I want to use acs711,i have connected the gnd of the sensor with the agnd of the microcontroller to filter the "noise", i have connected still a 1nf capacitor between analog pin and ground.
I searched the internet and saw this kit where it drives the analog signal of the sensor to an LM358 and an MCP3221. So you can pass the signal either through the a / d converter or the amplifier.
I filtering the "noise" by connecting the sensor to the analog grounding of the microcontroller will I get relatively good measurements or it is deemed necessary the output signal to pass it by an amplifier or a / d converter for correct measurements?
Thanks.
I searched the internet and saw this kit where it drives the analog signal of the sensor to an LM358 and an MCP3221. So you can pass the signal either through the a / d converter or the amplifier.
I filtering the "noise" by connecting the sensor to the analog grounding of the microcontroller will I get relatively good measurements or it is deemed necessary the output signal to pass it by an amplifier or a / d converter for correct measurements?
Thanks.