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esphome/esphome/components/nfc/binary_sensor/__init__.py
2025-02-19 13:24:43 -06:00

73 lines
2.1 KiB
Python

import esphome.codegen as cg
from esphome.components import binary_sensor
import esphome.config_validation as cv
from esphome.const import CONF_UID
from esphome.core import HexInt
from .. import Nfcc, NfcTagListener, nfc_ns
DEPENDENCIES = ["nfc"]
CONF_NDEF_CONTAINS = "ndef_contains"
CONF_NFCC_ID = "nfcc_id"
CONF_TAG_ID = "tag_id"
NfcTagBinarySensor = nfc_ns.class_(
"NfcTagBinarySensor",
binary_sensor.BinarySensor,
cg.Component,
NfcTagListener,
cg.Parented.template(Nfcc),
)
def validate_uid(value):
value = cv.string_strict(value)
for x in value.split("-"):
if len(x) != 2:
raise cv.Invalid(
"Each part (separated by '-') of the UID must be two characters long."
)
try:
x = int(x, 16)
except ValueError as err:
raise cv.Invalid(
"Valid characters for parts of a UID are 0123456789ABCDEF."
) from err
if x < 0 or x > 255:
raise cv.Invalid(
"Valid values for UID parts (separated by '-') are 00 to FF"
)
return value
CONFIG_SCHEMA = cv.All(
binary_sensor.binary_sensor_schema(NfcTagBinarySensor)
.extend(
{
cv.GenerateID(CONF_NFCC_ID): cv.use_id(Nfcc),
cv.Optional(CONF_NDEF_CONTAINS): cv.string,
cv.Optional(CONF_TAG_ID): cv.string,
cv.Optional(CONF_UID): validate_uid,
}
)
.extend(cv.COMPONENT_SCHEMA),
cv.has_exactly_one_key(CONF_NDEF_CONTAINS, CONF_TAG_ID, CONF_UID),
)
async def to_code(config):
var = await binary_sensor.new_binary_sensor(config)
await cg.register_component(var, config)
await cg.register_parented(var, config[CONF_NFCC_ID])
hub = await cg.get_variable(config[CONF_NFCC_ID])
cg.add(hub.register_listener(var))
if CONF_NDEF_CONTAINS in config:
cg.add(var.set_ndef_match_string(config[CONF_NDEF_CONTAINS]))
if CONF_TAG_ID in config:
cg.add(var.set_tag_name(config[CONF_TAG_ID]))
elif CONF_UID in config:
addr = [HexInt(int(x, 16)) for x in config[CONF_UID].split("-")]
cg.add(var.set_uid(addr))