ESP32 - SIM808 optimization code -- 2

Project in English / Proyecto en Español It’s about a PCB with ESP32 and SIM808. Please, don't apply if you don't have ESP32 and SIM808 device at home. Project code was based on the next tutorial: [login to view URL] 1-Main code optimization Keep only the essential code in the main file and Put setting/configuration parameters and functions in separate files and link them to the project. 2-Main code improvement Add wifi alternative • If wifi detected, send by wifi. If no wifi but GPRS activate, send through GPRS. If wifi and GPRS are not activated or not available, do measure of sensors, save to SDCard and go to sleep. Add GPS coordinates from SIM808. Take data-time from GPRS SIM808. If Wifi was selected take data-time from Wifi. If no GSM and Wifi available, take data from RTC. GPRS SIM808 optimization waiting time and blocking situations. !!!!! Multithread for 2 cores: • In the main core runs the main code. • In the second one run timer and GPIO activation of TPL5110 for going to sleep. Is like an watch dog. SDcard code optimization for storage data Deep sleep optimization for minimum consumption. 3- Sensor integration using I2C protocol: Integrate "TFmini Plus LiDAR" sensor. Integrate SHT31 sensor. The resulted code must be functional. Time for development: no more than 7 days