Specifications

L506 Hardware Design
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FLIGHTMODE pin can be used to control module to enter or exit the flight mode. In flight mode, L506 internal
radio frequency circuit is closed. FLIGHTMODE reference circuit as shown in the figure below:
Figure 3-20:Flight mode recommended circuit (physical buttons)
3.11 Net Light interface
3.11.1 Pin define
Table 3-20 LED pin definitions
Pin No.
Net name
I/Otype
description
51
NETLIGHT
DO
Module net state identify control LED port
3.11.2 Net light application
The L506 module has 1 pins for controlling the LED display, which can be used as an indicator of
network connection status. Different network states are represented by the mode of the flashing light.
This pin is an GPIO，with An external NPN Transistor，External connect VBAT can directly drive
LED. Drive current capacity varies according to external NPN model ， recommend use
DTC143ZEBTL，Drive current biggest can reach 100 mA, below is the reference circuit.