SC511 Starry Sky Projector (Togaga)

regnets · April 24, 2025, 6:16pm

I got myself a few starry sky projectors from Amazon.

I replaced theWB3S with an ESP12F board and thought it would be as easy as just switching some GPIO Pins to trigger nebula, stars and moon, however it seems that i can only switch on the nebula lights (rgb) however these are activating the motor, stars and moon as well. After inspecting the pcb there is a

onboard and its most possible that this includes somekind of firmware from tuya and i need to communicate with it through serial.

Where do i start now?

Attached some pictures for reference.

Karosm · April 24, 2025, 7:16pm

I don’t know but probably it has been used as some kind of port expander.

regnets · April 24, 2025, 7:26pm

This is were i am currently at:

substitutions:
  name: Valeries Zimmer Sternenhimmel

esphome:
  name: valeries-zimmer-sternenhimmel
  friendly_name: $name

esp8266:
  board: esp01_1m

logger:
  baud_rate: 0
  level: DEBUG

api:

ota:
  - platform: esphome

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  ap:
    ssid: $name

captive_portal:

web_server:
  port: 80

uart:
  baud_rate: 57600
  tx_pin: GPIO1
  rx_pin: GPIO3

tuya:

switch:
  - platform: "tuya"
    name: "Power"
    switch_datapoint: 20

light:
  - platform: rgb
    name: $name Licht
    red: GPIO4
    green: GPIO12
    blue: GPIO14
    restore_mode: ALWAYS_OFF
    default_transition_length: 0.4s
    effects:
      - random:
          name: Random
          transition_length: 5s
          update_interval: 5s
      - random:
          name: Random Slow
          transition_length: 10s
          update_interval: 5s
      - pulse:
          name: "Fast Pulse"
          transition_length: 0.5s
          update_interval: 0.5s
          min_brightness: 0%
          max_brightness: 100%
      - pulse:
          name: "Slow Pulse"
          transition_length: 500ms
          update_interval: 2s
      - pulse:
          name: "Asymmetrical Pulse"
          transition_length:
            on_length: 1s
            off_length: 500ms
          update_interval: 1.5s
      - flicker:
          name: Flicker
          alpha: 95%
          intensity: 1.5%

output:
  - platform: esp8266_pwm
    id: GPIO4
    pin: GPIO4
  - platform: esp8266_pwm
    id: GPIO12
    pin: GPIO12
  - platform: esp8266_pwm
    id: GPIO14
    pin: GPIO14


text_sensor:
  - platform: wifi_info
    ssid:
      name: "SSID"
    ip_address: 
      name: "IP Address"
    mac_address: 
      name: "MAC Address"

sensor:
  - platform: wifi_signal
    name: "WiFi Signal dB"
    id: wifi_signal_db
    update_interval: 60s
    entity_category: "diagnostic"

  - platform: uptime
    name: "Uptime"
    unit_of_measurement: minutes
    filters:
      - lambda: return x / 60.0;
    entity_category: "diagnostic"

However currently i always get the message:
“21:25:55 [E] [tuya:464]
Initialization failed at init_state 0”

I tried already different baud rates (9600, 57600, 115200) and GPIO Pins (3,1; 1,3).