57 lines
1.7 KiB
Markdown
57 lines
1.7 KiB
Markdown
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# CBOR Example
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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## Overview
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The [CBOR](https://en.wikipedia.org/wiki/CBOR)(Concise Binary Object Representation) is a binary data serialization format which is similar to JSON but with smaller footprint. This example will illustrate how to encode and decode CBOR data using the APIs provided by [tinycbor](https://github.com/intel/tinycbor).
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For detailed information about how CBOR encoding and decoding works, please refer to [REF7049](https://tools.ietf.org/html/rfc7049) or [cbor.io](http://cbor.io/);
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## How to use example
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### Hardware Required
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This example should be able to run on any commonly available ESP32 development board.
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### Build and Flash
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Run `idf.py -p PORT flash monitor` to build and flash the project.
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
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## Example Output
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```bash
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I (320) example: encoded buffer size 67
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I (320) example: convert CBOR to JSON
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[{"chip":"esp32","unicore":false,"ip":[192,168,1,100]},3.1400001049041748,"simple(99)","2019-07-10 09:00:00+0000","undefined"]
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I (340) example: decode CBOR manually
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Array[
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Map{
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chip
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esp32
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unicore
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false
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ip
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Array[
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192
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168
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1
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100
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]
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}
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3.14
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simple(99)
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2019-07-10 09:00:00+0000
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undefined
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]
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```
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## Troubleshooting
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For more API usage, please refer to [tinycbor API](https://intel.github.io/tinycbor/current/).
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(For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you as soon as possible.)
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