PT100 temperature measurement circuit

Introduction: PT100 temperature measurement circuit, bridge + LM358 operational amplifier measurement signal

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AD5933 verification board

Introduction: AD5933 verification board can be measured alone through a jumper cap, or it can be measured driven by a microcontroller.

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[New version of program in preparation] Infrared thermometer gun

Introduction: MLX90614-based thermometer (to be tested) During the current epidemic, electronic forehead thermometers are in short supply, but as an electronics enthusiast, why can’t you make your own one?

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[Hebei University of Science and Technology "Muxing Lake Cup" Science and Technology Competition] R measurement based on STM32F103

Introduction: Hebei University of Science and Technology School of Electrical Engineering "Muxing Lake Cup" The 13th College-Level Science and Technology Competition: Introduction to entries for a simple RLC test bridge. The resistance of R can be easily measured and displayed through a 0.96-inch OLED screen.

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frequency doubler

Introduction: Frequency doubler, doubles the input frequency

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TYPC C interface 8-channel logic analyzer (QFN)

Introduction: This is an 8-channel logic analyzer based on CY7C68013A-56LTXC microcontroller, TYPEC interface, maximum sampling frequency of 24MHz, 8 channels.

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TYPC C interface 8-channel logic analyzer

Introduction: This is an 8-channel logic analyzer based on CY7C68013A-56PVXC microcontroller, cloned from Seleae products. It adopts TYPC-C interface, 24MHz crystal oscillator SMT package, adds PA0 and PA1 signal indicators, and the device is deployed on one side of the PCB.

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Ultrasonic range finder

Introduction: STC89C52 is an STC series microcontroller that enjoys high value in the field of automatic control. It has been well received by electronic design enthusiasts for its ease of use and versatility. This design mainly uses STC89C52 microcontroller and ultrasonic sensors to complete the production of ranging alarm system.

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USB differential analog signal sampling front-end made with CH552+HX712

Introduction: Anyway, I just don’t want to spend money to make something like this.

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Analog sampling toys made with CH552+ADS1255

Introduction: True random number generator v2, v1 at https://oshwhub.com/libc0607/hx71x-tmr-afe-v1

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[Guangdong University of Technology] Simple transistor amplifier

Introduction: This design is a Class B power amplifier circuit that obtains waveforms with cut-off distortion and saturation distortion with a peak-to-peak value greater than 2V. The acquisition part uses STM32F103, and uses ADC to collect voltage waveforms and measure data. (PA1 is connected to signal output, PA2 is connected to input measurement, GND is connected to GND)

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[Changshu Institute of Technology] Differential amplifier circuit tester yyp8186

Introduction: Designed and produced a triode differential circuit characteristic tester to test the characteristics of differential signal amplifier circuits.

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[Zhengzhou Technology and Business College] Simple electronic load + Xiao Gu is right

Introduction: Simple electronic load

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[North China Electric Power University] Simple Circuit Characteristics Tester

Introduction: Test some parameters of the amplifier circuit

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North China Electric Power University 14th Electronic Design Competition 2021

Introduction: This circuit scheme is based on arduino master control and uses DAC to measure the input and output port voltages to obtain amplification, input and output resistance and other parameters.

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[Tianjin University of Technology] Differential amplifier circuit tester Xunmeng

Introduction: The first prize project of the 2021 Tianjin University of Technology on-campus selection competition is open source

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[Changsha University of Science and Technology]AD9958

Introduction: Signal generator based on AD9958

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VL53L1 laser ranging

Introduction: This module has been printed and verified. This module is ST's long-distance ranging sensor module. The new generation of long-distance ranging time-of-flight laser sensor is based on ST's FlightSense™ technology. It has ultra-low power and an operating current of microampere level.

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MPU6050 attitude sensing module

Introduction: This project has been prototyped and verified. MPU6050 has a built-in DMP attitude calculation module, which leads to VCC GND INT SDA SCL. As for XDA Calculate.

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USB voltage and current meter STM32+INA226

Introduction: USB voltage and ammeter based on STM32.

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