Arduino Projects
Repository includes:
- sketch code for Arduino AVR-C Atmel ATMEGA328p and Espressif ESP8266/32 microcontroller IOT prototypes
- python data analytics & charts for time series data - Pandas, Numpy, SciPy and Matplotlib
- MQTT clients (python/nodeJS) - see weather station below
- Websocket RFC6455 Client/Server implementations (python/nodeJS/Javacsript)
- D3.js real time websocket provisioned charts -
Automated Plant Watering Standalone configurable system with scheduler & sensors based on Arduino Pro Mini 3v, Capacitive Soil Moisture Sensor, Lamp relay, 5v Pump, OLED LCD display, RTC. https://github.com/steveio/arduino/tree/master/PlantWater
Weather Station
Arduino Mega2560 sensor based wifi weather station and data logger https://github.com/steveio/arduino/blob/master/WeatherStation/WeatherStation.ino
MQTT Broker: Message queue for Weather Station input/output: mqtt_server = "192.168.1.127"; mqtt_channel_out = "esp8266.out"; mqtt_channel_in = "esp8266.in";
Start cmd: mosquitto_sub -h localhost -t esp8266.out
Python MQTT Client https://github.com/steveio/arduino/blob/master/weatherMqttClient.py Writes MQTT weather JSON data to MongoDB datastore Path: ~/Arduino/projects/python Start cmd: python weatherMqttClient.py
NodeJS MQTT -> Websocket Relay Websocket server (for browser clients0, relays MQTT JSON weather data messages https://github.com/steveio/mqttWebSocket/blob/master/mqttWebsocket.js Path: ~/Arduino/projects/nodejs/mqttClient Start cmd: node mqttWebsocket.js
Weather Statistics Web UI D3.js Radial Gauges (Websocket Provisioned) for Temperature, Humidity, Air Pressure (including tendancy), Light Level https://github.com/steveio/mqttWebSocket/blob/master/wsRadialGauge.html D3.js Barometer Air Pressure displaying current and 3hour moving average) https://github.com/steveio/mqttWebSocket/blob/master/wsRadialGaugeV2.html http://bl.ocks.org/steveio/d549b0610fd489e6a09df8f2aa805ad3 D3.js Liquid Fill Gauges with websocket JSON data provisioning - https://github.com/steveio/mqttWebSocket/blob/master/wsLiquidFillGauge.html https://bl.ocks.org/steveio/c7018c8432710ff8df75bf5a0d5cf03f