Demo:
Features:
- One Switch available on home-assistant to turn on / off the tower (Both LED and Servomotors)
- Random movement of both motors
Parts:
- A Pan/Tilt combo that you can find online easily (I used that one)
- A Laser module (I used that one)
- An ESP32 board (I used that one)
ESP32 Code (ESPHome framework):
esphome:
name: laser_tower
platform: ESP32
board: esp-wrover-kit
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_pwd
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Laser Tower Fallback Hotspot"
password: !secret esphome_ap_pwd
captive_portal:
# Enable logging
logger:
# Enable Home Assistant API
api:
password: !secret esphome_api_pwd
ota:
password: !secret esphome_ota_pwd
output:
- platform: ledc
pin: GPIO13
id: gpio_13
frequency: 50Hz
- platform: ledc
pin: GPIO12
id: gpio_12
frequency: 50Hz
servo:
- id: my_servo_1
output: gpio_13
- id: my_servo_2
output: gpio_12
switch:
- platform: gpio
id: switch_laser
pin: GPIO14
name: "Laser Schrodie"
on_turn_on:
- while:
condition:
switch.is_on: switch_laser
then:
- servo.write:
id: my_servo_1
level: !lambda |-
static int position_1 = 0;
position_1 = min( max( int(position_1 + (rand() % 3) - 1) , -100), 100);
return position_1 / 100.0;
- servo.write:
id: my_servo_2
level: !lambda |-
static int position_2 = -40;
position_2 = min( max( int(position_2 + (rand() % 3) - 1) , -80), 0);
return position_2 / 100.0;
- delay: 100ms
I’ll try to capture my cat playing with it but right now … she’s sleeping 