Portable thermometer using Wemos board

Original document: 2017

Update1: 13/08/2024

I had to install the CP210x drivers for the Wemos d1 mini board on a Windows 11 OS. First thing is to download the Silabs drivers.

Get the one highlighted here below.

Unzip and install. Then go to the "Device Manager" and check they have been installed.

In your Arduino IDE environment, you may have to download the ESP8266 package. Go to File --> Preferences and in your "Additional Boards Manager URLs:" field, enter the following path:

http://arduino.esp8266.com/stable/package_esp8266com_index.json

Note that "http" is without the final "s"!

End of update1

This is a project that was finished in 2017 and it's still working! Nothing has changed, just added a page here to link to the description.

The temperature is sent every minute to emoncms.org. Then it goes to deep sleep.

You can use your mobile phone in tethering mode assuming you have defined your credentials before going out!

Data will be sent through your 3G/4G network.