My first post here, so please go a little easy on me.
I'm just starting my journey with arduino.
I need to find a 10A AC current sensor for a project that I will be working on.
I have found loads of 5A , 20A and 30A ones. No 10A ones.
What the project will be (hopefully) is an arduino controlled current sensing mains switch.
It will be used to detect a car charger entering standby state then wait 60 sec (false trigger prevention) before turning off the output to the charger. Maximum current will be around 7A @240v.
I have searched eBay, banggood and google for a suitable 10A sensor.
I'm thinking the 20A and 30A units will not have as good a resolution as a 10A unit ?
Maybe is is an incorrect assumption on my part.
Standby state is around 75W @240v. That would be about 30mv on a 10A sensor with a 1V scale ( I think).
Can someone please point me in the direction of a suitable sensor ?
No doubt I will be back later to get assistance with the program code.
That can wait till I have all of the parts.
So far I have the arduino itself (duinotech mega 2560) a 10A relay, the power supply for the arduino, an LCD screen (16x2 Backlit), a rotary encoder and some jumper cables.
Thanks in advance