T12-858 universal soldering station hot air gun electric soldering iron two-in-one

Introduction: Based on the open source t12 858 design, the circuit board is redrawn to an 88*38*120 aluminum casing, with the smallest volume and 1.4-inch tf tspi interface and iic interface reserved.

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Small passive DC constant current electronic load

Introduction: A small DC adjustable constant current (CC) electronic load for testing constant voltage DC power supplies.

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USB voltage and ammeter

Introduction: USB voltage and ammeter based on STM32.

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Small adjustable constant voltage electronic load

Introduction: Low power constant voltage electronic load.

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Transistor tester (with case version)

Introduction: M328 transistor tester market general component version.

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ATX power tester

Introduction: ATX power supply tester, used to detect whether the ATX power supply is working properly

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Active DC constant current electronic load

Introduction: Active DC constant current electronic load, using Intel 775 radiator, designed power 90W, with built-in voltage and ammeter.

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stm32 oscilloscope

Introduction: An oscilloscope based on stm32c8t6. The oscilloscope has a sampling rate of 48Mhz and uses a fifo cache chip for buffering. The total cost is about 150 yuan. Note 1: Availability has not been verified in practice. Note 2: The code has not been written yet.

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GenshinImpact Genshin Ruler

Introduction: Homemade Genshin Impact physical ruler

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Four-way speed digital tube display

Introduction: 4-way measurement display

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24-bit digital tube display 0.56 inches

Introduction: 24-bit digital tube display, and 64 LED running lights

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[Hangshun Training Camp] Hangshun hk32f030 smart voltage and ammeter

Introduction: Use hk32f030m to make a smart voltage and ammeter, use wifi chip to drive full-color ips screen and run lvgl. The two are complementary, one has strong performance, less io thieves, the other has more io ports, average performance, similarities, cheap and affordable

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STC8A8K

Introduction: This project is a BitBoy game console with a 0.96-inch OLED display.

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nrf52832DEV

Introduction: This project is Nordic nrf52832 development board

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51 microcontroller automatic programmer

Introduction: This project provides an automatic download solution for 51 microcontrollers. There is no need to turn off the power switch (cold start programming) when downloading. You only need to connect the serial port of the microcontroller, and then click the official STC "Detection" and "Download" buttons to achieve it. Automatic recognition and download of chips.

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[Meiyan Electronics Production] HLW8032 single-phase power acquisition (UART) module-LMY-03

Introduction: Relays are not used in many places, so this module deletes the relay part based on LYM-01.

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[Meiyan Electronics Production] Simple LCR instrument design

Introduction: Design of a simple resistance, capacitance and inductance measuring instrument based on STM32.

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[DIY Design] Based on HLW8032 electric energy metering system

Introduction: The minimum system of L51-01 microcontroller is a system composed of AT89S51/52 or other 51 series compatible microcontrollers and peripheral circuits such as power supply circuit, crystal oscillator circuit, reset circuit and program download.

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[DIY Design] WIFI Smart Socket Learning Board

Introduction: A smart socket system composed of STM32 as the controller, HLW8032 metering chip to collect electric energy, Alibaba Cloud as the medium, and ESP-01M wifi module to transmit data.

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[DIY Design/Graduation Project] Temperature and humidity controller based on SHT11/DHT11

Introduction: Greenhouse temperature and humidity control system based on STC89C52 microcontroller and SHT11 temperature and humidity acquisition module.

Schematic PCB