Tasmota is a free source platform where the prebuild firmware binary file can be loaded into ESP based Device which can later configured with Web Us to configure the project as per your requirement.The main page of Tasmota Web Ui, the GPIOS, Timer, Sensors can be configured. The tasmota Device can communicate through Mqtt, HTTP,KNX protocols etc. The Ota Update of the Firmware is also possible with Tasmota.
Home Assistant is a free platform where you can integrate your Devices and monitor the data and control the operations.The Home assistant can also be integrated with Alexa and Google Assistant.The Windows portable version of Home Assistant is suitable for PC and Laptops. It is a very lightweight version.This HAAS WP can be downloaded from this link and watch this video to know how to download and use it.
Implement water level controller with ESP 32 ,Tasmota and Home Assistant
Hardware Setup
Water Tank Levels
Basic Setup for Simulation for Water Level Controller
Practical Setup for Water Level Controller
Sensors
We can use sensors of following types
1]Electrodes as per the type of Water (Fresh or Salty etc.).
2]SS Contact type Water Level Sensors
3]Reed Switch Water Level Sensors
4]Float Water Level Sensors
Tasmota Configution
Flash the appropriate tasmota bin file using flashing tool e.g. Web installer.To know how to flash the Tasmota code in ESP32 and configure it , watch the video.
Configure GPIO
Open the Main menu page of tasmota and Configure GPIOs in Configure Module page. as shown below.
Set GPIO 2 as Relay
Set GPIO 5 as Switch1
Set GPIO 18 as Switch 2
Set GPIO 19 as Switch2
Mqtt Configuration
Open the Mqtt Config Page and Set Broker of choice e.g.broker.hivemq.com. Set Port as 1883 and topic as tswitch.
Configure Name of the Device
Open config Other page and set Device Name as testTasmota.
Setting From Console page
Open the console page,Run the following commands from command window.
1.SetTelePeriod 10:This commands set device to send the data information over the topic every 10 seconds.
2. Set SwitchMod1 15 for switch1
SwitchMod2 15 for switch2
SwitchMod3 15 for switch3
These commands will not change the Power or Led(Gpio2) state on switch operation.
Setting UP Home Assistant
let us see how to add tasmota to home assistant
Locate the config folder where the Home Assistant Wp files are stored and open configutaion.yaml file and copy the following code.
sensor:
- platform: mqtt
name: "testtasmota_LowLevel"
unique_id: "wri1"
value_template: "{{ value_json.Switch1 }}"
state_topic: "tele/tswitch/SENSOR"
- platform: mqtt
name: "testtasmota_MidLevel"
unique_id: "wri2"
value_template: "{{ value_json.Switch2 }}"
state_topic: "tele/tswitch/SENSOR"
- platform: mqtt
name: "testtasmota_HighLevel"
unique_id: "wri3"
value_template: "{{ value_json.Switch3 }}"
state_topic: "tele/tswitch/SENSOR"
Save the file and run haas windows command script file.
Log in to the Home Assistant,Add Mqtt integration and search the Mqtt and configure Tasmota Device.
1. Search the TestTasmota Device and add Switch Control to dashboard or lovelace.
2.Add Entities testtasmota_HighLevel,testtasmota_MidLevel and testtasmota_LowLevel by clickig on the add cards.
3. Add the automation to turn Switch or Pump on and turn Switch or Pump Off.
For More Details watch the YouTube Video.
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Water Level Controller