Hi guys,
I’m new in YAML. I want to use two Grow Fingerprint sensors on my ESP32.
Please, how can I declare two? If I try to do it like a list, it shows Error by the “on_finger_scan…”.
Thank you for every help/comment.
The id has to be unique for each instance. You can’t reuse id names.
You mean the row 21 - id: fingerprint_in and row 25 - id: fingerprint_out?
These are not same.
I see, you have the 2 id’s on the same sensing pin. Did you try different sensing pins for each reader?
Yes, I tried with GPIO32 now. But the error not about the sensing pin.
I’m new by YAML and I don’t know how to make two instance of the component.
Can I just make it as list with character ’ - ’ before the id?
It depends on how the integration was written. It may very well only support a single reader. You could file a feature request/bug report on github.
Ok, I made a request to update. fingerprint_grow multiple instances · Issue #1522 · esphome/feature-requests · GitHub
If somebody knows how to make two instances of the “fingerprint_grow” conponent, please let me know 
Hi,
I tried to create two instances of the object without the events and it looks is working.
Just if I add the events, it says: fault. Looks like a bug in the component, or my fault by using YAML?
esphome:
name: test_loader
platform: ESP32
board: esp32dev
uart:
- id: uart_in
tx_pin: GPIO17
rx_pin: GPIO16
baud_rate: 57600
- id: uart_out
tx_pin: GPIO23
rx_pin: GPIO22
baud_rate: 57600
fingerprint_grow:
- id: fingerprint_in
uart_id: uart_in
sensing_pin: GPIO32
- id: fingerprint_out
uart_id: uart_out
sensing_pin: GPIO12
Thank for help and some Idea
Oh I see what I think is the problem, all your automations were under the same entry. All actions for uart_in are under uart_out. Separate them to their respective entries.
Hi Mike,
I’m not understanding, what you mean with “Separate them to their respective entries.”
Can you write some example?
Thank you very much.
fingerprint_grow:
### this is the entry
id: finger_in
sensing_pin: GPIO12 ##use different pins for each sensor
uart_id: uart_finger_in
###end of entry
###start of automations
on_finger_scan_matched:
- text_sensor.template.publish:
id: fingerprint_state
state: "Authorized finger"
- switch.turn_on: gate
- delay: 500ms
- switch.turn_off: gate
on_finger_scan_unmatched:
- text_sensor.template.publish:
id: fingerprint_state
state: "Unauthorized finger"
### end of automations
### start second entry
id: finger_out
sensing_pin: ##use different pins for each sensor
uart_id: uart_finger_out
###end of entry
###start of automations for second entry
on_finger_scan_matched:
- text_sensor.template.publish:
id: fingerprint_state
state: "Authorized finger"
- switch.turn_on: gate
- delay: 500ms
- switch.turn_off: gate
on_finger_scan_unmatched:
- text_sensor.template.publish:
id: fingerprint_state
state: "Unauthorized finger"
Ok, it’s not working on first, but after small correction looks good. (valid by ESPHome)
fingerprint_grow:
- id: fingerprint_in
uart_id: uart_in
sensing_pin: GPIO32
on_finger_scan_matched:
- switch.turn_on: relay_unlock
- fingerprint_grow.aura_led_control:
id: fingerprint_in
state: BREATHING
speed: 200
color: BLUE
count: 1
- text_sensor.template.publish:
id: fingerprint_out_state
state: "Authorized finger"
- switch.turn_on: relay_unlock
- delay: 500ms
- switch.turn_off: relay_unlock
- id: fingerprint_out
uart_id: uart_out
sensing_pin: GPIO12
on_finger_scan_matched:
- switch.turn_on: relay_unlock
- fingerprint_grow.aura_led_control:
id: fingerprint_out
state: BREATHING
speed: 200
color: BLUE
count: 1
- text_sensor.template.publish:
id: fingerprint_out_state
state: "Authorized finger"
- delay: 500ms
- switch.turn_off: relay_unlock
I thank you. You are great man.
3 Likes
Hello everyone
Thanks for the mentioned code. It helped me but I’ve got a little bit a different and longer yaml-code. When I tried to install this configuration. I’ve got the following warning:
Too many candidates found for 'fingerprint_grow_id' type 'fingerprint_grow::FingerprintGrowComponent' Some are 'fingerprint_garage', 'fingerprint_tuer'.
In the editor, I can see that this error occurs by the binary sensor, sensor and the services in the api. Could anyone with yaml-experience help me out to separate them as well?
esphome:
name: fingersensor
friendly_name: Fingersensor
esp32:
board: esp32-c3-devkitm-1
framework:
type: esp-idf
# Enable logging
logger:
ota:
- platform: esphome
password: "secret"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Fingersensor Fallback Hotspot"
password: "secret"
captive_portal:
uart:
- id: uart_garage
rx_pin: GPIO02
tx_pin: GPIO03
baud_rate: 57600
- id: uart_tuer
rx_pin: GPIO04
tx_pin: GPIO05
baud_rate: 57600
fingerprint_grow:
- id: fingerprint_garage
uart_id: uart_garage
sensing_pin: GPIO01
sensor_power_pin:
number: GPIO00
inverted: true
idle_period_to_sleep: 5s
on_finger_scan_matched:
- homeassistant.event:
event: esphome.test_node_finger_scan_matched
data:
finger_id: !lambda 'return finger_id;'
confidence: !lambda 'return confidence;'
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: BREATHING
speed: 200
color: GREEN
count: 1
- text_sensor.template.publish:
id: fingerprint_state_garage
state: "Autorisiert"
on_finger_scan_unmatched:
- homeassistant.event:
event: esphome.test_node_finger_scan_unmatched
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: FLASHING
speed: 25
color: RED
count: 2
- text_sensor.template.publish:
id: fingerprint_state_garage
state: "Unautorisiert"
on_enrollment_scan:
- homeassistant.event:
event: esphome.test_node_enrollment_scan
data:
finger_id: !lambda 'return finger_id;'
scan_num: !lambda 'return scan_num;'
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: FLASHING
speed: 25
color: BLUE
count: 2
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: ALWAYS_ON
speed: 0
color: PURPLE
count: 0
- text_sensor.template.publish:
id: fingerprint_state_garage
state: "Anlernen"
on_enrollment_done:
- homeassistant.event:
event: esphome.test_node_enrollment_done
data:
finger_id: !lambda 'return finger_id;'
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: BREATHING
speed: 100
color: BLUE
count: 2
- text_sensor.template.publish:
id: fingerprint_state_garage
state: "Registrieren"
on_enrollment_failed:
- homeassistant.event:
event: esphome.test_node_enrollment_failed
data:
finger_id: !lambda 'return finger_id;'
- fingerprint_grow.aura_led_control:
id: fingerprint_garage
state: FLASHING
speed: 25
color: RED
count: 4
- text_sensor.template.publish:
id: fingerprint_state_garage
state: "Fehler"
# Zweiter Sensor
- id: fingerprint_tuer
uart_id: uart_tuer
sensing_pin: GPIO06
sensor_power_pin:
number: GPIO00
inverted: true
idle_period_to_sleep: 5s
on_finger_scan_matched:
- homeassistant.event:
event: esphome.test_node_finger_scan_matched
data:
finger_id: !lambda 'return finger_id;'
confidence: !lambda 'return confidence;'
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: BREATHING
speed: 200
color: GREEN
count: 1
- text_sensor.template.publish:
id: fingerprint_state_tuer
state: "Autorisiert"
on_finger_scan_unmatched:
- homeassistant.event:
event: esphome.test_node_finger_scan_unmatched
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: FLASHING
speed: 25
color: RED
count: 2
- text_sensor.template.publish:
id: fingerprint_state_tuer
state: "Unautorisiert"
on_enrollment_scan:
- homeassistant.event:
event: esphome.test_node_enrollment_scan
data:
finger_id: !lambda 'return finger_id;'
scan_num: !lambda 'return scan_num;'
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: FLASHING
speed: 25
color: BLUE
count: 2
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: ALWAYS_ON
speed: 0
color: PURPLE
count: 0
- text_sensor.template.publish:
id: fingerprint_state_tuer
state: "Anlernen"
on_enrollment_done:
- homeassistant.event:
event: esphome.test_node_enrollment_done
data:
finger_id: !lambda 'return finger_id;'
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: BREATHING
speed: 100
color: BLUE
count: 2
- text_sensor.template.publish:
id: fingerprint_state_tuer
state: "Registrieren"
on_enrollment_failed:
- homeassistant.event:
event: esphome.test_node_enrollment_failed
data:
finger_id: !lambda 'return finger_id;'
- fingerprint_grow.aura_led_control:
id: fingerprint_tuer
state: FLASHING
speed: 25
color: RED
count: 4
- text_sensor.template.publish:
id: fingerprint_state_tuer
state: "Fehler"
# Optional template text sensor for visual feedback
text_sensor:
- platform: template
id: fingerprint_state_garage
name: "Fingerprint State Garage"
lambda: |-
return {"-"};
update_interval: 6s
- platform: template
id: fingerprint_state_tuer
name: "Fingerprint State Tür"
lambda: |-
return {"-"};
update_interval: 6s
# Optional sensors
binary_sensor:
- platform: fingerprint_grow
id: fingerprint_enrolling
name: "Fingerprint Enrolling"
sensor:
- platform: fingerprint_grow
fingerprint_count:
name: "Abdruck Zähler"
last_finger_id:
name: "Letzte Abdruck ID"
last_confidence:
name: "Letzte Autorisation"
status:
name: "Abdruck Status"
capacity:
name: "Abdruck Menge"
security_level:
name: "Abdruck Sicherheitslevel"
api:
encryption:
key: "secret
services:
- service: enroll
variables:
finger_id: int
num_scans: int
then:
- fingerprint_grow.enroll:
finger_id: !lambda 'return finger_id;'
num_scans: !lambda 'return num_scans;'
- fingerprint_grow.aura_led_control:
state: ALWAYS_ON
speed: 0
color: PURPLE
count: 0
- service: cancel_enroll
then:
- fingerprint_grow.cancel_enroll:
- service: delete
variables:
finger_id: int
then:
- fingerprint_grow.delete:
finger_id: !lambda 'return finger_id;'
- service: delete_all
then:
- fingerprint_grow.delete_all:
Short update.
I couldn’t figure out a solution with one ESP-Board. My shortcut was to buy a second one and have now to each sensor a separate board.
I just created a short video (in German) of how I did it.
Youtube Video