Question/Issue: I’ve been working for months creating my own Edge Impulse firmware to let me use the edge-impulse-daemon with my custom microcontroller. I achieved to do it and I am happy with it. The thing is that recently I wanted to start testing with audio, using a PDM microphone, and working with 16khz creates big buffers that I am having problems sending through the CLI, I can successfully send a maximum of 64 ms of audio but if I try to exceed this time, the CLI says:
[SER] Configured upload settings
[SER] Sampling done
[SER] Device not connected to WiFi directly, reading from buffer (bytes 0 - 32248, expecting to read ~42997 bytes...
[SER] Reading from buffer OK
[SER] File is **3053** bytes after decoding
[SER] Uploading to https://ingestion.edgeimpulse.com/api/training/data
[SER] Failed to upload to https://ingestion.edgeimpulse.com/api/training/data StatusCodeError: 400 - "Invalid message body, was specified to be CBOR but could not decode message (Undeterminated nesting)"
I have supported development boards that can send buffers bigger than 32000 bytes, I don’t know why I am having the limitation of 3054, should I send the buffer split in parts by a particular character?
Note: I know I am sending a well formated Json to Cbor to base64 because it works with lower times, also I noticed that my Wio Terminal sends the values data with a Ref-Binary-i16 header, don’t know if this is the solution.
Here is an example of what I am sending (Cbor) so you can check the Json on Cbor.me website :
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Project ID: 66641
Context/Use case: Audio applications