I steal so much code from this site that I need to contribute something back.
I have a special needs boy that can watch youtube videos of traffic lights for hours. I looked for some traffic lights online, but couldn’t find anything with four sides and actually timed. The ones I did find were hundreds of dollars.
I also wanted to:
- Convert my entry way light to DC so it can run off of my solar system
- Automate it
- Put a temperature and humidity sensor in my entryway
After much thought, I had a brilliant idea of building all of it. The result is so fun!! The kids and I have had hours of fun making it do different things. I wish I had taken videos or even pictures of the process.
Here is the ESPHOME YAML
esphome:
name: traffic-light
esp8266:
board: d1_mini
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "pass"
ota:
password: "pass"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Traffic-Light Fallback Hotspot"
password: "pass"
captive_portal:
sensor:
- platform: dht
pin: D1
temperature:
name: "TL Temp"
id: tl_temp
filters:
- lambda: return x * (9.0/5.0) + 32.0;
unit_of_measurement: "°F"
accuracy_decimals: 1
humidity:
name: "TL Humidity"
id: tl_humidity
filters:
accuracy_decimals: 1
model: DHT11
update_interval: 3s
light:
- platform: neopixelbus
type: RGB
variant: WS2811
pin: D3
num_leds: 4
name: "TL Greens"
id: tl_greens
effects:
- addressable_flicker:
- addressable_random_twinkle:
- addressable_scan:
- addressable_color_wipe:
- addressable_rainbow:
- flicker:
- random:
- platform: partition
name: "TL Greens1"
id: tl_gr_one
segments:
- id: tl_greens
from: 0
to: 0
- platform: partition
name: "TL Greens2"
id: tl_gr_two
segments:
- id: tl_greens
from: 1
to: 1
- platform: partition
name: "TL Greens3"
id: tl_gr_three
segments:
- id: tl_greens
from: 2
to: 2
- platform: partition
name: "TL Greens4"
id: tl_gr_four
segments:
- id: tl_greens
from: 3
to: 3
- platform: neopixelbus
type: RGB
variant: WS2811
pin: D4
num_leds: 4
name: "TL Yellows"
id: tl_yellows
effects:
- addressable_flicker:
- addressable_random_twinkle:
- addressable_scan:
- addressable_color_wipe:
- addressable_rainbow:
- flicker:
- random:
- platform: partition
name: "TL Yellows1"
id: tl_yl_one
segments:
- id: tl_yellows
from: 0
to: 0
- platform: partition
name: "TL Yellows2"
id: tl_yl_two
segments:
- id: tl_yellows
from: 1
to: 1
- platform: partition
name: "TL Yellows3"
id: tl_yl_three
segments:
- id: tl_yellows
from: 2
to: 2
- platform: partition
name: "TL Yellows4"
id: tl_yl_four
segments:
- id: tl_yellows
from: 3
to: 3
- platform: neopixelbus
type: RGB
variant: WS2811
pin: D2
num_leds: 4
name: "TL Reds"
id: tl_reds
effects:
- addressable_flicker:
- addressable_random_twinkle:
- addressable_scan:
- addressable_color_wipe:
- addressable_rainbow:
- flicker:
- random:
- platform: partition
name: "TL Reds1"
id: tl_rd_one
segments:
- id: tl_reds
from: 0
to: 0
- platform: partition
name: "TL Reds2"
id: tl_rd_two
segments:
- id: tl_reds
from: 1
to: 1
- platform: partition
name: "TL Reds3"
id: tl_rd_three
segments:
- id: tl_reds
from: 2
to: 2
- platform: partition
name: "TL Reds4"
id: tl_rd_four
segments:
- id: tl_reds
from: 3
to: 3
switch:
- platform: gpio
name: "TL Cans"
id: tl_cans
pin: D7
I defined four different scenes for the traffic pattern to go North (and South), slow North, go East, slow East. I also defined a few fun scenes with the effects. I’ll just post the Go North one here, I’m happy to show the others if anyone wants.
Here is the automation:
alias: TrafCrEnd
sequence:
- repeat:
count: "4"
sequence:
- service: scene.turn_on
target:
entity_id: scene.gon
metadata: {}
- delay:
hours: 0
minutes: 0
seconds: 5
milliseconds: 0
- service: scene.turn_on
target:
entity_id: scene.slown
metadata: {}
- delay:
hours: 0
minutes: 0
seconds: 1
milliseconds: 500
- service: scene.turn_on
target:
entity_id: scene.goe
metadata: {}
- delay:
hours: 0
minutes: 0
seconds: 5
milliseconds: 0
- service: scene.turn_on
target:
entity_id: scene.slowe
metadata: {}
- delay:
hours: 0
minutes: 0
seconds: 1
milliseconds: 500
- service: scene.turn_on
target:
entity_id: scene.traffic_effects
metadata: {}
mode: single
icon: mdi:alarm-light
I’m happy to answer any questions. It is lot’s of fun!
