MP1593DN step-down module

MP1593 Datasheet.pdf

PDF_MP1593DN step-down module.zip

Altium_MP1593DN step-down module.zip

PADS_MP1593DN step-down module.zip

BOM_MP1593DN step-down module.xlsx

95785

DRV8313 low-power FOC driver board

Low-power FOC driver board based on DRV8313

For those interested in learning FOC, you can check out the repository at https://gitee.com/HappyAncia. It contains FOC code I wrote based on this driver board and a found STM32F103C8T6 minimum system board. Feel free to learn together!

Closed-loop position FOC.mp4

Closed-loop current FOC.mp4

PDF_DRV8313 Low-Power FOC Driver Board.zip

Altium_DRV8313 low-power FOC driver board.zip

PADS_DRV8313 low-power FOC driver board.zip

BOM_DRV8313 Low Power FOC Driver Board.xlsx

95786

Electronic Butterfly

Based on the principle of free access, an improved "breathing" electronic butterfly has been created, capable of blinking without any code. Original author: [Xiao Jun Chou], LCSC Open Source Platform.

I.
The overall schematic diagram of the LED blinking device is as follows:
 
 
Working principle: The operational amplifier U1 continuously charges and discharges capacitor C1, resulting in a triangular wave (red waveform) as shown in the diagram. This triangular wave is then used to control the switching on and off of the transistor, thus achieving LED blinking.
The blinking speed is determined by the capacitor's charging and discharging cycle, which is three times the time constant (it is generally believed that the capacitor is fully charged or discharged after three times the time constant).
Therefore, adjusting the LED blinking speed only requires changing the values ​​of R13 and C1. Try it out yourself!
 
PS: The PWM logo on U1 is just a random name I made up; the actual waveform is also a triangular wave, but I added a voltage follower stage to increase the load-driving capability of the triangular wave. For
 
 
PCB soldering, refer to the original author's instructions; I'm too lazy to write it out. II. The schematic diagram of
 
the PCB support bracket is as follows: Working principle:     H1 is a 5V external power socket (why leave a socket? Because freebies make me happy);     an additional Type-C interface is reserved, but only the 5V power supply pin is connected.     Either power interface can be selected, or both can be plugged in simultaneously. There is a diode for reverse polarity protection, so don't worry. PCB Soldering Instructions: III. Material Preparation: 1. All electronic components, sourced from [company name] for free; 2. PCB, sourced from JLCPCB for free; 3. Soldering tools, sourced from [company name] for free; although I also have some in stock, getting things for free makes me happy (doge emoji for protection). IV. See attached project files for physical demonstration . Video on Bilibili: https://www.bilibili.com/video/BV1he41127hb/?vd_source=bc354c22d786c4e0b934a0e443fd6509

 




 

 
 





 



 

Breathing Electronic Butterfly [Project File].epro

PDF_Electronic Butterfly.zip

Altium_ElectronicButterfly.zip

PADS_Electronic Butterfly.zip

BOM_Electronic Butterfly.xlsx

95787

Intelligent LED Strip System - Aurora

The ESP32-based smart light strip system, based on Blinker, supports: Xiao Ai voice assistant, flowing light effects, weather and time display, sedentary reminder, and computer shutdown.

This smart light strip system, based on ESP32 and Blinker, supports: Xiao Ai voice assistant, flowing light effects, weather and time display, sedentary reminder, and computer
shutdown. The project is open-source at https://github.com/bszydxh/smart_light_system
and includes an Android and PC client.
This board is only a data board and cannot be used to directly drive the light strip.
Video 1 demonstrates the flowing light effects;
Video 2 demonstrates computer-controlled light strip operation.

208168212-7c93ab88-0b14-446b-8acc-c92a9ee06c3b.mp4

208168375-cefdf474-2f2c-4264-8bb8-2c2823d160cd.mp4

PDF_Intelligent LED Strip System - aurora.zip

Altium Smart LED Strip System - aurora.zip

PADS Smart LED Strip System - aurora.zip

BOM_Intelligent LED Strip System-aurora.xlsx

95788

electronic