Hello, I'm trying to make a project and I have a trouble. The project is 'online monitoring of machine'. I will show ON if machine works and OFF if machine does not work. And the rule is: I can not effect machine by my circuit. So it looks so simple. I bought SCT-013 non-invasive current sensor and connected it to the Raspberry Pi over MCP3008 ADC. When I run the program I see ON and OFF both even machine works. I just need ON or OFF according to machine status. I checked the signal from SCT-013 by oscilloscop and the signal is like below here. If you guys have ideas please share with me. Best Regards. Coskun.