There are 2 repositories under raspberrypi-gpio-library topic.
Raspberry Pi ile Linux ve Elektronik Uygulamaları
Read/Write Raspberry Pi 3 GPIO Pins and store them in a server using C# .NET Core, PHP, SQL
The unit receives a textmessage to the GSM-module, if the message is correct, it sends it to a RPi using NRF24L01 2,4GHZ modules. The pythonscript translates message and takes picture with picamera and sends it to a Gmailadress!