Story
PCB HEART:
TOP:
CH32V003, 5*WS2812B-2020,LTC4054ES5-4.2#PBF
R1=0-330R
R2= Resistance size according to the color of the LED
Jumper S1:
LED Power:
R5=NC
Bottom:
LIR2032 battery or other Lion /CR2032
-NO usb data -USB power,charging and programing(SWIO use D- )
FOR LTC4054ES5 :
-DON'T USE NON-RECHARGEABLE BATTERIES LIKE CR2032 !!!
- OR DO NOT CONNECT USB IF USING NON-RECHARGEABLE BATTERIES (CR2032 ...)!!!
-OR REMOVE BATTERIES BEFORE CONNECTING THE USB!!!
USB: