Ok, it works now, BME data is now appearing on Madavi. And Madavi is accepting SPS30_ but only if I also include SPS30_P4, mystery solved:
{
“software_version”: “test”,
“sensordatavalues”: [
{“value_type”: “SPS30_P0”, “value”: 8},
{“value_type”: “SPS30_P1”, “value”: 18},
{“value_type”: “SPS30_P2”, “value”: 16},
{“value_type”: “SPS30_P4”, “value”: 17},
{“value_type”: “BME280_temperature”, “value”: 13.5},
{“value_type”: “BME280_humidity”, “value”: 70},
{“value_type”: “BME280_pressure”, “value”: 101000},
{“value_type”: “signal”, “value”: -50}
]
}