LED dimmer

Briefly describe

50kHz high-frequency dimming, which is gentle on the eyes.
Supports all LEDs within the specified range.
Use a CH224K decoy; note the charger's maximum output voltage, which must not be less than the LED voltage.
Use the resistors in the schematic; the maximum output is 303mA. For other currents, modify the R5 resistor value. (0.303A = 0.1V ÷ 0.330Ω)
Except for the CH224K, other components can withstand a maximum voltage of 30V.
Use 8mm high, 2mm bore studs.
0630 and 0650 inductors are both acceptable.

 
Button operation:

"Up" - Long press: Slowly brightens, double press: Maximum brightness
; "Down" - Long press: Slowly dims, double press: Minimum brightness
; "Medium" - Single click: On/Off.
Automatically starts at 50% brightness upon power-on.

 
Software update

2024/02/06 - V1.0: First version completed

 
. Physical images
 
are available.

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