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KC868-A6 ESP32 I/O pin define
#1
#define ANALOG_A1  36
#define ANALOG_A2  39
#define ANALOG_A3  34
#define ANALOG_A4  35

DS18B20/DHT11/DHT21/LED strip -1: 32
DS18B20/DHT11/DHT21/LED strip -2: 33

DAC1:26
DAC2:25

IIC SDA:4
IIC SCL:15

Input_IIC_address 0x22

Relay_IIC_address 0x24

RS485 RXD: 14
RS485 TXD: 27

SPI_Bus: (For LoRA/nRF24L01)
CS: 5
MOSI: 23
MISO: 19
SCK: 18

LoRA sx1278:
RST:21
DIO0:2

nRF24L01:
CE: 22

RS485:
TXD:27
RXD:14

RS232:
TXD:17
RXD:16

Extend serial port on PCB:
TXD(define by yourself):12
RXD (define by yourself) :13
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#2
(06-01-2022, 07:23 AM)admin Wrote: #define ANALOG_A1  36
#define ANALOG_A2  39
#define ANALOG_A3  34
#define ANALOG_A4  35

DS18B20/DHT11/DHT21/LED strip -1: 32
DS18B20/DHT11/DHT21/LED strip -2: 33

DAC1:26
DAC2:25

IIC SDA:4
IIC SCL:15

Input_IIC_address 0x22

Relay_IIC_address 0x24

RS485 RXD: 14
RS485 TXD: 27

SPI_Bus: (For LoRA/nRF24L01)
CS: 5
MOSI: 23
MISO: 19
SCK: 18

LoRA sx1278:
RST:14
DIO0:21

nRF24L01:
CE: 22

RS485:
TXD:27
RXD:14

RS232:
TXD:17
RXD:16
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#3
I would like to use IO-1/IO-2 (originally intended for sensors ect. DS1820) as pure GIPO. Huh
I understand that I have to remove two resistors from the print.
I need to use the board to communicate with the furnace via OpenTherm. What pins should I use for input/output?
Design https://ihormelnyk.com/opentherm_adapter
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#4
IO1 and IO2 in KC868-A6 can use for DS18B20 directly.
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