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Low-cost MQTT compatible sensor board

This projects aims to create low-cost generic device, which can be used to accomplish various task in home automation.

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This project is my attempt to create generic and flexible platform for home automation. Features include:

* OLED, displaying:
* Date and time
* Weather forecast
* Humidity
* Temperature
* DS18B20 temperature sensor
* DHT11 humidity sensor
* ENC28J60 Ethernet controller
* Magjack with two LEDs configured to display state of the connection
* Stainless steel semi-enclosure
* Can be powered from common 5V power supply with barrel jack connector
* GPIO can be configured to switch on message
* GPIO can publish message on input
* The time is also synchronized by MQTT
* The sensor data is periodically posted to MQTT

If you want to know more details, I recommend you read my blog linked on the left.
  • 1 × ATmega328p AVR Microcontroller
  • 1 × AMS1117 Linear voltage regulator
  • 1 × ENC28J60 Ethernet interface
  • 1 × J0026D21BNL MagJack
  • 1 × 0.96" I²C SSD1306 OLED Display

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David Cook wrote 08/19/2014 at 16:03 • point
Very attractive stainless steel face plate and color display!

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