KC868-ASR ESP32 I/O pin define

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Button S2: GPIO0


TH1: GPIO32  (use for DS18B20/DHT11 sensor)
TH2: GPIO33  (use for DS18B20/DHT11 sensor)

Relay1:GPIO19
Relay2:GPIO5

IIC SDA:GPIO26
IIC SCL:GPIO27

LED1:GPIO23
LED2:GPIO22

Beep: GPIO18

DS3231 IIC address: 0x68

TF_Card:

DAT2:GPIO12
DAT3: GPIO13
CMD: GPIO15
CLK: GPIO14
DAT0:GPIO2
DAT1:GPIO4

free GPIO: GPIO16, GPIO17