Where to ground on a PCB?

[ardian]

I have a pcb for a robot and I have added some extra parts on it for some purpose. I am new to elctronics and I dont know how and where to ground. On the pcb a hole for ground is given and I connected all the grounding wires of different ICs to it. I dont know that from here, where to connect the ground wire and how

 

[amadjo_01]

we normally connect the ground (low side) to the negative supply, (only if positive power +, and ground "gnd." , are specified in you're schematic diagram, but, if the schematic diagram tells you that, " +, gnd, -", it means you are going to use a power supply with positive,ground,and negative supply...


hope this help!!!

 

[ARUN CHOWDARY]

just attach to the any conductive part of the robot from PCB