Section 1 - Introduction
8
MLGPS-P
User's Guide
LED Status Lights
(Figure 1.1 B ‒ The MLGPS module)
Several status LEDs are used for reporting basic system operation. All LEDs are controlled by the
microcontroller to allow for reduced power consumption by supporting "blinking" operation. Blink modes are
specified for different reporting conditions. LED status lights are available for the following:
GREEN (POWER LED)
- A flashing green light indicates the system is powered and operating. A
fixed green light displays when the GPS receiver is loading.
RED (CHARGE LED)
- A flashing red light indicates the battery charging current:
▪
Inactive - the current is less then 20mA
▪
Flashing (single flash) - the current is up to 150mA
▪
Fast Flashing (double flash) - the current is above 150mA
BLUE (GPS STATUS)
- A flashing blue light indicates the receiver has calculated a valid position.
YELLOW #1 (Local Area Network (LAN) Link)
- A flashing yellow light indicates a valid LAN/WLAN link is
detected.
YELLOW #2 (Local Area Network (LAN) Active)
- A second flashing yellow light indicates if there is any
LAN/WLAN link activity.