If your data is more sensitive and you don't want to share it across the Wi-Fi network or you don't have Wi-Fi connectivity, a solution is to store your data on an SD card.
Let's see how data can be stored on an SD card.
Necessary hardware that will be used:
- Wemos D1 mini:
- microSD card shield:
- microSD card:
Since the microSD card is a shield for the Wemos D1 mini, it is easy to stack them; you just need to solder the pins ...