Controller not powering usb ports

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey trituimajin,

@trituimajin

@OnefinityCNC

Remove the touch screen usb wire and see if it “turns back on” the usb ports.

Much appreciated, Onefinity. I tried it - the USBs and receiver USB works after when I unplug the screen USB but immediately lose power when the screen USB is plugged back in.

I would check if the separate power supply of the Touch screen really works and especially is plugged into the right socket. Does the Touchscreen light up when it is NOT connected to the USB port of the Onefinity Controller?

The gamepad receiver and a USB flash stick should alone should not exceed the power limit of the Raspberry Pi.

@Aiph5u

the Onefinity CNC Controller contains a Raspberry Pi 3B (not plus) that is equipped with USB 2.0 ports which, by the USB 2.0 standard, may power devices with up to 500 mA per device[1], but the Raspberry Pi 3B has a maximum total USB peripheral current draw limit of 1200 mA[2], even if the Raspberry Pi is powered with the recommended 2500 mA power supply.

…, or, as is the case, with an even larger power supply inside the Onefinity Controller.

• You also could try a USB 2.0 hub. They usually come with a separate power supply, which I would always use (in a wall outlet).