mqtt
qq logiciels utiles (publishers et receivers)
La partie broker(serveur) est confié à un serveur de test (exple test.mosquitto.org )
sous windows
https://mqttfx.jensd.de/index.php/download
appli android
https://play.google.com/store/apps/details?id=snr.lab.iotmqttpanel.prod
https://play.google.com/store/apps/details?id=net.routix.mqttdash
https://play.google.com/store/apps/details?id=com.mscino.sensornode