» GPRS SIM928A 02: Changing power mode from ON to RF_OFF
This example shows how power off the RF circuits of the GPRS_SIM928A module
Required Materials
1 x Waspmote
1 x Battery
1 x GPRS_SIM928A module
Notes
- This example must be mastered by those users who want increase battery life reducing the power consumption of the GPRS_SIM928 module
- GPRS_SIM928 module must be powered with a battery
- When GPRS_SIM928 is in use, interrupts can't be used
- This example can be executed in Waspmote v12 and Waspmote v15
Code
/*
* ------ GPRS_SIM928A_02 - Changing power mode from ON to RF_OFF --------
*
* Explanation: This example shows how power off the RF circuits
* from GPRS_SIM928A module
*
* Copyright (C) 2015 Libelium Comunicaciones Distribuidas S.L.
* http://www.libelium.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Version: 0.1
* Design: David Gascón
* Implementation: Alejandro Gállego
*/
#include "WaspGPRS_SIM928A.h"
int answer;
void setup()
{
// setup for Serial port over USB:
USB.ON();
USB.println(F("USB port started..."));
// 1. activates the GPRS_SIM928A module:
answer = GPRS_SIM928A.ON();
if ((answer == 1) || (answer == -3))
{
USB.println(F("GPRS_SIM928A module ready..."));
// 2. changes the power mode from ON to OFF:
USB.println(F("Power off the RF circuits of GPRS_SIM928A module"));
if (GPRS_SIM928A.setMode(GPRS_PRO_RF_OFF) == 1)
{
USB.println(F("Mode changed succesfully"));
}
else
{
USB.println(F("Error changing power mode"));
}
}
else
{
USB.println(F("GPRS_SIM928A module NOT ready..."));
}
}
void loop()
{
}Output
H#
USB port started...
GPRS_SIM928A module ready...
Power off the RF circuits of the GPRS_SIM928A module
Mode changed succesfully