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KC868-Uair ESP32 I/O pin define
#1
   

433M receiver:GPIO13
433M sender:GPIO2

IR receiver  GPIO19
IR sender GPIO22

i2c:
  sda: GPIO4
  scl: GPIO16

DS18B20 temperature sensor (internal) :GPIO27

Buzzer:GPIO26

WS2812B 4pcs bottom RGBW LEDs:GPIO32
WS2812B 1pc vertical bar RGBW LED:GPIO33

free GPIO for DIY extend on PCB:

GPIO15,GPIO5,GPIO21,GPIO25,GPIO36,GPIO34
GPIO17,GPIO18,GPIO23,GPIO14,GPIO39,GPIO35

extend port details: 

.pdf   KC886-Uair-extend-GPIO.pdf (Size: 1.66 MB / Downloads: 446)
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