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The result of your solution above
/ble/advertise/c6:65:c2:3d:e6:a7/data "123,116,58,34,89,111,117,114,32,116,101,120,116,34,125"
The message contains only digits and no text.
We are writing software for our healthcare robot and we need to send plain text to the MQTT server and in a later stadium the sensor data of the heartbeat. so the robot can pick it up and react on the data it received.
Glad you got it sorted!
I believe you should be able to do:
I don't think there is a specific attribute type in EspruinoHub for text yet though - about the closest is Eddystone for URLs