point atom 2.4 inch LCD screen. Use a touch screen as an interactive mode. The acquisitionable frequency is not more than 40 kHz, no flashes. The time interval, the amplitude range, and the upper and lower translation can be selected by the touch screen. Output square waves, sine wave, triangular wave, frequency, amplitude, and duty cycle are adjustable. Project link: https://www.cirmall.com/circuit/12400#/details Be 2, 1x1 20MSPS oscilloscope based on PIC32MZ We are designing a PIC32MZ-based oscilloscope, which is only 1 inch × 1 inches, including an OLED screen. The project is designed around the PIC32MZ EF processor. We use its internal ADC in a staggered mode to get a complete 20MSPS. We found that we can achieve approximately 1 MHz bandwidth in practice. Project Link: https://www.cirmall.com/circuit/10332#/details Be 3, DIY makes a digital oscilloscope belonging to Function reservation: Waveform generator: Use the STM32 to achieve a sinusoidal, triangular wave, and square wave output using the STM32. SD card waveform storage output. The system serial port can be connected to the computer output data, and the remote ISP upgrade can be implemented: easily upgrade the oscilloscope software by downloading the upgrade package file from the Internet. Project link: http://www.cirmall.com/circuit/5474#/details Be 4, STM32 digital oscilloscope source code + digital signal processing tutorial, supporting instance Since the scope involved in digital signal processing is too wide, a strong mathematical foundation is needed. This tutorial is the application, theoretical is supplemented. It is convenient for everyone to better master the basic DSP algorithm. The DSP library used in this tutorial comes from ARM, which supports all MCUs with CM0, CM3, CM4, and CM7. The hardware platform for this tutorial is the STM32-V5 development board for this tutorial. Project Link: https://www.cirmall.com/circuit/5012#/details Be 5, [open source] abroad, simple portability exemption design This article comes from the latest design, simple structure, and the basic structure of a single-chip microcomputer, and the old bird does not speak, even a bit of basic beginners can also act as an improvement challenge, all components have domestic, give Produce is convenient. Attachment content contains all circuit diagrams, PCB files, principles, basic software, and the author based on this architecture. Project Link: https://www.cirmall.com/circuit/4841#/details Be 6, [embedded course design work] mini-palm oscilloscope, STM32 master Embedded technical works are STM32-based micropal oscilloscopes, and the core technology is the control technology of ARM chip STM32F103C8T6 and the application of the chip resources and 4.2-inch LCD screen. The micropal oscilloscope identifies the voltage of the signal source by using the STM32 chip as the main control chip, by using the STM32 chip, and sampling the voltage data at a certain sampling period, and stores the chip in the queue. The waveform is displayed in real time by a 4.2-inch display. That is, the implementation of the function can be completed. Project Link: https://www.cirmall.com/circuit/4871#/details Be 7. Graduation design work sharing, digital oscilloscope circuit schematic and PCB source file, source program, Proteus hardware simulation As the digital oscilloscope, the device is displayed on the LCD after the input analog signal AD conversion value, and the measurement of the various parameters is realized, and the measured signal has a diversity, which may be an alternating signal, or the DC signal, the signal amplitude is large There is a small, these complex signals require some auxiliary circuits to adjust the conversion before performing the AD conversion. Project link: https://www.cirmall.com/circuit/3455#/details Be 8, [Graduation Design] Digital Oscaver Designed by STM32 Controller Based on the digital oscilloscope of the STM32 controller, it is mainly designed to design the front-end hardware circuit and the algorithm process and complete the expected purpose. The first is a complete system block diagram, and the module of each component is analyzed and designed, and the selected and related parameters of the scheme are calculated, and the components used by each module are given, and the modules required to be designed include front-end signals Conditioning, power supply section, controller interface peripheral circuit, TFT display section. The software design sections include, A / D sampling part, TFT display section, numerical processing section, UC / OS transplantation, and GUI design, to design a complete system to achieve the expected goal. Project Link: https://www.cirmall.com/circuit/3381#/details Be 9, [Graduation Design (Thesis)] Based on SCM STM32 Control, Android Displayed Portable Digital Oscillator Circuit Schematic, Source Code and Graduation Thesis The portable digital oscilloscope is performed based on the SCM STM32 controlled and displayed on Android. The STM32 single-chip microcomputer is a very cost-effective processor, up to 72m, which can meet the requirements of this design. The use of Android devices as a display platform is a characteristic of this design. The basic idea of ​​this design is that the data sampled by the ADC is processed by the single chip microcomputer, and then the waveform data is sent to the Android device via Bluetooth. At the same time, since the Android device uses a touch screen, the parameters of the oscilloscope can be set through the touch screen. This design uses Android devices to replace the LCD screen and use Bluetooth to perform data transmission, and fully utilize the hardware resources of the Android device. Project Link: https://www.cirmall.com/circuit/3376#/details

     

     

     

     

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