Tado Humidity Sensor and TP-Link Smart Plug
I created this simple script because I could not find a way to automatically turn on / off my dehumidifier using IFTTT with Tado’s humidity sensor.
You can download the code here: https://github.com/gtom1984/Tado-Kasa/
Requirements:
- TADO Smart Thermostat and Tado account
- TP-Link HS110 Smart Plug and Kasa cloud account
- Dehumidifier to plug into the smart plug
- Amazon Web Services account (services used: Lambda python3.6, Simple Email Service, KMS)
How it works:
A cloud watch event is run every 4 hours (or whenever you choose). The event triggers the Python Lambda script (with KMS keys to encrypt the account passwords). The Tado’s humidity will be read from the cloud account. The smart plug will be activated if the humidity is over a certain threshold. It will be shut off if the humidity drops below the threshold when the script is run again. The humidity reading, and plug’s responses are recorded in the AWS Cloud Watch log. The current is monitored when the device is started, you will receive an email if the current is low and the device is on, this is a good way to know the water tank is full.
Configuration:
All configuration is handled by AWS Lambda environment variables
- HUMIDITY_THRESHOLD = provide percentage as a float e.g. 55.5
- TADO_USERNAME = plain text username (your email)
- TADO_PASSWORD = your Tado account’s password, be sure to enabled KMS encryption, the script assumes you did!
- KASA_USERNAME = plain text username (your email)
- KASA_PASSWORD = your Kasa account’s password, be sure to enabled KMS encryption, the script assumes you did!
- KASA_DEVICE_ALIAS = the device’s name in the iOS or Android Kasa app, this is a simple plain text name for your plug, it should be unique
- KASA_REGION_URL = Your region’s URL for your account (this was tested with https://eu-wap.tplinkcloud.com/)
- CURRENT_ALERT = float for current threshold, find a number between the current when the device is running and when the tank needs to be emptied (not running but powered on), this will be used to trigger an email alert that will tell you to empty the water tank
- SENDER_EMAIL = e-mail address that you approved on AWS Simple Email service to send from
- RECIPIENT_EMAIL = email address to receive alerts for low current when running
