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https://github.com/handiko/esp12-mqtt-iot-demo
A Simple ESP12 MQTT IoT Demo.
https://github.com/handiko/esp12-mqtt-iot-demo
arduino esp12 esp8266 esp8266-arduino iot iot-device iot-platform mqtt mqtt-client mqtt-dashboard
Last synced: 3 months ago
JSON representation
A Simple ESP12 MQTT IoT Demo.
- Host: GitHub
- URL: https://github.com/handiko/esp12-mqtt-iot-demo
- Owner: handiko
- License: gpl-3.0
- Created: 2019-05-16T04:12:26.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2019-05-19T02:53:54.000Z (over 5 years ago)
- Last Synced: 2024-11-01T21:42:21.684Z (3 months ago)
- Topics: arduino, esp12, esp8266, esp8266-arduino, iot, iot-device, iot-platform, mqtt, mqtt-client, mqtt-dashboard
- Homepage: https://handiko.github.io/ESP12-MQTT-IoT-Demo/
- Size: 1.64 MB
- Stars: 5
- Watchers: 2
- Forks: 15
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# A Very Simple ESP-12 Demonstration for Sending and Receiving Data using MQTT Protocol
This project demonstrates a very simple implementation of ESP-12 to sending ADC reading and status, and receiving command from remote user through MQTT protocol. The sent data is just a floating ADC input reading and ADC reading status, and the received data from remote user is a command to enable/disable ADC reading.
Tested on Wemos D1 Mini and Arduino 1.8.9 IDE.
## Dependencies
There are a few dependencies required:
* Arduino IDE
* [ESP8266 Core for Arduino](https://github.com/esp8266/Arduino). Please follow the installation instruction.
* [PubSubClient](https://github.com/knolleary/pubsubclient) library. Personally, I am using [this](https://github.com/knolleary/pubsubclient) library.
## Usage
* Please use your own **username, password, and mqtt broker service**, then put into:
```cpp
const char* brokerUser = "your_mqttBroker_username";
const char* brokerPass = "your_mqttBroker_pass";
const char* broker = "your_broker_server";
```
personally, i am using `mqtt.dioty.co` for the broker server, so my username would be `[email protected]`. You can use another mqtt broker server.
* Put your **WiFi credentials** into:
```cpp
wifiMulti.addAP("ssid_from_AP_1", "your_password_for_AP_1");
wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2");
wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");
```
you can whether use only one SSID and password or all of them.
* ADC values are reported into the `/out/adc` topic and the AC statuses are reported into the `/out/stat`.
* ADC enabling/disabling commands are received from the `/in` topic.
## In Action
Here, I am using the MQTT Dashboard Smartphone App to see the data and to control the Wemos D1 through MQTT protocol.
* First, we command the ADC to be disabled by sending `0` charachter into the `/in/` topic. The effects are Wemos will report ADC disabled into `/out/stat` topic and ADC voltage into `/into/adc` topic.
* Then, we command the Wemos to enabling the ADC by sending `1` character into the `/in/` topic.
## TODO
* Optimize the code (there is a lot of room for improvements!!)
* Adding capabitilies for controlling another I/O ports.
* ...
## Contributing
1. Fork it [https://github.com/handiko/ESP12-MQTT-IoT-Demo/fork](https://github.com/handiko/ESP12-MQTT-IoT-Demo/fork)
2. Create new branch (`git checkout -b myfeature`)
3. Do some editing / create new feature
4. Commit your works (`git commit -m "Adding some feature blah blah blah.."`)
5. Push to the branch (`git push -u origin myfeature`)
6. Create a new Pull Request