Hi,
You propose a very interesting project of which I would love to be a part. For my degree project I worked on a similar IOT device project focused on monitoring an array of 9 sensors including: Presence, humidity, temperature and intrusion. The device (NodeMCU ESP8266) communicated to a server using the MQTT protocol, which allowed to monitor and control the system remotely.
I have advanced knowledge in C and C++ software development for Arduino, NodeMCU ESP8266, ESP32 and ARM microcontrollers. In addition, I have worked previously in projects for IoT, IoMT and digital signal processing applications using various communication protocols such as: SPI, I2C, USB, UART, MQTT, RS232 and ModBUS. Always with excellent results.
Please contact me to discuss the details of your proyect. Bugs resolving cost are included in my bid amount.
Looking foward to work with you.
Best regards,
Javier Inojosa.