For the expansion of 410 UFI, use SL2.1A as the Hub master control structure. Simple and low cost. Please refer directly to the BOM for PCB silk screen verification.
BOM download
PCB_USB_Hub_0.1_2022-09-22.pdf
PCB_USB_Hub_0.1_2022-09-22.json
USB_Hub_0.1_2022-09-22.pcbdoc
Gerber_USB_Hub_0.1.zip
62047
[Solicitation Order] One-way relay switch
Introduction: A relay switch based on ESP8266, used with the HASS open source smart home platform, and communicates through MQTT.
A relay switch based on ESP8266, used with the HASS open source smart home platform, and communicates through MQTT.
BOM download
PCB_PCB_ESP8266 one-way switch with relay_2022-09-22.pdf
PCB_PCB_ESP8266 one way switch with relay_2022-09-22.json
PCB_ESP8266 one way switch with relay_2022-09-22.pcbdoc
Gerber_PCB_ESP8266 one way switch with relay.zip
Schematic_[Solicitation Order] One-way Relay Switch_2022-09-22.pdf
SCH_[Solicitation Order] One-way relay switch_2022-09-22.json
SCH_ESP8266 one-way switch with relay_2022-09-22.schdoc
62048
【RA】Electronic clock, alarm clock and temperature display based on Renesas microcontroller
Introduction: Use RA microcontroller to control the digital tube through TM1650 to achieve the effect of real-time clock. You can control the buzzer on and off by setting the alarm clock.
Effects achieved: 1. Real-time clock 2. Alarm clock effect with buzzer 3. Running water lamp
Unfinished effect: Unable to set alarm clock through hardware development board, touch button cannot be used (use serial port debugging, touch button function cannot be used)
real time clock.mp4
Serial port debugging data.png
BOM download
PCB_[RA] Renesas-based clock (alarm clock) and temperature display table_2022-09-22.pdf
PCB_[RA] Renesas-based clock (alarm clock) and temperature display table_2022-09-22.json
[RA] Renesas-based clock (alarm clock) and temperature display table_2022-09-22.pcbdoc
Gerber_[RA] Renesas-based clock (alarm clock) and temperature display meter.zip
Schematic_[RA] Electronic clock, alarm clock and temperature display based on Renesas microcontroller_2022-09-22.pdf
SCH_[RA] Electronic clock, alarm clock and temperature display based on Renesas microcontroller_2022-09-22.json
[RA] Renesas-based clock (alarm clock) and temperature display meter_2022-09-22.schdoc
62049
STM32F103RCT6 development board
Introduction: stm32f103rct6 development board
3.3v dcdc power supply ripple: 46mv (1A) [cement resistor] 5.0v power supply total output power is not greater than 2A. All io ports are divided and isolated: power limit 100mw, overcurrent automatic circuit break.
Peripheral expansion: jlink interface, usart interface, all idle The io port is equipped with 128Mb flash expansion, and the 24Mb ROM expansion uses a common mode inductor to process the usart interface. The signal is very clean and stable. The buzzer and LED are just like that. There is nothing good about it. The
schematic diagram and PCB have been open sourced to the Lichuang EDA open source platform. , please correct me if there are any deficiencies.
BOM download
PCB_PCB_STM32F103RCT6 development board_2022-09-22.pdf
PCB_PCB_STM32F103RCT6 development board_2022-09-22.json
Schematic_STM32F103RCT6 development board_2022-09-22.pdf
SCH_STM32F103RCT6 development board_2022-09-22.json
STM32F103RCT6 development board_2022-09-22.zip
PCB_STM32F103RCT6 development board_2022-09-23.pcbdoc
Gerber_PCB_STM32F103RCT6 development board.zip
62050
STM32103ZET6 expansion board LCD12864 platform icedundun
Introduction: STM32F103 ZET6 expansion board based on LCD12864 platform icedundun board
This expansion version is an external expansion version of the STM32F103ZET6 small system board. It includes 4*4 matrix buttons, 2 LEDs, which are high-level drivers. The display is an LCD12864 (5V drive) display. The version in the picture is V1. 0, now updated to version V2.1, which adds a reset function, layout adjustment, and additional functions. Bingdundun, the left eye is a 5V power indicator light, and the right eye is a 3V3 power indicator light. If the left eye is off, it means the computer USB is burned out. , if the right eye goes out, it means the development board is burned out.
6.png
7.jpg
8.jpg
9.jpg
BOM download
PCB_Ice Pier Board_2022-09-22.pdf
PCB_ice pier board_2022-09-22.json
Ice pier board_2022-09-22.pcbdoc
Gerber_ice pier board.zip
Schematic_STM32103ZET6 expansion board LCD12864 platform icedundun_2022-09-22.pdf
SCH_STM32103ZET6 expansion board LCD12864 platform icedundun_2022-09-22.json
Partial schematic_2022-09-22.schdoc
62051
electronic
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