5G HUB 5G NB-IOT USB KIT Especificações e manual do utilizador - Página 12

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2.8 Powering the USB dongle

The BC660 module can be powered through USB or through external battery power source. To power it

through USB, connect PIN 1 and PIN 2 (and disconnect PIN 2 and PIN 3) on the USB/BATT power jumper

then plug the USB dongle into a USB port on a PC. The USB port provides power to the USB dongle and

BC660 module.

If the BC660 module is to be powered from external battery power source, then connect PIN 2 and PIN 3

(and disconnect PIN 1 and PIN 2) on the USB/BATT power jumper. No need to plug the USB dongle into

USB port on PC since the power is provided through the external battery power source.

Figure 7. USB/BATT jumper

2.9 Connecting UART to the USB Dongle

You interface with the USB dongle through UART interface. The UART (TXD/RXD) can be connected to any

external device with UART (Tx/Rx) interface such as an Arduino board or any other hardware board

available.

You connect the USB dongle through TXD and RXD, to a USB port in the computer through a USB-to-

UART cable. You can use cable such as this one:

USB TO UART TTL (Wires) Serial Cable (PL2303HX) MCP00102W Programmer Arduino Compatible in

Elecrow bazaar!

Such a cable has multiple colored wired, and you connect them to pins on USB dongle as follows:

White: TXD

Green: RXD

USB Dongle Rev 1.0