---
# System prepended metadata

title: IoT 資料搜集
tags: [IoT]

---

# IoT 資料搜集

## tuya

https://developer.tuya.com/en/docs/iot/Data-Parsing?id=Kb4qgsj9g1duj

https://developer.tuya.com/en/docs/iot/remote_config?id=Kbrxvzug63axu

## Tuya MQTT Standard Protocol
https://developer.tuya.com/en/docs/iot/MQTT-protocol?id=Kb65nphxrj8f1

Gateway sub-device
![image](https://hackmd.io/_uploads/HkJo_4LF0.png)

How MQTT works
![image](https://hackmd.io/_uploads/Hk6sOV8FC.png)


## Support for MQTT

Quality of Service (QoS) in MQTT messaging is an agreement between the sender and the receiver on the guarantee of delivering a message. There are three levels of QoS, namely QoS 0, QoS 1, and QoS 2. Only QoS 0 and QoS 1 are supported.

::: success

| Quality of service (QoS) | Description | Support |
| -------- | -------- | -------- |
| QoS 0		     | The message is delivered at most once. The message might be lost if the client is disconnected.     | Yes     |
|:+1:  QoS 1 (Recommended)	| The message is always delivered at least once.| Yes |
| QoS 2| 	The message is always delivered exactly once.	 | No |
:::

There are three MQTT versions, MQTT 3.1, MQTT 3.1.1, and MQTT 5. MQTT 3.1.1 is widely used in IoT environments. Tuya Developer Platform supports MQTT 3.1.1 only.

## Matter 
協議規範的完整打字稿實作 (https://buildwithmatter.com)。
包括對控制器、設備、調試、安全通訊、設備類型和叢集定義的全面支援。
https://github.com/project-chip/matter.js/


## youtube 【Matter】Tuya Matter 001 #iot #matter #tuya
https://www.youtube.com/watch?v=VN-9L1AeqzE

## BluetoothManager

bluetooth/BluetoothManager.kt

https://github.com/project-chip/connectedhomeip/blob/master/examples/android/CHIPTool/app/src/main/java/com/google/chip/chiptool/bluetooth/BluetoothManager.kt