M5stack Demo Board notes

• M5Stack-HelloWorld - the basics
• SHT30 - temperature
• WFi+NTP - Connecting to WiFi
• SHT30+WFi+NTP+MQTT - publishing sensor data to MQTT broker
• SHT30+WFi+NTP+AWSIoTCore - publishing sensor data to AWS IoT Core

References

• Tech datails and code of M5Stack library for Core Basic: https://github.com/m5stack/m5stack
• https://randomnerdtutorials.com/esp32-useful-wi-fi-functions-arduino/#4
• M5Stack.h functions: https://github.com/m5stack/M5Stack/blob/master/src/M5Stack.h
• ESPDateTime, Time library: https://github.com/mcxiaoke/ESPDateTime/blob/master/examples/simple/main.cpp
• Timezones: https://github.com/mcxiaoke/ESPDateTime/blob/master/src/DateTimeTZ.h

Troubleshouting

Remove "build/" directory if building process fails.