81 lines
3.2 KiB
Markdown
81 lines
3.2 KiB
Markdown
# MQTT Example
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This is nRF24L01 and MQTT gateway application.
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```
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+----------+ +----------+ +----------+ +----------+
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|Publisher |--(MQTT)-->| Broker |--(MQTT)-->| ESP32 |--(SPI)--->| nRF24L01 |==(Radio)==>
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+----------+ +----------+ +----------+ +----------+
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+----------+ +----------+ +----------+ +----------+
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==(Radio)==>| nRF24L01 |--(SPI)--->| ESP32 |--(MQTT)-->| Broker |--(MQTT)-->|Subscriber|
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+----------+ +----------+ +----------+ +----------+
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```
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# Configuration
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## WiFi Setting
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## Radioi Setting
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### MQTT to Radio
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Subscribe with MQTT and send to Radio.
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You can use mosquitto_pub as Publisher.
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```sh ./mqtt_pub.sh```
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```
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+----------+ +----------+ +----------+ +----------+
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|Publisher |--(MQTT)-->| Broker |--(MQTT)-->| ESP32 |--(SPI)--->| nRF24L01 |==(Radio)==>
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+----------+ +----------+ +----------+ +----------+
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```
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### Radio to MQTT
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Receive from Radio and publish as MQTT.
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You can use mosquitto_sub as Subscriber.
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```sh ./mqtt_sub.sh```
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```
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+----------+ +----------+ +----------+ +----------+
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==(Radio)==>| nRF24L01 |--(SPI)--->| ESP32 |--(MQTT)-->| Broker |--(MQTT)-->|Subscriber|
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+----------+ +----------+ +----------+ +----------+
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```
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### Specifying an MQTT Broker
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You can specify your MQTT broker in one of the following ways:
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- IP address
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```192.168.10.20```
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- mDNS host name
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```mqtt-broker.local```
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- Fully Qualified Domain Name
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```broker.emqx.io```
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You can use this as broker.
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https://github.com/nopnop2002/esp-idf-mqtt-broker
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# Communicate with Arduino Environment
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Run this sketch.
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ArduinoCode\Peer-to-peer\StringTest
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