Led - Wavecom GR64 GSM/GPRS Integrator's Manual

5.15 LED

Pin
33
The LED interface is intended to operate a status LED, which can be programmed on
and off, or for a particular blink sequence. The LED signal is derived from a standard
GPIO and does not have sufficient drive capability to operate an LED directly, so it
requires the user to implement some form of transistor circuit.
implementation is shown below.
Figure 25: Recommended circuit for an LED implementation
GR64 Integrators Manual
Page: 70/104
Name Direction
LED Output
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable
Function
LED control signal
A recommended