Electronic clock module schematic + PCB diagram (2012 version)

Electronic clock module schematic diagram + PCB diagram (2012 version), if you are interested, you can download it and take a look.

Schematic PCB

20MHz handheld dual trace pocket oscilloscope based on TMS320F28033

With TMS320F28033 as the core, it is composed of signal amplification circuit, signal acquisition circuit, data storage and processing module, system control and display module and other parts.

Schematic PCB

Dual channel signal generator, manual welding

High reference value, the 50-year-old work of FatFS author ChaN

Schematic PCB

Graduation project based on 51 microcontroller electronic code lock design (schematic diagram, source program, thesis, etc.)

The system consists of STC89C52 microcontroller, 4*4 matrix keyboard, buzzer, reset circuit and crystal oscillator circuit, relay, etc. The 4*4 keyboard is mainly used for password input and modification, buzzer alarm, reset circuit and crystal oscillator circuit with STC89C52 The single-chip microcomputer constitutes the smallest system of single-chip microcomputer. It has functions such as setting and modifying 6-digit user passwords, alarming for incorrect input, and alarming for incorrect passwords. This system is low in cost and practical in function.

Schematic PCB

the-little-bili-tv: Bilibili little TV based on ESP32

This Bilibili small TV uses esp32 as the main control, lvgl GUI interface design, and is developed based on idf4.0 to support smartconfig or WeChat airkiss distribution. Its functions include: network connection display, network acquisition time, weather display, temperature and humidity collection, Fan count display, mqtt temperature and humidity upload, etc. All software and hardware are open source.

Schematic PCB

Smart IoT student dormitory based on RSL10

In view of the characteristics of students' dormitory life, an IoT smart dormitory system is built using ON Semiconductor's RSL10 low-power Bluetooth chip to implement several functional nodes, and a very convenient WeChat applet is used on the control end to monitor data. Through the functional units composed of RSL10 boards for data collection or action control, and realizing the monitoring function of WeChat applet, this project is a simple intelligent control solution for student dormitories, which can be used as courses/graduation projects for students in related majors. Or a case study of ON Semiconductor University planned courseware.

Schematic PCB

Design of bus passenger counting system based on infrared technology

    The system uses TI's MSP430F149 microcontroller as the core controller. This microcontroller has a 16-bit CPU integrated register and constant generator, which can maximize the code efficiency of the microcontroller. It integrates JTAG and supports online programming; two universal full-duplex Serial synchronous/asynchronous communication interface; PWM control output; external interrupt input interface. The microcontroller is responsible for sampling the bus door opening and closing signals, turning on or off the infrared counting module, recording the number of people getting on and off at each bus stop, storing the data on the number of people getting on and off at each bus stop, and transmitting the stored data to the computer.

Schematic PCB

An open source multimeter suitable for DIY

This project started with STM32F1 and now it uses STM32F3.

Schematic PCB

NES-Game - Homemade handheld game console based on ESP32

Based on ESP32 and ATtiny861 to build a Nintendo NES game emulator handheld console with complete materials for making the project

Schematic PCB

Unattended automatic watering system

Grapevines use a lot of water and the soil dries out quickly, so they need to be watered twice a day. This project is about using an unmanned watering system to water flower pots.

Schematic PCB

AlphaPose-real-time full-body multi-person pose estimation and tracking system

It is the first open source system to achieve 70+ mAP (75 mAP) on the COCO dataset and 80+ mAP (82.1 mAP) on the MPII dataset. To match poses corresponding to the same person in frames, an efficient online pose tracker called Pose Flow is also provided. It is the first open source online pose tracker to achieve 60+ mAP (66.5 mAP) and 50+ MOTA (58.3 MOTA) on the PoseTrack Challenge dataset. AlphaPose supports Linux and Windows.

Schematic PCB

20 ink screen daisy chain gameplay

Created a daisy chain through the serial port

Schematic PCB

High-precision LED electronic clock design based on STM8 (all design materials)

Based on STM8S003K3 microcontroller, it has alarm and chime functions and automatic light sensing function.

Schematic PCB

Sugar glider health management system based on RSL10

The project uses RSL10 to build a sugar glider health monitoring system. With good exercise and diet, my little jelly (sugar glider) can grow up healthily.

Schematic PCB

Open source DIY: WiFi, 4G, 5G remote control drones/unmanned ships, image transmission/data transmission/remote control integration!

Use an idle Android phone to place it on a drone or unmanned vehicle/boat to realize wifi, 4G, 5G remote control of the drone, image transmission/data transmission/remote control integration. Supports APM and Pixhawk flight control (as long as it is compatible with Mavlink protocol), supports RTK differential GPS high-precision positioning (optional function, requires ublox NEO-M8P GPS module and Qianxun FindCM service account).

Schematic PCB

Environmental expert’s smart watch

The work is mainly based on smart watches as a product that contributes to mine operations. The shape of [RSL10-SENSE-GEVK] is perfect for making a watch. All the onboard peripherals are utilized. The watch will collect data every once in a while and store it in the onboard external Flash. A total of fourteen days of historical data can be stored. If the power consumption is reasonably designed, it can Replace the button battery every two months. Normally worn in the normal mode, you can enter the downhole mode by pressing the button. In the downhole mode, the surrounding environment will be detected. When the environment reaches a bad situation, it will enter the alarm state. At the same time, when the person going down the pit feels uncomfortable, he can long press the button to enter the call for help state.

Schematic PCB

Lubricating oil detection based on dielectric principle

This design uses LM3S811 as the processor of the lubricating oil dielectric constant detection device, designs the AD5933 impedance measurement circuit, extracts capacitive reactance information from the impedance data, and calculates the change in the lubricating oil dielectric constant based on the change in capacitance to achieve lubrication control. Test the dielectric constant of oil and record the data to find out the change pattern between lubricating oil quality and dielectric constant.

Schematic PCB

E-sport source code self-learning maze-walking smart car

The self-learning maze walking car can work in two modes.

Schematic PCB

DIY retro game console MicroByte based on ESP32

The MicroByte is a tiny console capable of running games from the NES, GameBoy, GameBoy Color, Game Gear and Sega Master systems, with all components designed into this 78 x 17 x 40 mm package.

Schematic PCB

51 microcontroller control example of RTL8019 Ethernet (original program + schematic diagram)

51 microcontroller to RTL8019 Ethernet control example (original program + schematic diagram).

Schematic PCB