Old Wang ST7796 320*360 IPS screen adapter board

PDF_Old Wang ST7796 320_360 IPS Screen Adapter Board.zip

Altium_老王ST7796 320_360 IPS screen adapter board.zip

PADS_Old Wang ST7796 320_360 IPS Screen Adapter Board.zip

BOM_老王ST7796 320_360 IPS Screen Adapter Board.xlsx

96201

Snowflake lamp

Circuit for controlling LED blinking using a 6021WS touch chip

Touch-activated snowflake light achieved through a 6021WS touch chip and solid copper touch pads.

ea5ef4b6974ca38035e0e2508ef55c78.mp4

PDF_SnowflakeLantern.zip

Altium_snowflake.zip

PADS_SnowflakeLamp.zip

BOM_SnowflakeLamp.xlsx

96202

2-3 series battery charging IP2320 2325_V0.1

USB 5V input, synchronous boost, charging 3-cell batteries, battery terminal current approximately 1A, charging power approximately 14W.

Function Description:
USB 5V input, synchronous boost, charges 3-cell batteries, battery terminal current approximately 1A, charging power approximately 14W.
 




Input voltage


4.5~5.5V. 20V Max. 4.5V triggers undervoltage protection, automatically reducing charging power.




Output voltage


3*(4.2/4.15/4.1/4.05V±0.05V) (other specifications can be customized) .




Trickle charging


threshold 3*(3.0V±0.05V), trickle current 100mA±50mA,




full charge cutoff


200mA±100mA. (When the chip output reaches 12.6V but the battery voltage does not, the charging process switches from constant current to constant voltage. The higher the internal resistance of the battery cell and wires, the longer the constant voltage charging time.)




The LED


output is high during charging and low when fully charged; it will flash in case of an abnormality.




NTC


does not support




chip over-temperature


protection; it has built-in over-temperature protection up to 135℃.




 




USB voltage,


USB current, battery voltage ,


battery current , charging power, charging efficiency: 4.80V 2.31A , 9.97V 1.04A , 11.09W , 93.51%; 4.75V 2.96A , 12.39V 1.03A, 14.06W , 90.77%. Charging temperature . Schematic diagram , PCB layout, PCB 3D preview, PCB physical image.





















































 

 

 

 

 

  

Demo-2325_V0.1_Gerber_240107.zip

Demo-IP2320 2325_V0.1_240107.pdf

Demo-IP2325_V0.1_BOM_240107.html

IP2325-3S Charging Curve.xlsx

IP2325 datasheet v1.15.pdf

IP2320 datasheet v1.00.pdf

IP2325_3S datasheet v1.15.pdf

PDF_2-3 Series Battery Charging IP2320 2325_V0.1.zip

Altium_2-3 Series Battery Charging IP2320 2325_V0.1.zip

PADS_2-3 Series Battery Charging IP2320 2325_V0.1.zip

96203

51 Development Board V1.3

Using the CH340N to serial port chip, one-click programming is supported.

The board's shape is based on WCH's development board, which I thought looked cool, so I designed my own 51 microcontroller. The main control chip is an LQFP-packaged STC89C52RC. So far, I haven't encountered any problems. If you encounter any strange bugs while using it, please leave a comment. My drawing isn't very good, so please point out any shortcomings and I'll fix them QAQ.
 
 
Oh, and the fuses on the board don't need to be soldered; you can just connect them with a lump of solder, which saves time QAQ.