Page 30 - Programming the Photon Getting Started With the Internet of Things

Photon board is not responding after a hard reset, then the last option is a factory reset of
the board itself, which will wipe everything off and restart your Photon as if it was newly
out of the box again. You can do this by holding down both the SETUP and RESET

buttons for 10 seconds—the LED should flash white quickly and then turn another color
when it has been reset.

Figure 2.1 Photon board.

On the Photon board you should be able to see two LEDs. There is one RGB LED in
the middle of the board, which shows you the status of your Photon’s network connection.

There is also one other small blue Surface Mount Diode (SMD) LED, which is the user
LED; this is connected to pin D7, so when you turn the D7 pin HIGH or LOW, it turns the
blue LED either ON or OFF. The RGB LED shows the following states:

Flashing blue Listening mode; waiting for network information.

Solid blue Smart Config complete; network information has been found.

Flashing green Connecting to the local Wi-Fi using the credentials found.

Flashing cyan Connecting to the Particle cloud.
Quick flashing cyan Initiating a handshake with the Particle cloud.

Slow pulsating cyan Successfully connected to the Particle cloud.

Flashing yellow Bootloader mode; awaiting for new code via USB or using the
JTAG shield.

White pulsing Startup; the Photon is powered on.

Flashing white Factory reset has been initiated.