mDot LoRa example program that transfers analog battery voltage and two digital input status signals to the Conduit LoRa gateway.
Dependencies: PinDetect libmDot mbed-rtos mbed-src
main.cpp
- Committer:
- jlcolemanmbed
- Date:
- 2015-10-28
- Revision:
- 0:5fa2b08cb3e0
File content as of revision 0:5fa2b08cb3e0:
/**********************************************************************************
* This program monitors the power on state, kill state and battery voltage on
* Woodstream mouse trap using the Multitech mDot and UDK2 development system.
* The power on state is monitored on the PA_4(UDK2 Pin D10)and the kill state is
* monitored on the PA_5 (UDK2 Pin D13) Digital Input Pins. The battery voltage
* is monitored on the PB_1 (UDK2 Pin A0) Analog Input. The status of these pins
* are transferred from the mDot LoRa to the Conduit LoRa gateway. The status is
* also shown on the USB Debug Terminal Window.
*********************************************************************************/
#include "mbed.h"
#include "mDot.h"
#include "MTSLog.h"
#include <string>
#include <vector>
#include <algorithm>
#include "PinDetect.h"
mDot* dot;
Ticker ledTick;
Ticker batteryvoltageMonitorTick;
Ticker periodicSendTick;
AnalogIn batt_voltage(PB_1);
DigitalIn mt_pwron(PA_4);
DigitalIn mt_caught(PA_5);
DigitalOut transmitLED(LED1);
// Configuration variables
static std::string config_network_name = "JFETENGINEERING";
static std::string config_network_pass = "Deboraheng";
static uint8_t config_frequency_sub_band = 7;
//Global Variables
//static uint16_t setPoint = 21; //21 C is standard room temp
static volatile bool timeToReadBatteryVoltage = true;
static volatile bool dataChanged = true;
//static volatile bool thermostatActivated = false;
//static uint16_t sentSetPoint;
//Function prototypes
void ledTock();
void periodicSendTock();
void batteryvoltageMonitorTock();
//void up_button_callback();
//void down_button_callback();
void printError(mDot* dot, int32_t returnCode);
void printVersion();
bool setFrequencySubBand(uint8_t subBand);
bool setNetworkName(const std::string name);
bool setNetworkPassphrase(const std::string passphrase);
bool setPower(uint8_t power);
bool setAck(uint8_t retries);
bool joinNetwork();
bool send(const std::string text);
int main()
{
int32_t ret;
//Start LED startup sequence
ledTick.attach(&ledTock, 0.1);
printf("\r\n\r\n");
printf("=====================================\r\n");
printf("WoodStream LoRa Mousetrap Demo \r\n");
printf("=====================================\r\n");
printVersion();
// get the mDot handle
dot = mDot::getInstance();
dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
// reset to default config so we know what state we're in
dot->resetNetworkSession();
dot->resetConfig();
// set up the mDot with our network information
setNetworkName(config_network_name);
setNetworkPassphrase(config_network_pass);
setFrequencySubBand(config_frequency_sub_band);
setPower(20); // Reduce latency for 868 units
setAck(0); // Disable ack for less latency
logInfo("Setting TX Spreading factor");
if ((ret = dot->setTxDataRate(mDot::SF_8)) != mDot::MDOT_OK) {
logError("Failed To Set Tx Datarate %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
while (!joinNetwork()) { wait(2); dot->resetNetworkSession(); }
// Stop LED startup sequence & configure them for operation
ledTick.detach();
transmitLED = 1;
// buttonPressLED = 1;
// Configure timers
periodicSendTick.attach(&periodicSendTock, 5*60);
batteryvoltageMonitorTick.attach(&batteryvoltageMonitorTock, 0.15);
// Setup Interrupt callback function
// up_button.attach_deasserted(&up_button_callback);
// down_button.attach_deasserted(&down_button_callback);
// Start sampling buttons using interrupts
// up_button.setSampleFrequency();
// down_button.setSampleFrequency();
int old_mt_pwron = -1;
int old_mt_caught = -1;
while (1) {
if (timeToReadBatteryVoltage)
if (mt_pwron != old_mt_pwron) {
old_mt_pwron = mt_pwron;
dataChanged = true;
if (mt_caught != old_mt_caught) {
old_mt_caught = mt_caught;
dataChanged = true;
}
// printf("\n\r mt_pwron: %d, mt_caught: %d, batt_voltage: %f", old_mt_pwron, old_mt_caught, (batt_voltage*3.3));
timeToReadBatteryVoltage = false;
}
if (dataChanged) {
char latestData[100];
transmitLED = 1;
//sprintf(latestData, "temp: %d,set: %d", temperature, sentSetPoint);
sprintf(latestData, "power on: %d, kill status: %d, battery voltage: %f", old_mt_pwron, old_mt_caught, (batt_voltage*3.3));
printf("%s\r\n", latestData);
if (send(latestData)) {
dataChanged = false;
}
transmitLED = 0;
}
}
}
void ledTock() {
transmitLED = !transmitLED;
}
void periodicSendTock() {
dataChanged = true;
}
void batteryvoltageMonitorTock() {
timeToReadBatteryVoltage = true;
// if (sentSetPoint != setPoint) {
dataChanged = true;
}
void printVersion()
{
printf("%s\r\n\r\n", dot->getId().c_str());
}
bool setFrequencySubBand(uint8_t subBand)
{
int32_t returnCode;
printf("Setting frequency sub band to '%d'...\r\n", subBand);
if ((returnCode = dot->setFrequencySubBand(subBand)) != mDot::MDOT_OK) {
printError(dot, returnCode);
return false;
}
return true;
}
bool setNetworkName(const std::string name)
{
int32_t returnCode;
printf("Setting network name to '%s'...\r\n", name.c_str());
if ((returnCode = dot->setNetworkName(name)) != mDot::MDOT_OK)
{
printError(dot, returnCode);
return false;
}
return true;
}
bool setNetworkPassphrase(const std::string passphrase)
{
int32_t returnCode;
printf("Setting passphrase to '%s'...\r\n", passphrase.c_str());
if ((returnCode = dot->setNetworkPassphrase(passphrase)) != mDot::MDOT_OK)
{
printError(dot, returnCode);
return false;
}
return true;
}
bool setPower(uint8_t power)
{
int32_t returnCode;
printf("Setting tx power to '%d'...\r\n", power);
if ((returnCode = dot->setTxPower(power)) != mDot::MDOT_OK) {
printError(dot, returnCode);
return false;
}
return true;
}
bool joinNetwork()
{
int32_t returnCode;
printf("\r\nJoining network...\r\n");
if ((returnCode = dot->joinNetworkOnce()) != mDot::MDOT_OK) {
printError(dot, returnCode);
return false;
}
printf("Network Joined!\r\n");
return true;
}
bool setAck(uint8_t retries)
{
int32_t returnCode;
printf("Setting ack to '%d'...\r\n", retries);
if ((returnCode = dot->setAck(retries)) != mDot::MDOT_OK)
{
printError(dot, returnCode);
return false;
}
return true;
}
bool send(const std::string text)
{
int32_t returnCode;
uint32_t timeTillSend = dot->getNextTxMs();
if (timeTillSend != 0) {
printf("waiting %lu ms to send\r\n", timeTillSend);
return false;
}
printf("Sending data... ");
std::vector<uint8_t> data(text.begin(), text.end());
if ((returnCode = dot->send(data, 1)) != mDot::MDOT_OK)
{
printError(dot, returnCode);
return false;
}
printf("Data sent!\r\n");
return true;
}
void printError(mDot* dot, int32_t returnCode)
{
std::string error = mDot::getReturnCodeString(returnCode) + " - " + dot->getLastError();
printf("%s\r\n", error.c_str());
}