User Manual

Page 10
The complete control of the Go to Cloud (G2C) click is done over the UART interface, by using AT commands. The list
of the available AT commands, along with the explanation and example for each of them can be found in the
AT Command Manual.
The Go to Cloud (G2C) click firmware accepts AT commands, which can be sent over the UART interface pins of
the mikroBUS
™
, either from a terminal application on a personal computer (with the addition of the USB-to-UART
adapter) or from the host MCU. When transmitting the AT command string, a timing interval between consecutive
characters should not exceed 5 seconds. The timing interval greater than 5 seconds is considered as the EOL for any
AT command (end-of-line), and the received command will be parsed as such.
More information about all the available AT commands with the detailed explanation can be found in the AT Command Manual.
UART interface – configuration:
After the power-on, the Go to Cloud (G2C) click will start in the bootloader mode, which will be terminated after 5
seconds. During these 5 seconds, the MK64F MCU onboard the Go to Cloud (G2C) click will be visible to the USB
HID Bootloader application, allowing its firmware to be updated. When the connection with the USB HID Bootloader
application is established, it will take over the control of the Go to Cloud (G2C) click and will keep it in the bootloader