Just Sharing the work i Did recently.
R503 Grow Sensor from Ali express. You may find Mounting plate and plastic/steel cover on Grow store on aliexpress.
I am using nodemcu esp8266, you may use D1 mini or ESp32.
ESP Configuration mentioned below has option to operate lock through 3.3v relay and a 3.3v buzzer for audio signal in case of matched or unmatched fingerprint.
Sensor Wires:
· Red and white: 3V
· Black: G
· Yellow: D1 , Rx Pin of Sensor
· Gree/Brown: D0 , Tx Pin of Sensor
· Blue: D2, sensing pin of grow sensor
LOCK relay=D5; //Lock-Connect at D5
BUZZER =D8; //Buzzer-Connect positve to D8
To Enroll in home assistant:
Developer tools> actions & Enter
ESPHome: lobby_biometric_esp_enroll
Light purple mean ready to scan finger
Flashes blue 2 time means scan is ok
Green Flashes means scan saved successfully
To Cancel Scan enroll which is initiated
Developer tools> actions & Enter
ESPHome: lobby_biometric_esp_cancel_enroll
To Delete a Finger Print:
Developer tools> actions & Enter
ESPHome: lobby_biometric_esp_delete
Here is the code:
substitutions:
platform: ESP8266
board: nodemcu
device_name: lobby-biometric-esp
friendly_name: "lobby_fingerprint_esp"
reboot_timeout_wifi: 900s
reboot_timeout_api: 1800s
output_power: 17dB
#################################
esphome:
name: ${device_name}
on_boot:
priority: 600 # Ensures it runs after sensors initialize
then:
- lambda: |-
id(fingerprint_name).publish_state("Started");
esp8266: # Define the correct platform here
board: ${board}
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
fast_connect: on
reboot_timeout: ${reboot_timeout_wifi}
output_power: ${output_power}
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "AP_${friendly_name}"
password: !secret ap_password
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "add yours"
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:
ota:
- platform: esphome
password: !secret ota_password
web_server:
port: 80
captive_portal:
mdns:
debug:
update_interval: 30s
#####################################################
uart:
tx_pin: D0 # Or GPIO17 for ESP32
rx_pin: D1 # Or GPIO16 for ESP32
baud_rate: 57600
fingerprint_grow:
sensing_pin: D2 # Or GPIO05 for ESP32
on_finger_scan_matched:
# - switch.turn_on: trigger_relay
- fingerprint_grow.aura_led_control:
state: BREATHING
speed: 200
color: Green
count: 2
- switch.turn_on: lobby_door_lock_esp
- output.turn_on: buzzer
- delay: 200ms
- output.turn_off: buzzer
- text_sensor.template.publish:
id: fingerprint_state
state: "Authorized finger"
- delay: 500ms
- lambda: |-
if (id(last_finger_id).state >= 1 && id(last_finger_id).state <= 10) {
id(fingerprint_name).publish_state("Usman");
} else if (id(last_finger_id).state >= 11 && id(last_finger_id).state <= 20) {
id(fingerprint_name).publish_state("Aisha");
} else if (id(last_finger_id).state >= 21 && id(last_finger_id).state <= 30) {
id(fingerprint_name).publish_state("Ayan");
} else if (id(last_finger_id).state >= 31 && id(last_finger_id).state <= 40) {
id(fingerprint_name).publish_state("Ahmad");
} else if (id(last_finger_id).state >= 41 && id(last_finger_id).state <= 50) {
id(fingerprint_name).publish_state("Ser");
} else {
id(fingerprint_name).publish_state("Unknown");
}
- delay: 5s
- text_sensor.template.publish:
id: fingerprint_state
state: "Ready for Scan"
on_finger_scan_unmatched:
- fingerprint_grow.aura_led_control:
state: FLASHING
speed: 35
color: RED
count: 5
- repeat:
count: 3
then:
- output.turn_on: buzzer
- delay: 300ms
- output.turn_off: buzzer
- delay: 300ms
- text_sensor.template.publish:
id: fingerprint_state
state: "Unauthorized finger"
- text_sensor.template.publish:
id: fingerprint_name
state: "Unauthorized Person"
- delay: 3s
- text_sensor.template.publish:
id: fingerprint_state
state: "Ready for Scan"
on_enrollment_scan:
- fingerprint_grow.aura_led_control:
state: FLASHING
speed: 25
color: BLUE
count: 2
- fingerprint_grow.aura_led_control:
state: ALWAYS_ON
speed: 0
color: PURPLE
count: 0
- text_sensor.template.publish:
id: fingerprint_state
state: "Finger scanned"
- delay: 8s
- text_sensor.template.publish:
id: fingerprint_state
state: "Ready for Scan"
on_enrollment_done:
- fingerprint_grow.aura_led_control:
state: BREATHING
speed: 100
color: GREEN
count: 2
- text_sensor.template.publish:
id: fingerprint_state
state: "Enrolled fingerprint"
- delay: 10s
- text_sensor.template.publish:
id: fingerprint_state
state: "Ready for Scan"
on_enrollment_failed:
- fingerprint_grow.aura_led_control:
state: FLASHING
speed: 25
color: RED
count: 4
- text_sensor.template.publish:
id: fingerprint_state
state: "Failed to enroll fingerprint"
- delay: 10s
- text_sensor.template.publish:
id: fingerprint_state
state: "Ready for Scan"
text_sensor:
- platform: template
id: fingerprint_state
name: "Lobby Fingerprint State"
- platform: template
id: fingerprint_name
name: "Fingerprint Name"
sensor:
- platform: fingerprint_grow
fingerprint_count:
name: "Lobby Fingerprint Count"
id: fingerprint_count
last_finger_id:
name: "Lobby Fingerprint Last Finger ID"
id: last_finger_id
last_confidence:
name: "Lobby Fingerprint Last Confidence"
status:
name: "Lobby Fingerprint Status"
capacity:
name: "Lobby Fingerprint Capacity"
security_level:
name: "Lobby Fingerprint Security Level"
output:
- platform: gpio
id: buzzer
pin: D8 #Buzzer-Connect positve to D8
switch:
- platform: gpio
name: "Lobby Door Lock ESP"
id: lobby_door_lock_esp
pin: D5
restore_mode: ALWAYS_OFF
on_turn_on:
- delay: 1s
- switch.turn_off: lobby_door_lock_esp
In Home assistant: Add this to integration with IP address of you esp
Below are cards you may add to home Assistant.
- type: sections
max_columns: 4
title: FingerPrint
path: fingerprint
sections:- type: grid
cards:- type: heading
heading: New section - type: glance
entities:- entity: sensor.lobby_fingerprint_state
- entity: sensor.fingerprint_name
name: Last Scanned Person
title: Lobby Biometric Sensor
- type: custom:mushroom-lock-card
entity: lock.lobby_door_lock_esp
- type: heading
- type: grid
