IoT Raspberry Pi Smart Container with Email Alert and Web Monitoring

The sensor used in that project is a HX711 Load cell with an Amplifier Module. If you are not getting proper values form the sensor it is probably because you have connected it wrong or it is not calibrated at all. You should have followed the below article to interface it properly with pi before expecting it to work properly 

https://circuitdigest.com/microcontroller-projects/raspberry-pi-weight-sensing-automatic-gate

Also you simply cant give your E-mail ID on a forum and ask people to send the answer to your inbox. Forums dont work that way!!!

All the best...

For getting you project work, use basic programming rule here to divide and conquer ;). Here first of all before coding the final code your project, just try to connect only sensor with your raspberry pi, configure it with built-in terminal to show values. Then place some weight on the sensor and check if readings are appearing in the terminal window. Take a record of these readings if these are appearing. If readings are not appearing, then you have to check the sensor side all the characteristics like pin-out configurations, input voltage, current ratings, threshold voltage and values chart against weights values. I think, there might be an issue at sensor's side, as you said that you made connections according to the tutorial. Here I recommend you to contact the SSLA technical support team, for getting better assistance regarding your project.

For getting your project work, first of all before coding the final code of your project, just try to connect only the sensor with your raspberry pi, configure it with a built-in terminal to show values. Then place some weight on the sensor and check if readings are appearing in the terminal window. Take a record of these readings if these are appearing. If readings are not appearing, then you have to check the sensor side all the characteristics like pin-out configurations, input voltage, current ratings, threshold voltage and values chart against weights values. I think there might be an issue at the sensor's side, as you said that you made connections according to the tutorial. Here I recommend you to contact the Sierra Software Ltd. technical support team, for getting better assistance regarding your project.