Welcome to Ethernet Weather Station project

Requirements

• Arduino Uno Ethernet alt. Arduino with Ethernet Shield
• DHT22 temperature/humidity sensor
• Adafruit BMP085 breakout board
• Geiger Counter Radiation Detector
• nRF24L01 module

Assembly

Pins assignment

Arduino pin	Attached to
VCC	VCC pin of the DHT22 and BMP085
GND	GND pin of the DHT22 and BMP085
A5	SCL of the BMP085
A4	SDA of the BMP085
D2	Pin 2 of the DHT
D3	Interupt pin on Geiger Counter
GND	GND pin of nRF24L01+
3.3V	VCC pin of nRF24L01+
D6	CE pin of nRF24L01+
D7	CSN pin of nRF24L01+
D11	MOSI pin of nRF24L01+
D12	MISO pin of nRF24L01+
D13	SCK pin of nRF24L01+

Add a 10K resistor between pin 2 and pin 1 of the DHT

Build process

Using the Makefile

export MAC_ADDRESS="0x90, 0xA2, 0xDA, 0x00, 0x75, 0xED"
export IP_ADDRESS="10,0,1,20"

export ARDUINODIR=/home/daijo/arduino-1.0.1/
export SERIALDEV=/dev/ttyUSB0
export BOARD=ethernet
make
make upload

Usage

Once powered on the Ethernet Weather Station will try to get an IP address via DHCP and wait for HTTP clients to connect. It also listens for incoming data packets from the nRF24L01 module.

Notes

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Licenses

• Adafruit BMP085 library - BSD License, Copyright (c) Limor Fried/Ladyada for Adafruit Industries.
• Adafruit DHT library - MIT License, Copyright (c) Adafruit Industries.
• Ethernet Weather Station - GPL, Copyright (c) 2012, Daniel Hjort
• MsTimer2 library - LGPL, Copyright (c) 2008, Javier Valencia
• RF24 library - GPL, Copyright (C) 2011 J. Coliz