Skip to content
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
146 lines (115 sloc) 3.87 KB
SigFox Simple Weather Station
This sketch demonstrates the usage of MKRFox1200 as a simple weather station.
It uses
the onboard temperature sensor
HTU21D I2C sensor to get humidity
Bosch BMP280 to get the barometric pressure
TSL2561 Light Sensor to get luminosity
Download the needed libraries from the following links
Since the Sigfox network can send a maximum of 120 messages per day (depending on your plan)
we'll optimize the readings and send data in compact binary format
This sketch shows how to use the Stream APIs of the library.
Refer to WeatherMonitor sketch for an example using data structures.
This example code is in the public domain.
#include <ArduinoLowPower.h>
#include <SigFox.h>
#include <Adafruit_HTU21DF.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>
#include <Adafruit_TSL2561_U.h>
#include "conversions.h"
// Set oneshot to false to trigger continuous mode when you finisched setting up the whole flow
int oneshot = true;
Adafruit_BMP280 bmp;
Adafruit_HTU21DF htu = Adafruit_HTU21DF();
Adafruit_TSL2561_Unified tsl = Adafruit_TSL2561_Unified(TSL2561_ADDR_FLOAT, 12345);
#define STATUS_OK 0
#define STATUS_BMP_KO 1
#define STATUS_HTU_KO 2
#define STATUS_TSL_KO 4
byte status;
void setup() {
if (oneshot == true) {
// Wait for the serial
while (!Serial) {}
if (!SigFox.begin()) {
// Something is really wrong, try rebooting
// Reboot is useful if we are powering the board using an unreliable power source
// (eg. solar panels or other energy harvesting methods)
//Send module to standby until we need to send a message
if (oneshot == true) {
// Enable debug prints and LED indication if we are testing
// Configure the sensors and populate the status field
if (!bmp.begin()) {
status |= STATUS_BMP_KO;
} else {
Serial.println("BMP OK");
if (!htu.begin()) {
status |= STATUS_HTU_KO;
} else {
Serial.println("HTU OK");
if (!tsl.begin()) {
status |= STATUS_TSL_KO;
} else {
Serial.println("TLS OK");
void loop() {
// Every 15 minutes, read all the sensors and send them
// Let's try to optimize the data format
// Only use floats as intermediate representaion, don't send them directly
sensors_event_t event;
float pressure = bmp.readPressure();
float temperature = bmp.readTemperature();
float humidity = htu.readHumidity();
float light = event.light;
// Start the module
// Wait at least 30ms after first configuration (100ms before)
// Prepare the packet using the Stream APIs
SigFox.write((short)convertoFloatToInt16(temperature, 60, -60));
SigFox.write((unsigned short)convertoFloatToUInt16(pressure, 200000));
SigFox.write((unsigned short)convertoFloatToUInt16(humidity, 110));
SigFox.write((unsigned short)convertoFloatToUInt16(light, 100000));
int ret = SigFox.endPacket();
if (oneshot == true) {
Serial.println("Pressure: " + String(pressure));
Serial.println("External temperature: " + String(temperature));
Serial.println("Light: " + String(event.light));
Serial.println("Humidity: " + String(humidity));
Serial.println("Status: " + String(ret));
// Shut down the module
if (oneshot == true) {
// spin forever, so we can test that the backend is behaving correctly
while (1) {}
//Sleep for 15 minutes
LowPower.sleep(15 * 60 * 1000);
void reboot() {
while (1);
You can’t perform that action at this time.