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+--- Thread: KC868-AIO ESP32 I/O pin define (/showthread.php?tid=2735)
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KC868-AIO ESP32 I/O pin define - admin - 03-24-2023
ESP32 ANALOG_A1 GPIO36 For (Analog Multiplexer: cd74hc4067) to extend "analog input" 1-16
ESP32 ANALOG_A2 GPIO39 analog input 17
ESP32 ANALOG_A3 GPIO34 analog input 18
ESP32 ANALOG_A4 GPIO35 analog input 19
IIC Bus:A
SDA-A:GPIO4
SCL-A:GPIO16
PCF8575:U40 (output 1-16): 100 100 = 0x24
PCF8575:U41 (output 17-32): 100 101 = 0x25
PCF8575:U42 (output 33-38): 100 110 = 0x26
cd74hc4067
S0-A: PCF8575->U42->P10 (output 33)
S1-B: PCF8575->U42->P11 (output 34)
S2-C: PCF8575->U42->P12 (output 35)
S3-D: PCF8575->U42->P13 (output 36)
free LEDs:
LED-D7: PCF8575->U42->P14 (output 37)
LED-D8: PCF8575->U42->P15 (output 38)
-----------------------------------------------------------------------------------
PCF8575:U35 (input 1-16): 100 001 = 0x21
PCF8575:U37 (input 17-32): 100 010 = 0x22
PCF8575:U38 (input 33-48): 100 011 = 0x23
PCF8575:U42 (input 49-58): 100 110 = 0x26
PCF8575->U42->P0 (input 49)
PCF8575->U42->P1 (input 50)
PCF8575->U42->P2 (input 51)
PCF8575->U42->P3 (input 52)
PCF8575->U42->P4 (input 53)
PCF8575->U42->P5 (input 54)
PCF8575->U42->P6 (input 55)
PCF8575->U42->P7 (input 56)
PCF8575->U42->P14 (input 57)
PCF8575->U42->P15 (input 58)
-----------------------------------------------------------------------------------------
PCA9685: address 0x00
-----------------------------------------------------------------------------------------
Button-S1: reset
Button-S2: GPIO0
Button-S3: PCF8575->U42->P14 (input 57)
Button-S4: PCF8575->U42->P15 (input 58)
-------------------------------------------------------------------------------------------
DS18B20/DHT11/DHT21/LED strip -(TP1): GPIO14
DS18B20/DHT11/DHT21/LED strip -(TP2): GPIO5
-------------------------------------------------------------------------------------------
Ethernet (LAN8720) I/O define:
#define ETH_ADDR 0
#define ETH_POWER_PIN -1
#define ETH_MDC_PIN 23
#define ETH_MDIO_PIN 18
#define ETH_TYPE ETH_PHY_LAN8720
#define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT
-------------------------------------------------------------------------------------------
RS485:
RXD(A): GPIO32
TXD(B): GPIO33
------------------------------------------------------------------------------------------
4G GSM Module / Extend serial port:
RXD: GPIO13
TXD: GPIO15
---------------------------------------------------------------------------------------------
DS3231 RTC module: IIC address 0x68
EEPROM's default I2C address is 0x57
RE: KC868-AIO ESP32 I/O pin define - xarouli5 - 03-28-2025
Can gpio05 and gpio14 work at the same time?
I tried on one_wire to define both but accepts one OR the other.
I want dht11 on one pin and DS18b20 on the other.
RE: KC868-AIO ESP32 I/O pin define - admin - 03-29-2025
Do you use KCS firmware or ESPHome?
RE: KC868-AIO ESP32 I/O pin define - xarouli5 - 03-29-2025
Esp home.
We need two sensors:
(DS18b20) on Tp1 and dht on tp2.
Can both be used at the same time?
How many on each channel using both channels?
RE: KC868-AIO ESP32 I/O pin define - admin - 03-29-2025
sure, you can use two gpio at the same time.
if you using ESPHome, also support one gpio with multi DS18B20 sensors.
RE: KC868-AIO ESP32 I/O pin define - xarouli5 - 03-29-2025
One gpio with many DS18b20
Also the other gpio with many Dht11?
RE: KC868-AIO ESP32 I/O pin define - admin - 03-29-2025
yes, that according to ESPHome, one gpio can work with multi ds18b20 sensors. But one gpio ONLY work with one DHT11 sensor.
RE: KC868-AIO ESP32 I/O pin define - xarouli5 - 04-14-2025
I have a DS18b20 on GPIO14 and working. Trying to use a Dht11 on GPIO05.
The code I use (try) is:
#
one_wire:
- platform: gpio
pin: GPIO14
id: one_wire1
- platform: gpio
pin: GPIO05
id: one_wire2
Sensor
- platform: dallas_temp
name: #AIO DS18B20 #1"
update_interval: 10s
one_wire_id: one_wire1
- platform: dht
model: DHT11
one_wire_id: one_wire2
temperature:
name: "Temperature2"
humidity:
name: "Humidity2"
update_interval: 10s
#
The error I get is:
INFO ESPHome 2024.12.4
INFO Reading configuration /config/esphome/aio.yaml...
WARNING GPIO5 is a strapping PIN and should only be used for I/O with care.
Attaching external pullup/down resistors to strapping pins can cause unexpected failures.
See https://esphome.io/guides/faq.html#why-am-i-getting-a-warning-about-strapping-pins
Failed config
sensor.dht: [source /config/esphome/aio.yaml:429]
'pin' is a required option for [sensor.dht].
platform: dht
model: DHT11
[one_wire_id] is an invalid option for [sensor.dht]. Please check the indentation.
one_wire_id: one_wire2
temperature:
name: Temperature2
humidity:
name: Humidity2
update_interval: 10s
What am I doing wrong? I am using 3.3v for Dht11. Tried 2 different sensors, both same error.
https://a.aliexpress.com/_EIdTg JK
https://a.aliexpress.com/_EQCKU9Q
(04-14-2025, 07:39 PM)xarouli5 Wrote: I have a DS18b20 on GPIO14 and working. Trying to use a Dht11 on GPIO05.
The code I use (try) is:
Code:one_wire:
- platform: gpio
pin: GPIO14
id: one_wire1
- platform: gpio
pin: GPIO05
id: one_wire2
Sensor:
- platform: dht
model: DHT11
one_wire_id: one_wire2
temperature:
name: "Temperature2"
humidity:
name: "Humidity2"
update_interval: 10s
The error I get is:
INFO ESPHome 2024.12.4
INFO Reading configuration /config/esphome/aio.yaml...
WARNING GPIO5 is a strapping PIN and should only be used for I/O with care.
Attaching external pullup/down resistors to strapping pins can cause unexpected failures.
See https://esphome.io/guides/faq.html#why-am-i-getting-a-warning-about-strapping-pins
Failed config
sensor.dht: [source /config/esphome/aio.yaml:429]
'pin' is a required option for [sensor.dht].
platform: dht
model: DHT11
[one_wire_id] is an invalid option for [sensor.dht]. Please check the indentation.
one_wire_id: one_wire2
temperature:
name: Temperature2
humidity:
name: Humidity2
update_interval: 10s
What am I doing wrong? I am using 3.3v for Dht11. Tried 2 different sensors, both same error.
https://a.aliexpress.com/_EIdTg JK
https://a.aliexpress.com/_EQCKU9Q
RE: KC868-AIO ESP32 I/O pin define - admin - 04-14-2025
you can update your esphome to 2025.3
now the one wire sensor yaml format have changed, you can check with esphome webpage.
RE: KC868-AIO ESP32 I/O pin define - xarouli5 - 04-15-2025
For any other looking the same:
The problem was not the version of ESPHome, though I updated had the same error as before.
The code working:
#
one_wire:
- platform: gpio
pin: GPIO14
id: one_wire1
- platform: gpio
pin: GPIO05
id: one_wire2
#no need to define one_wire2 for a reason I don't understand but it works like this. #
Sensor
- platform: dallas_temp
name: #AIO DS18B20 #1"
update_interval: 10s
one_wire_id: one_wire1
- platform: dht
pin: GPIO05
temperature:
name: "Temperature DHT11"
humidity:
name: "Humidity DHT11"
update_interval: 60s
#