Integration that adds missing GPIOs (input, output, ADC) to your NUC or Proxmox-based installation over USB.
# Example configuration.yaml entry
mcp2221:
- switches:
- name: "Output 0"
pin: 0
unique_id: out0
- name: "Output 1"
pin: 1
unique_id: out1
binary_sensors:
- name: "Input 2"
pin: 2
unique_id: in2
device_class: door
- name: "Input 3"
pin: 3
unique_id: in3
icon: mdi:electric-switch
# adc:
# ref: 4.096
# sensors:
# - name: "voltage"
# pin: 3
# unique_id: adc3Install via HACS
You can find this integration in the community store.
You need to copy the mcp2221 folder from this repo to the custom_components folder in the root of your configuration. The file tree should look like this:
└── ...
└── configuration.yaml
└── custom_components
└── mcp2221
└── __init__.py
└── sensor.py
└── ...
Note: if the
custom_componentsdirectory does not exist, you need to create it.
1️⃣Switch (output) & multiple devices
You can also specift multiple device, just adjust the index (`dev`) or even specify different PID/VIDmcp2221:
- dev: 0
pid: 0x00DD
vid: 0x04D8
switches:
- name: "Output 0"
pin: 0
unique_id: output_0_0
icon: mdi:toggle-switch
- dev: 1
switches:
- name: "Output 0"
pin: 0
unique_id: output_1_0
icon: mdi:toggle-switch2️⃣Binary sensor (input)
❗Don't leave pin floatingmcp2221:
binary_sensors:
- name: "Input 1"
pin: 1
inverted: True
unique_id: input_0
icon: mdi:toggle-switch
scan_interval: 10
device_class: door3️⃣Sensor (ADC)
Only pins GP1-GP3, result is 10-bit (0-1023)You can also adjust the result, example here is when power supply is 3.3V
mcp2221:
adc:
ref: "VDD" # or 1.024, 2.048, 4.096
sensors:
- name: "Battery voltage"
pin: 3
unique_id: battery_voltage
scan_interval: 50
icon: mdi:car-battery
device_class: voltage
unit_of_measurement: V
value_template: "{{ value * 3.3 / 1023}}"