I'm looking for advise on Hard wiring common practices to avoid noise reliability issues with Arduino
I'm a newbie to this stuff and I have a project I'm working on that has many components. I don't have a schematic to provide so please don't hate on me. I know I need a common ground and will do so. Keeping current draw in mind Theoretically I know I can daisy chain the ground from component to component or I can wire all grounds back to a common distribution point. Logistically, trouble shooting, ect what is the common practice for hard-wiring projects. I'll use push pin, solder connections, heat shrink and a couple of wire nuts as components allow. Vibration is not an issue.
For back ground and context: My power controller is a Arduino Mega, my supply is a 20V DC 6amp supply. Using 2 Buck converters to step down to 12V and 2.8V. component list : 5 12v DC motors, 3 12V Stepper motors, 3 5V relays, 6 5V motor controller boards, Mosfets, Resistors, Diodes, capacitors, 15 LEDS, 120V AC Vacuum motor, 120V AC heater element, 7 Momentary switches, 4 liquid level switches, 1 power switch, 14, 18 and 22 awg wire. Project foot print is approx 18"W x 16"D x 10"H
All "larger" power items, such as 120V AC items, my 3 stepper motors and 5 12V DC motors, will have their own dedicated ground.