STM32F103C8t6 Minimum Development Board

PDF_STM32F103C8t6 Minimum Development Board.zip

Altium_STM32F103C8t6 Minimum Development Board.zip

PADS_STM32F103C8t6 Minimum Development Board.zip

BOM_STM32F103C8t6 Minimum Development Board.xlsx

95093

LCD1602 Large Electronic Clock

An electronic clock based on a 51 microcontroller, with a size only the size of an LCD1602.

System Design


Product Introduction:

This is an electronic clock designed based on a 51 microcontroller. It's only the size of an LCD1602 screen. The time adjustment button has a buzzer sound, and an alarm clock mode is included. An 18B20 temperature sensor is added, allowing you to clearly see the ambient temperature. However, the time is not saved after a power outage. I would appreciate guidance on the cause of this problem.
2. Function Description:
Button 1 selects between time adjustment and alarm clock modes. An "N" will appear in the lower right corner of the screen to activate alarm clock mode. In normal time display mode, pressing button 3 will display a "K" in the lower right corner of the screen to activate the alarm. If the alarm is not activated, it will not sound.
Button 2 selects the digit to be modified.
Button 3 increases the value, and button 4 decreases it.
(This is a beginner's code, so it may not be perfect yet. Please provide feedback.)

clock-.rar

WeChat_20240115210118.mp4

PDF_LCD1602 Large Electronic Clock.zip

Altium_LCD1602 large electronic clock.zip

PADS_LCD1602 Large Electronic Clock.zip

BOM_LCD1602 Large Electronic Clock.xlsx

95094

STM32 Electronic Scale

Electronic scale based on STM32C8T6

This system uses an STM32F103C8T6 microcontroller as the main control board and a pressure sensor to collect data. A dedicated 24-bit AD converter chip, HX711, converts the analog signals collected by the sensor into digital signals. The converted data is then sent to the microcontroller for processing and display. The data display is achieved via a 0.96-inch OLED screen. It features a user-friendly UI and implements weighing and pricing functions. Code can be found at Chen-Z/STM32 Electronic Scale - Gitee - Open Source China (gitee.com).

mmexport1684391532643.mp4

PDF_STM32_Electronic Scale.zip

Altium_STM32_electronic scale.zip

PADS_STM32_Electronic Scale.zip

BOM_STM32_Electronic Scale.xlsx

95096

8812EU network card welding base plate

Blink 8812eu network card welding base plate

This is the soldering base plate for the Blink 8812eu network card. The original network card had a separate connector for soldering wires, so this base plate was designed instead. It measures 38*38mm and can be directly screwed onto modules such as the MC800S for use in open-source high-definition video transmission projects like OpenIPC. The central slot is recommended for installing a 20*20mm heatsink and fan, as this network card generates a lot of heat.

PDF_8812EU Network Card Soldering Base Plate.zip

Altium_8812EU network card soldering base plate.zip

PADS_8812EU network card soldering base plate.zip

BOM_8812EU Network Card Soldering Base Plate.xlsx

95097

electronic