🌵 Indoor WiFi-connected temperature and humidity sensor 🍶
Si7021
6 hours
or on button press to read the sensor and send data to the cloud5 minutes
in AP mode is WiFi is not connected5 minutes
in AP modeStep 1
Setup an IFTTT webhook to receive a POST request with data and add a row to a Google Spreadsheet.
Step 2
Access Point
Connect to the WiFi access point Cactus {UNIQUE_MAC_ADDRESS}
.
Go to the web page http://cactus.local
to fill in the WiFi credentials and IFTTT webhook key.
Step 3
Update Google Sheets with the data
Press on-board button or wait for the Google Sheet to update with a new row with a periodic update to the cloud.
⚠️ USB Connectors on WeMos D1 Mini vs WeMos battery shield
Charge the LiPo by plugging in the USB cable into the battery shield