This project was living for long time in my head, then I made some part of it, and tested it for whole summer.
It consists of aquarium where I monitor temperature,water level, control lights, and pumps, then there are 2 vertical gardens, one which you can see in photos is hydroponics, second is filled with soil and I can controll irrigation by small pump.

Vertical tower is built from 50mm PVC tubes used for house waste. I printed ends, which I secured and sealed by silicone, then mounted it to 2 wooden boards. There are holes of 35mm drilled with big crown drill, where baskets fits. I originally ordered baskets for hydropony from aliexpress, problem was that as the tube is round, there was so much space between tube and basket. I had to design my most complicated 3D model so far, the basket itself. there are 2 files, one is with generated tree supports which works nice with this type of object.

As grow material I used small cubes of mineral wool found at IKEA for few euros for pack.

I pump water to the most top tube, and by cascades it flows with nutrients from aquarium produced by fish, and coming back down to aquarium. At the end of this outlet hose there is diffuser for preventing swirling of water in bottom of aquarium.

There is small motor pump from aliexpress which pumps the water, second motor irrigates second tower with soil.

For light I use red and blue grow strip, brightness is controlled by n-mosfet transistor, the same applies for both motors.

There is also white light for fish.

For temperature reading there is simple DS18b12 sensor with "waterproof" housing.

Water level is measured with simple floater like this

There is box for housing all electronics, it is based on wemos d1 mini.

You can find my other project Mini Fish Feeder which you can connect to this controller.

I use automation for running hydroponic pump every half hour for 3 minutes, this cycle the water in tubes and bring new nutrients.

As firmware I use ESPhome, for HomeAssistant, here is my code:

esphome:  name: smart_aquarium  platform: ESP8266  board: d1_mini  on_boot:    priority: 600    then:        - servo.write:            id: servo1            level: '-10%'        - delay: 1s        - servo.detach: servo1  wifi:  ssid: "Wifi"  password: "pass"  #manual_ip:   # static_ip: 192.168.3.122   # gateway: 192.168.3.1   # subnet: 255.255.255.0    # dns1: 192.168.3.1# Enable logginglogger:#  level: debug# Enable Home Assistant APIapi:  password: 'pass'#  services:#  - service: control_servo#    variables:#      level: float#    then:#      - servo.write:#          id: servo1#          level: !lambda 'return level / 100.0;'#      - sensor.template.publish:#          id: aktualnyUhol#          state: !lambda 'return level;'#      - delay: 3s #      - servo.detach: servo1ota:  password: 'pass'i2c:  sda: D2  scl: D4  scan: True  frequency: 800kHz#ads1115:  #- address: 0x48switch:  - platform: restart    name: "Smart aquarium restart"  - platform: template    id: cerpadloRajcinySwitch    name: "Pump second tower"    icon: "mdi:engine-outline"    turn_on_action:      then:        - switch.template.publish:            id: cerpadloRajcinySwitch            state: ON        - output.turn_on: pwm_obeh_rajciny        - output.set_level:            id: pwm_obeh_rajciny            level: 90%        - delay: 15s        - output.turn_off: pwm_obeh_rajciny        - switch.template.publish:            id: cerpadloRajcinySwitch            state: OFF            turn_off_action:      then:        - output.turn_off: pwm_obeh_rajciny        - switch.template.publish:            id: cerpadloRajcinySwitch            state: OFF  - platform: template    id: krmenieServoSwitch    name: "Feed fish"    icon: "mdi:fish"    turn_on_action:      then:        - switch.template.publish:            id: krmenieServoSwitch            state: ON        - servo.write:            id: servo1            level: '-60%'        - delay: 1s        - servo.write:            id: servo1            level: '-10%'        - delay: 1s        - servo.detach: servo1        - switch.template.publish:            id: krmenieServoSwitch            state: OFF            turn_off_action:      then:        - servo.write:            id: servo1            level: '-10%'        - delay: 1s        - servo.detach: servo1        - switch.template.publish:            id: krmenieServoSwitch            state: OFF        text_sensor:  - platform: template    name: "Smart aquarium uptime"    lambda: |-      uint32_t dur = id(uptime_s).state;      int dys = 0;      int hrs = 0;      int mnts = 0;      if (dur > 86399) {        dys = trunc(dur / 86400);        dur = dur - (dys * 86400);      }      if (dur > 3599) {        hrs = trunc(dur / 3600);        dur = dur - (hrs * 3600);      }      if (dur > 59) {        mnts = trunc(dur / 60);        dur = dur - (mnts * 60);      }      char buffer[17];      sprintf(buffer, "%ud %02uh %02um %02us", dys, hrs, mnts, dur);      return {buffer};    icon: mdi:clock-start    update_interval: 30ssensor:  - platform: uptime    id: uptime_s    update_interval: 30s  - platform: wifi_signal    name: "Smart aquarium WiFi Signal"    update_interval: 60s    - platform: dallas    address: 0x6C0302977937FA28    name: "Water temperature aquarium" dallas:  - pin: D3    update_interval: 30sbinary_sensor:  - platform: gpio    pin:      number: D7      inverted: no      mode: INPUT_PULLUP    name: "Low water level aquarium"    filters:      - delayed_on: 200ms      - delayed_off: 200ms    device_class: moistureoutput:  - platform: esp8266_pwm    pin: D0    frequency: 1000 Hz    id: pwm_obeh_hydroponia  - platform: esp8266_pwm    pin: D8    frequency: 1000 Hz    id: pwm_svetla_hydroponia  - platform: esp8266_pwm    pin: D5    frequency: 1000 Hz    id: pwm_svetla_akvarium  - platform: esp8266_pwm    pin: D6    frequency: 1000 Hz    id: pwm_obeh_rajciny  - platform: esp8266_pwm    id: pwm_servo_krmenie    pin: D1    frequency: 50 Hz    servo:  - id: servo1    output: pwm_servo_krmenie   light:  - platform: monochromatic    output: pwm_svetla_hydroponia    name: "Lights hydropony"      - platform: monochromatic    output: pwm_svetla_akvarium    name: "Lights aquarium"   fan:  - platform: speed    output: pwm_obeh_hydroponia    name: "Pump hydropony"    speed:      low: 0.25      medium: 0.35      high: 0.35

If You liked my work, You can buy me a coffee :)

Or send some crypto