I use a custom Driver for an end-device (uplink decoder and downlink encoder). The decoder works but for the downlink encoder I can't find in the documentation the JSON object properties to send to ThingPark. When I send a downlink raw payload I used this one which works :
"DevEUI_downlink": {
"DevEUI": "My-Device-EUI",
"FPort": "1",
"payload_hex": "01020304"
}
Thank you.