CO2-Ampel / CO2-Traffic-Light to measure and show the carbon dioxide concentration in a room, based on Sensirion SCD30/SCD4x sensor and Microchip SAMD21 microcontroller
This will make the setup() code reopen the AP if you have entered a wrong WiFi password, e.g.
Otherwise you are stuck with a device only accessible via serial, or via using special key combinations.
This will make the setup() code reopen the AP if you have entered a wrong WiFi password, e.g. Otherwise you are stuck with a device only accessible via serial, or via using special key combinations.