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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Jean-Philippe_Rey
Actually I don't have a deep knowledge about LoRaWAN, I don't think there is any way of "pingping" a gateway.. Maybe @gnz may have the answer?
Anyway I will ask on TTN Slack channel